pax_global_header00006660000000000000000000000064125764452050014524gustar00rootroot0000000000000052 comment=fa5a0062406f75a823810afe371315433eea39c5 MySQLTuner-perl-1.6.0/000077500000000000000000000000001257644520500144535ustar00rootroot00000000000000MySQLTuner-perl-1.6.0/.gitignore000066400000000000000000000000711257644520500164410ustar00rootroot00000000000000build/mysqltuner-* build/mysqltuner.spec build/build.log MySQLTuner-perl-1.6.0/.perltidy000066400000000000000000000007421257644520500163130ustar00rootroot00000000000000--backup-and-modify-in-place --backup-file-extension=beforeTidy --block-brace-tightness=2 --brace-tightness=2 --closing-token-indentation=1 --continuation-indentation=4 --indent-columns=4 --maximum-line-length=134 --cuddled-else --opening-sub-brace-on-new-line --noopening-brace-on-new-line --nooutdent-labels --paren-tightness=2 --square-bracket-tightness=2 --vertical-tightness=0 --vertical-tightness-closing=0 --break-at-old-comma-breakpoints --entab-leading-whitespace=4 --tabs MySQLTuner-perl-1.6.0/.travis.yml000066400000000000000000000010711257644520500165630ustar00rootroot00000000000000sudo: false language: perl perl: - "blead" - "5.20" - "5.18" - "5.16" - "5.14" - "5.12" - "5.10" - "5.8" matrix: include: - addons: mariadb: 5.5 perl: 5.20 - addons: mariadb: 10.0 perl: 5.20 - addons: mariadb: 10.1 perl: 5.20 before_install: - git clone git://github.com/haarg/perl-travis-helper - source perl-travis-helper/init - build-perl - perl -V install: - cpanm --quiet --notest Data::Dumper script: - ./mysqltuner.pl MySQLTuner-perl-1.6.0/CONTRIBUTING.md000066400000000000000000000171551257644520500167150ustar00rootroot00000000000000# Contributing to this project Please take a moment to review this document in order to make the contribution process easy and effective for everyone involved. Following these guidelines will help us get back to you more quickly, and will show that you care about making Chosen better just like we do. In return, we'll do our best to respond to your issue or pull request as soon as possible with the same respect. _**Please Note:** These guidelines are adapted from [@necolas](https://github.com/necolas)'s [issue-guidelines](https://github.com/necolas/issue-guidelines) and serve as an excellent starting point for contributing to any open source project._ ## Using the issue tracker The [issue tracker](https://github.com/major/MySQLTuner-perl/issues) is the preferred channel for [bug reports](#bugs), [features requests](#features) and [submitting pull requests](#pull-requests), but please respect the following restrictions: * Support issues or usage question that are not bugs should be posted on [Stack Overflow, using the `mysqltuner`](http://stackoverflow.com/questions/tagged/mysqltuner) tag. * Please **do not** derail or troll issues. Keep the discussion on topic and respect the opinions of others. ##Before Submitting an issue## 1. Upgrade to the latest version of MySQLtuner and see if the problem remains 2. Look at the [closed issues](https://github.com/major/mysqltuner-perl/issues?state=closed), we may have already answered a similar problem. 3. Post new features or bugs you have found at [ Issue tracker](https://github.com/major/mysqltuner-perl/issues) 4. [Read the doc](https://github.com/major/mysqltuner-perl/). It is short and useful. 5. [Read the internal doc](https://github.com/major/MySQLTuner-perl/blob/master/INTERNALS.md). It is a complete and detailled documentation of all checks performed by this tool and this organization. ## Bug reports A bug is a _demonstrable problem_ that is caused by the code in the repository. Good bug reports are extremely helpful — thank you! Guidelines for bug reports: 1. **Use the [GitHub issue search](https://github.com/major/MySQLTuner-perl/search?type=Issues)** — check if the issue has already been reported. 2. **Check if the bug has already been fixed** — try to reproduce it using the repository's latest `master` changes. 3. **Isolate the problem** — ideally create a [reduced test case](http://css-tricks.com/6263-reduced-test-cases/) and a live example (perhaps a [fiddle](http://jsfiddle.net)). A good bug report shouldn't leave others needing to contact you for more information. Please try to be as detailed as possible in your report. What is your environment? What steps will reproduce the issue? What browser(s) and OS experience the problem? What outcome did you expect, and how did it differ from what you actually saw? All these details will help people to fix any potential bugs. Example: > Short and descriptive example bug report title > > A summary of the issue and the browser/OS environment in which it occurs. If > suitable, include the steps required to reproduce the bug. > > 1. This is the first step > 2. This is the second step > 3. Further steps, etc. > > `` - a link to the reduced test case > > Any other information you want to share that is relevant to the issue being > reported. This might include the lines of code that you have identified as > causing the bug, and potential solutions (and your opinions on their > merits). **Note:** In an effort to keep open issues to a manageable number, we will close any issues that do not provide enough information for us to be able to work on a solution. You will be encouraged to provide the necessary details, after which we will reopen the issue. ## Feature requests Feature requests are welcome. But take a moment to find out whether your idea fits with the scope and aims of the project. It's up to *you* to make a strong case to convince the project's developers of the merits of this feature. Please provide as much detail and context as possible. Building something great means choosing features carefully especially because it is much, much easier to add features than it is to take them away. Additions to Chosen will be evaluated on a combination of scope (how well it fits into the project), maintenance burden and general usefulness. Creating something great often means saying no to seemingly good ideas. Don't dispair if your feature request isn't accepted, take action! Fork the repository, build your idea and share it with others. We released Chosen under the MIT License for this purpose precisely. Open source works best when smart and dedicated people riff off of each others' ideas to make even greater things. ## New feature request ## * You can find Enhancement asked by community at [Enhancement issue](https://github.com/major/MySQLTuner-perl/labels/enhancement) ## Pull requests Good pull requests — patches, improvements, new features — are a fantastic help. They should remain focused in scope and avoid containing unrelated commits. **Please ask first** before embarking on any significant pull request (e.g. implementing features, refactoring code, porting to a different language), otherwise you risk spending a lot of time working on something that the project's developers might not want to merge into the project. You can solicit feedback and opinions in an open feature request thread or create a new one. Please use the [git flow for pull requests](#git-flow) and follow Chosen's [code conventions](#code-conventions) before submitting your work. Adhering to these guidelines is the best way to get your work included in Chosen. #### Git Flow for pull requests 1. [Fork](http://help.github.com/fork-a-repo/) the project, clone your fork, and configure the remotes: ```bash # Clone your fork of the repo into the current directory git clone git@github.com:/chosen.git # Navigate to the newly cloned directory cd chosen # Assign the original repo to a remote called "upstream" git remote add upstream https://github.com/harvesthq/chosen ``` 2. If you cloned a while ago, get the latest changes from upstream: ```bash git checkout master git pull upstream master ``` 3. Create a new topic branch (off the main project development branch) to contain your feature, change, or fix: ```bash git checkout -b ``` 4. Commit your changes in logical chunks. Please adhere to these [git commit message guidelines](http://tbaggery.com/2008/04/19/a-note-about-git-commit-messages.html) or your code is unlikely be merged into the main project. Use Git's [interactive rebase](https://help.github.com/articles/interactive-rebase) feature to tidy up your commits before making them public. 5. Locally merge (or rebase) the upstream development branch into your topic branch: ```bash git pull [--rebase] upstream master ``` 6. Push your topic branch up to your fork: ```bash git push origin ``` 7. [Open a Pull Request](https://help.github.com/articles/using-pull-requests/) with a clear title and description. **IMPORTANT**: By submitting a patch, you agree to allow the project owner to license your work under the [GPLv3 License](https://en.wikipedia.org/wiki/GNU_General_Public_License). Copy of the licence is available at [LICENCE](https://github.com/major/MySQLTuner-perl/blob/master/LICENSE) #### Chosen Code Conventions 1. Check code convention using **perltidy** 2. Don't manually update the version number in `mysqltuner.pl`. MySQLTuner-perl-1.6.0/INTERNALS.md000066400000000000000000000144261257644520500163430ustar00rootroot00000000000000## MySQLTuner Internals ## Table of contents * [MySQLTuner steps](#mysqltuner-steps) * [Get login information steps](#mysqltuner-get-login-information-steps) * [System checks](#mysqltuner-system-checks) * [Server version checks](#mysqltuner-server-version-checks) * [MySQL Storage engine general information](#mysql-storage-engine-general-information) * [Security checks](#mysqltuner-security-checks) * [Database information](#mysqltuner-database-information) * [Index information](#mysqltuner-index-information) * [Connections information](#mysqltuner-connections-information) * [Server information](#mysqltuner-server-information) * [Sort, join and temp table information](#mysqltuner-sort-join-and-temp-table-information) * [Global buffer information](#mysqltuner-global-buffer-information) * [Query cache checks](#mysqltuner-query-cache-checks) * [Slow queries checks](#mysqltuner-slow-queries-checks) * [Replication checks](#mysqltuner-replication-checks) * [InnoDB information](#mysqltuner-innodb-information) * [ARIADB information](#mysqltuner-ariadb-information) * [MYISAM information](#mysqltuner-myisam-information) ## MySQLTuner steps * Header Print * Get login information * Set up some OS variables * Toss variables/status into hashes * Get information about the tuning connexion * Check current MySQL version * Suggest 64-bit upgrade * Show enabled storage engines * Show informations about databases (option: --dbstat) * Show informations about indexes (option: --idxstat) * Display some security recommendations * Calculate everything we need * Print the server stats * Print MyISAM stats * Print InnoDB stats * Print AriaDB stats * Print replication info * Make recommendations based on stats * Close reportfile if needed * Dump result if debug is on ## MySQLTuner get login information steps * Is a login possible? * Force socket? * Remote connection? * _Specifying available RAM is required_ * Got user/pass on command line? * mysql-quickbackup credentials available? * Plesk credentials available? * DirectAdmin credentials available? * Debian maintenance account credentials available? * Just try a login * If working, and .my.cnf isn't there, **WARNING** * If working, and .my.cnf is there, okay * Prompt for creds on the console ## MySQLTuner system checks * 32-bit w/>2GB RAM check ## MySQLTuner Server version checks * EOL MySQL version check * Currently MySQL < 5.1 are EOF considerated. * Using 5.5+ version of MySQL for performance issue (asynchronous IO). ## MySQL Storage engine general information * Get storage engine counts/stats * Check for DB engines that are enabled but unused * Look for fragmented tables * Look for auto-increments near capacity * Look for table with autoincrement with value near max capacity ## MySQLTuner security checks * Is anonymous user present? * Users without passwords * Users w/username as password * Users w/o host restriction * Weak password check (possibly using cracklib later?) * Using basic_passwords.txt as password database * Password list checks can be avoid (option: --skippassword) ## MySQLTuner database information * Per database information * Rows number * Total size * Data size * Percentage of data size * Index size * Percentage of index size ## MySQLTuner index information * Top 10 worth selectivity index * Per index information * Index Cardinality * Index Selectivity * Misc information about index definition * Misc information about index size ## MySQLTuner Connections information * Highest usage of available connections * Percentage of used connections (<85%) * Percentage of aborted connections (<3%) ## MySQLTuner server information * Uptime: If MySQL started within last 24 hours * Bytes received and sent * Number of connections * Percentage between reads and writes * Is binary log activated ? * Is GTID mode activated ? ## MySQLTuner sort, join and temp table information * Max memory temporary table size allowed. * Percentage of sort using temporary table (<10%) * Number of join performed without using indexes (<250) * Percentage of temporary table written on disk(<25%) * Thread cache (=4) * Table cache hit ratio(>2°%) * Percentage of open file and open file limit(<85%) * Percentage of table locks (<95%) * Percentage of binlog cache lock (<90%) ## MySQLTuner global buffer information * Key Buffer * Max Tmp Table * Per Thread Buffer * Read Buffer * Read RND Buffer * Sort Buffer * Thread stack * Join Buffer * Binlog Cache Buffers size if activated ## MySQLTuner query cache checks * Is Query cache activated ? * Query Cache Buffers * Query Cache DISABLED, ALL REQUEST or ON DEMAND * Query Cache Size * Query cache hit ratio (cache efficienty) ## MySQLTuner memory checks * Get total RAM/swap * Is there enought memory for max connections reached by MySQL ? * Is there enought memory for max connections allowed by MySQL ? * Max percentage of memory used(<85%) ## MySQLTuner slow queries checks * Percentage of Slow queries (<5%) ## MySQLTuner replication checks * Is server replication configuarted as slave ? * SQL replacation thread running ? * IO replacation thread running ? * Replication lag in seconds * Is Slave configuratedd in read only ? ## MySQLTuner InnoDB information * InnoDB Buffer Pool Size * If possible, innodb_buffer_pool_size should be greater data and index size for Innodb Table * Innodb_buffer_pool_size should around 75 to 80 % of the available system memory. * InnoDB Buffer Pool Instances * MySQL needs 1 instanes per 1Go of Buffer Pool * innodb_buffer_pool instances = round(innodb_buffer_pool_size / 1Go) * innodb_buffer_pool instances must be equals or lower than 64 * InnoDB Buffer Pool uUsage * If more than 20% of InnoDB buffer pool is not used, MySQLTuner raise an alert. * InnoDB Read effiency * Ratio of read without locks * InnoDB Write effiency * Ratio of write without locks * InnoDB Log Waits * Checks that no lock is used on Innodb Log. ## MySQLTuner ARIADB information * Is Aria indexes size is greater than page cache size ? * Page cache read hit ratio (>95%) * Page cache write hit ratio (>95%) ## MySQLTuner MYISAM information * Key buffer usage (>90%) * Is MyISAM indexes size is greater than key buffer size ? * Key buffer read hit ratio (>95%) * Key buffer write hit ratio (>95%) MySQLTuner-perl-1.6.0/LICENSE000066400000000000000000001045131257644520500154640ustar00rootroot00000000000000 GNU GENERAL PUBLIC LICENSE Version 3, 29 June 2007 Copyright (C) 2007 Free Software Foundation, Inc. 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The hypothetical commands `show w' and `show c' should show the appropriate parts of the General Public License. Of course, your program's commands might be different; for a GUI interface, you would use an "about box". You should also get your employer (if you work as a programmer) or school, if any, to sign a "copyright disclaimer" for the program, if necessary. For more information on this, and how to apply and follow the GNU GPL, see . The GNU General Public License does not permit incorporating your program into proprietary programs. If your program is a subroutine library, you may consider it more useful to permit linking proprietary applications with the library. If this is what you want to do, use the GNU Lesser General Public License instead of this License. But first, please read . MySQLTuner-perl-1.6.0/README.md000066400000000000000000000140101257644520500157260ustar00rootroot00000000000000MySQLTuner-perl ==== [![Build Status - Master](https://travis-ci.org/major/MySQLTuner-perl.svg?branch=master)](https://travis-ci.org/major/MySQLTuner-perl) MySQLTuner is a script written in Perl that allows you to review a MySQL installation quickly and make adjustments to increase performance and stability. The current configuration variables and status data is retrieved and presented in a brief format along with some basic performance suggestions. Compatibility: * MySQL 5.7 (partial support) * MySQL 5.6 (full support) * MariaDB 10.0 (full support) * MariaDB 10.1 (partial support) * MySQL 5.5 (full support) * MySQL 5.1 (full support) * MySQL 3.23, 4.0, 4.1, 5.0, 5.1 (full support) * Perl 5.6 or later (with [perl-doc](http://search.cpan.org/~dapm/perl-5.14.4/pod/perldoc.pod) package) * Unix/Linux based operating system (tested on Linux, BSD variants, and Solaris variants) * Windows is not supported at this time (Help wanted !!!!!) * Unrestricted read access to the MySQL server (OS root access recommended for MySQL < 5.1) ***WARNING*** -- It is **extremely important** for you to fully understand each change you make to a MySQL database server. If you don't understand portions of the script's output, or if you don't understand the recommendations, **you should consult** a knowledgeable DBA or system administrator that you trust. **Always** test your changes on staging environments, and always keep in mind that improvements in one area can **negatively affect** MySQL in other areas. **Seriously - please review the FAQ section below.** What MySQLTuner is checking exactely ? -- All checks done by **MySQLTuner** are documented in [MySQLTuner Internals](https://github.com/major/MySQLTuner-perl/blob/master/INTERNALS.md) documentation. Download/Installation -- You can download the entire repository by using 'git clone' followed by the cloning URL above. The simplest and shortest method is: wget http://mysqltuner.pl/ -O mysqltuner.pl wget https://raw.githubusercontent.com/major/MySQLTuner-perl/master/basic_passwords.txt -O basic_passwords.txt perl mysqltuner.pl Of course, you can add the execute bit (`chmod +x mysqltuner.pl`) so you can execute it without calling perl directly. Specific usage -- __Usage:__ Minimal usage locally perl mysqltuner.pl __Usage:__ Minimal usage remotely perl mysqltuner.pl --host targetDNS_IP --user admin_user --password admin_password __Usage:__ Enable maximum output information around MySQL/MariaDb without debugging perl mysqltuner.pl --buffers --dbstat --idxstat __Usage:__ Write your result in a file with information displayed perl mysqltuner.pl --outputfile /tmp/result_mysqltuner.txt __Usage:__ Write your result in a file **without outputting information** perl mysqltuner.pl --silent --outputfile /tmp/result_mysqltuner.txt __Usage:__ Using template model to customize your reporting file based on [Text::Template](https://metacpan.org/pod/Text::Template) syntax. perl mysqltuner.pl --silent --reportfile /tmp/result_mysqltuner.txt --template=/tmp/mymodel.tmpl __Usage:__ Enable debugging information perl mysqltuner.pl --debug FAQ -- Question: Will MySQLTuner fix my slow MySQL server? **No.** MySQLTuner is a read only script. It won't write to any configuration files, change the status of any daemons, or call your mother to wish her a happy birthday. It will give you an overview of your server's performance and make some basic recommendations about improvements that you can make after it completes. *Make sure you read the warning above prior to following any recommendations.* Question: Can I fire my DBA now? **MySQLTuner will not replace your DBA in any form or fashion.** If your DBA constantly takes your parking spot and steals your lunch from the fridge, then you may want to consider it - but that's your call. Question: Why does MySQLTuner keep asking me the login credentials for MySQL over and over? The script will try its best to log in via any means possible. It will check for ~/.my.cnf files, Plesk password files, and empty password root logins. If none of those are available, then you'll be prompted for a password. If you'd like the script to run in an automated fashion without user intervention, then create a .my.cnf file in your home directory which contains: [client] user=someusername pass=thatuserspassword Once you create it, make sure it's owned by your user and the mode on the file is 0600. This should prevent the prying eyes from getting your database login credentials under normal conditions. If a [T-1000 shows up in a LAPD uniform](https://en.wikipedia.org/wiki/T-1000) and demands your database credentials, you won't have much of an option. Question: Is there another way to secure credentials on latest MySQL and MariaDB distributions ? You could use mysql_config_editor utilities. $ mysql_config_editor set --login-path=client --user=someusername --password --host=localhost Enter passord: ******** $ At this time, ~/.mylogin.cnf has been written with appropriated rigth access. To get information about stored credentials, use the following command: $mysql_config_editor print [client] user = someusername password = ***** host = localhost Question: It's not working on my OS! What gives?! These kinds of things are bound to happen. Here are the details I need from you in order to research the problem thoroughly: * OS and OS version * Architecture (x86, x86_64, IA64, Commodore 64) * Exact MySQL version * Where you obtained your MySQL version (OS package, source, etc) * The full text of the error * A copy of SHOW VARIABLES and SHOW GLOBAL STATUS output (if possible) MySQLTuner needs you -- **MySQLTuner** needs contributors for documentation, code and feedbacks.. * Please join us on issue track at [GitHub tracker](https://github.com/major/MySQLTuner-perl/issues). * Contribution guide is avalaible following [MySQLTuner contributing guide](https://github.com/major/MySQLTuner-perl/blob/master/CONTRIBUTING.md) * Star **MySQLTuner project** at [MySQLTuner Git Hub Project](https://github.com/major/MySQLTuner-perl) MySQLTuner-perl-1.6.0/README.ru.md000066400000000000000000000132401257644520500163570ustar00rootroot00000000000000MySQLTuner-perl ==== MySQLTuner это скрипт, написанный на Perl, который позволяет быстро произвести осмотр текущего состояния сервера баз данных MySQL и составить рекомендации для увеличения производительности и стабильности работы. Выводятся текущие параметры конфигурации и информация о состоянии в формате отчета с основными подсказками по оптимизации. Совместимость: * MySQL 5.7 (полная поддержка) * MySQL 5.6 (полная поддержка) * MariaDB 10.0 (полная поддержка) * MariaDB 10.1 (полная поддержка) * MySQL 5.5 (полная поддержка) * MySQL 5.1 (полная поддержка) * MySQL 3.23, 4.0, 4.1, 5.0, 5.1 (полная поддержка) * Perl 5.6 или более поздний * Операционная система семейства Unix/Linux (протестировано на Linux, различных вариациях BSD и Solaris) * Windows не поддерживается на данное время * Неограниченный доступ на чтение для MySQL-сервера (Для работы с MySQL < 5.1 требуется root-доступ к серверу) Пожалуйста, прочитайте раздел ЧаВо, который расположен чуть ниже. ***ПРЕДУПРЕЖДЕНИЕ*** -- Очень важно, чтобы вы имели представление о том, какие изменения вы вносите в параметры сервера баз данных MySQL. Если вы даже частично не понимаете вывод отчета скрипта, или не понимаете рекомендации, которые делает скрипт, то вам лучше всего обратиться за помощью либо к документации к серверу баз данных, либо ближайшему системному администратору. Всегда проверяйте ваши изменения на тестовом сервере и всегда будьте готовы к тому, что улучшения в одной области могут иметь отрицательный эфект в работе MySQL в другой области. **Серьезно - прочитайте раздел ЧаВо, который расположен чуть ниже.** ПРЕДУПРЕЖДЕНИЕ -- Загрузка/Установка -- You can download the entire repository by using 'git clone' followed by the cloning URL above. The simplest and shortest method is: wget http://mysqltuner.pl/ -O mysqltuner.pl wget https://raw.githubusercontent.com/major/MySQLTuner-perl/master/basic_passwords.txt -O basic_passwords.txt perl mysqltuner.pl Of course, you can add the execute bit (chmod +x mysqltuner.pl) so you can execute it without calling perl directly. ЧаВо -- Вопрос: Will MySQLTuner fix my slow MySQL server? **No.** MySQLTuner is a read only script. It won't write to any configuration files, change the status of any daemons, or call your mother to wish her a happy birthday. It will give you an overview of your server's performance and make some basic recommendations about improvements that you can make after it completes. *Make sure you read the warning above prior to following any recommendations.* Вопрос: Can I fire my DBA now? **MySQLTuner will not replace your DBA in any form or fashion.** If your DBA constantly takes your parking spot and steals your lunch from the fridge, then you may want to consider it - but that's your call. Вопрос: Why does MySQLTuner keep asking me the login credentials for MySQL over and over? The script will try its best to log in via any means possible. It will check for ~/.my.cnf files, Plesk password files, and empty password root logins. If none of those are available, then you'll be prompted for a password. If you'd like the script to run in an automated fashion without user intervention, then create a .my.cnf file in your home directory which contains: [client] user=someusername pass=thatuserspassword Once you create it, make sure it's owned by your user and the mode on the file is 0600. This should prevent the prying eyes from getting your database login credentials under normal conditions. If a [T-1000 shows up in a LAPD uniform](https://en.wikipedia.org/wiki/T-1000) and demands your database credentials, you won't have much of an option. Вопрос: Is there another way to secure credentials on latest MySQL and MariaDB distributions ? You could use mysql_config_editor utilities. $ mysql_config_editor set --login-path=client --user=someusername --password --host=localhost Enter passord: ******** $ At this time, ~/.mylogin.cnf has been written with appropriated rigth access. To get information about stored credentials, use the following command: $mysql_config_editor print [client] user = someusername password = ***** host = localhost Вопрос: It's not working on my OS! What gives?! These kinds of things are bound to happen. Here are the details I need from you in order to research the problem thoroughly: * OS and OS version * Architecture (x86, x86_64, IA64, Commodore 64) * Exact MySQL version * Where you obtained your MySQL version (OS package, source, etc) * The full text of the error * A copy of SHOW VARIABLES and SHOW GLOBAL STATUS output (if possible)MySQLTuner-perl-1.6.0/USAGE.md000066400000000000000000000074261257644520500156520ustar00rootroot00000000000000# NAME MySQLTuner 1.4.9 - MySQL High Performance Tuning Script # IMPORTANT USAGE GUIDELINES To run the script with the default options, run the script without arguments Allow MySQL server to run for at least 24-48 hours before trusting suggestions Some routines may require root level privileges (script will provide warnings) You must provide the remote server's total memory when connecting to other servers # CONNECTION AND AUTHENTIFICATION --host Connect to a remote host to perform tests (default: localhost) --socket Use a different socket for a local connection --port Port to use for connection (default: 3306) --user Username to use for authentication --pass Password to use for authentication --mysqladmin Path to a custom mysqladmin executable --mysqlcmd Path to a custom mysql executable # PERFORMANCE AND REPORTING OPTIONS --skipsize Don't enumerate tables and their types/sizes (default: on) (Recommended for servers with many tables) --skippassword Don't perform checks on user passwords(default: off) --checkversion Check for updates to MySQLTuner (default: don't check) --forcemem Amount of RAM installed in megabytes --forceswap Amount of swap memory configured in megabytes --passwordfile Path to a password file list(one password by line) --reportfile Path to a report txt file # OUTPUT OPTIONS --nogood Remove OK responses --nobad Remove negative/suggestion responses --noinfo Remove informational responses --debug Print debug information --dbstat Print database information --idxstat Print index information --nocolor Don't print output in color --buffers Print global and per-thread buffer values # PERLDOC You can find documentation for this module with the perldoc command. perldoc mysqltuner # AUTHORS Major Hayden - major@mhtx.net # CONTRIBUTORS - Matthew Montgomery - Paul Kehrer - Dave Burgess - Jonathan Hinds - Mike Jackson - Nils Breunese - Shawn Ashlee - Luuk Vosslamber - Ville Skytta - Trent Hornibrook - Jason Gill - Mark Imbriaco - Greg Eden - Aubin Galinotti - Giovanni Bechis - Bill Bradford - Ryan Novosielski - Michael Scheidell - Blair Christensen - Hans du Plooy - Victor Trac - Everett Barnes - Tom Krouper - Gary Barrueto - Simon Greenaway - Adam Stein - Isart Montane - Baptiste M. - Cole Turner - Major Hayden - Joe Ashcraft # SUPPORT Bug reports, feature requests, and downloads at http://mysqltuner.com/ Bug tracker can be found at https://github.com/major/MySQLTuner-perl/issues Maintained by Major Hayden (major\\@mhtx.net) - Licensed under GPL # SOURCE CODE [https://github.com/major/MySQLTuner-perl](https://github.com/major/MySQLTuner-perl) git clone https://github.com/major/MySQLTuner-perl.git # COPYRIGHT AND LICENSE Copyright (C) 2006-2015 Major Hayden - major@mhtx.net For the latest updates, please visit http://mysqltuner.com/ Git repository available at http://github.com/major/MySQLTuner-perl This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see . MySQLTuner-perl-1.6.0/basic_passwords.txt000066400000000000000000000073431257644520500204110ustar00rootroot000000000000001 123456 porsche firebird prince rosebud 2 pa#sword guitar butter beach jaguar 3 12345678 chelsea united amateur great 4 1234 black turtle 7777777 cool 5 p#ssy diamond steelers muffin cooper 6 12345 nascar tiffany redsox 1313 7 dragon jackson zxcvbn star scorpio 8 qwerty cameron tomcat testing mountain 9 696969 654321 golf shannon madison 10 mustang computer bond007 murphy 987654 11 letmein amanda bear frank brazil 12 baseball wizard tiger hannah lauren 13 master xxxxxxxx doctor dave japan 14 michael money gateway eagle1 naked 15 football phoenix gators 11111 squirt 16 shadow mickey angel mother stars 17 monkey bailey junior nathan apple 18 abc123 knight thx1138 raiders alexis 19 pa#s iceman porno steve aaaa 20 f#ckme tigers badboy forever bonnie 21 6969 purple debbie angela peaches 22 jordan andrea spider viper jasmine 23 harley horny melissa ou812 kevin 24 ranger dakota booger jake matt 25 iwantu aaaaaa 1212 lovers qwertyui 26 jennifer player flyers suckit danielle 27 hunter sunshine fish gregory beaver 28 f#ck morgan porn buddy 4321 29 2000 starwars matrix whatever 4128 30 test boomer teens young runner 31 batman cowboys scooby nicholas swimming 32 trustno1 edward jason lucky dolphin 33 thomas charles walter helpme gordon 34 tigger girls c#mshot jackie casper 35 robert booboo boston monica stupid 36 access coffee braves midnight shit 37 love xxxxxx yankee college saturn 38 buster bulldog lover baby gemini 39 1234567 ncc1701 barney c#nt apples 40 soccer rabbit victor brian august 41 hockey peanut tucker mark 3333 42 killer john princess startrek canada 43 george johnny mercedes sierra blazer 44 sexy gandalf 5150 leather c#mming 45 andrew spanky doggie 232323 hunting 46 charlie winter zzzzzz 4444 kitty 47 superman brandy gunner beavis rainbow 48 a#shole compaq horney bigc#ck 112233 49 f#ckyou carlos bubba happy arthur 50 dallas tennis 2112 sophie cream 51 jessica james fred ladies calvin 52 panties mike johnson naughty shaved 53 pepper brandon xxxxx giants surfer 54 1111 fender tits booty samson 55 austin anthony member blonde kelly 56 william blowme boobs f#cked paul 57 daniel ferrari donald golden mine 58 golfer cookie bigdaddy 0 king 59 summer chicken bronco fire racing 60 heather maverick penis sandra 5555 61 hammer chicago voyager pookie eagle 62 yankees joseph rangers packers hentai 63 joshua diablo birdie einstein newyork 64 maggie sexsex trouble dolphins little 65 biteme hardcore white 0 redwings 66 enter 666666 topgun chevy smith 67 ashley willie bigtits winston sticky 68 thunder welcome bitches warrior cocacola 69 cowboy chris green sammy animal 70 silver panther super slut broncos 71 richard yamaha qazwsx 8675309 private 72 f#cker justin magic zxcvbnm skippy 73 orange banana lakers nipples marvin 74 merlin driver rachel power blondes 75 michelle marine slayer victoria enjoy 76 corvette angels scott asdfgh girl 77 bigdog fishing 2222 vagina apollo 78 cheese david asdf toyota parker 79 matthew maddog video travis qwert 80 121212 hooters london hotdog time 81 patrick wilson 7777 paris sydney 82 martin butthead marlboro rock women 83 freedom dennis srinivas xxxx voodoo 84 ginger f#cking internet extreme magnum 85 bl#wjob captain action redskins juice 86 nicole bigdick carter erotic abgrtyu 87 sparky chester jasper dirty 777777 88 yellow smokey monster ford dreams 89 camaro xavier teresa freddy maxwell 90 secret steven jeremy arsenal music 91 dick viking 11111111 access14 rush2112 92 falcon snoopy bill wolf russia 93 taylor blue crystal nipple scorpion 94 111111 eagles peter iloveyou rebecca 95 131313 winner p#ssies alex tester 96 123123 samantha c#ck florida mistress 97 bitch house beer eric phantom 98 hello miller rocket legend billy 99 scooter flower theman movie 6666 100 please jack oliver success albert mysql MySQL Mysql Dba dba MySQLTuner-perl-1.6.0/build/000077500000000000000000000000001257644520500155525ustar00rootroot00000000000000MySQLTuner-perl-1.6.0/build/build_rpm.sh000077500000000000000000000014101257644520500200620ustar00rootroot00000000000000#!/bin/sh BUILD_DIR=`dirname $(readlink -f $0)` VERSION=$(grep -Ei 'my \$tunerversion' $BUILD_DIR/../mysqltuner.pl | grep = | cut -d\" -f2) cd $BUILD_DIR sh ./clean.sh perl -pe "s/%VERSION%/$VERSION/g" mysqltuner.spec.tpl > mysqltuner.spec mkdir -p $BUILD_DIR/mysqltuner-$VERSION cp $BUILD_DIR/../mysqltuner.pl mysqltuner.spec $BUILD_DIR/../LICENSE $BUILD_DIR/../basic_passwords.txt $BUILD_DIR/mysqltuner-$VERSION pod2man $BUILD_DIR/../mysqltuner.pl | gzip > $BUILD_DIR/mysqltuner-$VERSION/mysqltuner.1.gz tar czf $BUILD_DIR/mysqltuner-${VERSION}.tgz mysqltuner-$VERSION rpmbuild -ta mysqltuner-${VERSION}.tgz 2>&1 | tee -a ./build.log set -x grep --color=never -E '^Wrote:' $BUILD_DIR/build.log | cut -d: -f2 | xargs -I{} mv {} . #rm -rf mysqltuner-$VERSION ./build.log MySQLTuner-perl-1.6.0/build/clean.sh000077500000000000000000000000651257644520500171740ustar00rootroot00000000000000#!/bin/sh rm -rf mysqltuner-* mysqltuner.spec *.log MySQLTuner-perl-1.6.0/build/mysqltuner.spec.tpl000066400000000000000000000030501257644520500214450ustar00rootroot00000000000000Summary: High Performance MySQL Tuning Script Name: mysqltuner Version: %VERSION% Release: 1 License: GPL v3+ Group: Applications Source0: https://github.com/build/MySQLTuner-perl/build/%{name}-%{version}.tgz URL: https://github.com/major/MySQLTuner-perl Requires: mysql BuildArch: noarch BuildRoot: %{tmpdir}/%{name}-%{version}-root-%(id -u -n) %description MySQLTuner is a high-performance MySQL tuning script written in Perl that will provide you with a snapshot of a MySQL server's health. Based on the statistics gathered, specific recommendations will be provided that will increase a MySQL server's efficiency and performance. The script gives you automated MySQL tuning that is on the level of what you would receive from a MySQL DBA. This script has been derived from many of the ideas in Matthew Montgomery's MySQL tuning primer script. %prep %setup -q %install rm -rf $RPM_BUILD_ROOT install -d $RPM_BUILD_ROOT%{_bindir} install -d $RPM_BUILD_ROOT%{_datarootdir} install -d $RPM_BUILD_ROOT/%{_mandir}/man1 install -p %{name}.pl $RPM_BUILD_ROOT%{_bindir}/%{name} install -d $RPM_BUILD_ROOT%{_datarootdir}/%{name} install -p LICENSE $RPM_BUILD_ROOT%{_datarootdir}/%{name} install -p basic_passwords.txt $RPM_BUILD_ROOT%{_datarootdir}/%{name} install -p %{name}.1.gz $RPM_BUILD_ROOT/%{_mandir}/man1 %clean rm -rf $RPM_BUILD_ROOT %files %defattr(644,root,root,755) %doc %{_datarootdir}/%{name} %attr(755,root,root) %{_bindir}/%{name} %{_mandir}/man1/* %changelog * Thu Jun 18 2015 Jean-Marie RENOUARD %VERSION%-1 - Initial RPM release MySQLTuner-perl-1.6.0/mysqltuner.pl000077500000000000000000003475071257644520500172560ustar00rootroot00000000000000#!/usr/bin/env perl # mysqltuner.pl - Version 1.6.0 # High Performance MySQL Tuning Script # Copyright (C) 2006-2015 Major Hayden - major@mhtx.net # # For the latest updates, please visit http://mysqltuner.com/ # Git repository available at http://github.com/major/MySQLTuner-perl # # This program is free software: you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation, either version 3 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program. If not, see . # # This project would not be possible without help from: # Matthew Montgomery Paul Kehrer Dave Burgess # Jonathan Hinds Mike Jackson Nils Breunese # Shawn Ashlee Luuk Vosslamber Ville Skytta # Trent Hornibrook Jason Gill Mark Imbriaco # Greg Eden Aubin Galinotti Giovanni Bechis # Bill Bradford Ryan Novosielski Michael Scheidell # Blair Christensen Hans du Plooy Victor Trac # Everett Barnes Tom Krouper Gary Barrueto # Simon Greenaway Adam Stein Isart Montane # Baptiste M. Cole Turner Major Hayden # Joe Ashcraft Jean-Marie Renouard # # Inspired by Matthew Montgomery's tuning-primer.sh script: # http://forge.mysql.com/projects/view.php?id=44 # # --------------------------------------------------------------------------- # BEGIN TEXT TEMPLATE MODULE # --------------------------------------------------------------------------- # Text::Template.pm # # Fill in `templates' # # Copyright 2013 M. J. Dominus. # You may copy and distribute this program under the # same terms as Perl itself. # If in doubt, write to mjd-perl-template+@plover.com for a license. # # Version 1.46 package Text::Template; require 5.004; use Exporter; #use no strict; @ISA = qw(Exporter); @EXPORT_OK = qw(fill_in_file fill_in_string TTerror); use vars '$ERROR'; use strict; $Text::Template::VERSION = '1.46'; my %GLOBAL_PREPEND = ('Text::Template' => ''); sub Version { $Text::Template::VERSION; } sub _param { my $kk; my ($k, %h) = @_; for $kk ($k, "\u$k", "\U$k", "-$k", "-\u$k", "-\U$k") { return $h{$kk} if exists $h{$kk}; } return; } sub always_prepend { my $pack = shift; my $old = $GLOBAL_PREPEND{$pack}; $GLOBAL_PREPEND{$pack} = shift; $old; } { my %LEGAL_TYPE; BEGIN { %LEGAL_TYPE = map {$_=>1} qw(FILE FILEHANDLE STRING ARRAY); } sub new { my $pack = shift; my %a = @_; my $stype = uc(_param('type', %a) || "FILE"); my $source = _param('source', %a); my $untaint = _param('untaint', %a); my $prepend = _param('prepend', %a); my $alt_delim = _param('delimiters', %a); my $broken = _param('broken', %a); unless (defined $source) { require Carp; Carp::croak("Usage: $ {pack}::new(TYPE => ..., SOURCE => ...)"); } unless ($LEGAL_TYPE{$stype}) { require Carp; Carp::croak("Illegal value `$stype' for TYPE parameter"); } my $self = {TYPE => $stype, PREPEND => $prepend, UNTAINT => $untaint, BROKEN => $broken, (defined $alt_delim ? (DELIM => $alt_delim) : ()), }; # Under 5.005_03, if any of $stype, $prepend, $untaint, or $broken # are tainted, all the others become tainted too as a result of # sharing the expression with them. We install $source separately # to prevent it from acquiring a spurious taint. $self->{SOURCE} = $source; bless $self => $pack; return unless $self->_acquire_data; $self; } } # Convert template objects of various types to type STRING, # in which the template data is embedded in the object itself. sub _acquire_data { my ($self) = @_; my $type = $self->{TYPE}; if ($type eq 'STRING') { # nothing necessary } elsif ($type eq 'FILE') { my $data = _load_text($self->{SOURCE}); unless (defined $data) { # _load_text already set $ERROR return undef; } if ($self->{UNTAINT} && _is_clean($self->{SOURCE})) { _unconditionally_untaint($data); } $self->{TYPE} = 'STRING'; $self->{FILENAME} = $self->{SOURCE}; $self->{SOURCE} = $data; } elsif ($type eq 'ARRAY') { $self->{TYPE} = 'STRING'; $self->{SOURCE} = join '', @{$self->{SOURCE}}; } elsif ($type eq 'FILEHANDLE') { $self->{TYPE} = 'STRING'; local $/; my $fh = $self->{SOURCE}; my $data = <$fh>; # Extra assignment avoids bug in Solaris perl5.00[45]. if ($self->{UNTAINT}) { _unconditionally_untaint($data); } $self->{SOURCE} = $data; } else { # This should have been caught long ago, so it represents a # drastic `can't-happen' sort of failure my $pack = ref $self; die "Can only acquire data for $pack objects of subtype STRING, but this is $type; aborting"; } $self->{DATA_ACQUIRED} = 1; } sub source { my ($self) = @_; $self->_acquire_data unless $self->{DATA_ACQUIRED}; return $self->{SOURCE}; } sub set_source_data { my ($self, $newdata) = @_; $self->{SOURCE} = $newdata; $self->{DATA_ACQUIRED} = 1; $self->{TYPE} = 'STRING'; 1; } sub compile { my $self = shift; return 1 if $self->{TYPE} eq 'PREPARSED'; return undef unless $self->_acquire_data; unless ($self->{TYPE} eq 'STRING') { my $pack = ref $self; # This should have been caught long ago, so it represents a # drastic `can't-happen' sort of failure die "Can only compile $pack objects of subtype STRING, but this is $self->{TYPE}; aborting"; } my @tokens; my $delim_pats = shift() || $self->{DELIM}; my ($t_open, $t_close) = ('{', '}'); my $DELIM; # Regex matches a delimiter if $delim_pats if (defined $delim_pats) { ($t_open, $t_close) = @$delim_pats; $DELIM = "(?:(?:\Q$t_open\E)|(?:\Q$t_close\E))"; @tokens = split /($DELIM|\n)/, $self->{SOURCE}; } else { @tokens = split /(\\\\(?=\\*[{}])|\\[{}]|[{}\n])/, $self->{SOURCE}; } my $state = 'TEXT'; my $depth = 0; my $lineno = 1; my @content; my $cur_item = ''; my $prog_start; while (@tokens) { my $t = shift @tokens; next if $t eq ''; if ($t eq $t_open) { # Brace or other opening delimiter if ($depth == 0) { push @content, [$state, $cur_item, $lineno] if $cur_item ne ''; $cur_item = ''; $state = 'PROG'; $prog_start = $lineno; } else { $cur_item .= $t; } $depth++; } elsif ($t eq $t_close) { # Brace or other closing delimiter $depth--; if ($depth < 0) { $ERROR = "Unmatched close brace at line $lineno"; return undef; } elsif ($depth == 0) { push @content, [$state, $cur_item, $prog_start] if $cur_item ne ''; $state = 'TEXT'; $cur_item = ''; } else { $cur_item .= $t; } } elsif (!$delim_pats && $t eq '\\\\') { # precedes \\\..\\\{ or \\\..\\\} $cur_item .= '\\'; } elsif (!$delim_pats && $t =~ /^\\([{}])$/) { # Escaped (literal) brace? $cur_item .= $1; } elsif ($t eq "\n") { # Newline $lineno++; $cur_item .= $t; } else { # Anything else $cur_item .= $t; } } if ($state eq 'PROG') { $ERROR = "End of data inside program text that began at line $prog_start"; return undef; } elsif ($state eq 'TEXT') { push @content, [$state, $cur_item, $lineno] if $cur_item ne ''; } else { die "Can't happen error #1"; } $self->{TYPE} = 'PREPARSED'; $self->{SOURCE} = \@content; 1; } sub prepend_text { my ($self) = @_; my $t = $self->{PREPEND}; unless (defined $t) { $t = $GLOBAL_PREPEND{ref $self}; unless (defined $t) { $t = $GLOBAL_PREPEND{'Text::Template'}; } } $self->{PREPEND} = $_[1] if $#_ >= 1; return $t; } sub fill_in { my $fi_self = shift; my %fi_a = @_; unless ($fi_self->{TYPE} eq 'PREPARSED') { my $delims = _param('delimiters', %fi_a); my @delim_arg = (defined $delims ? ($delims) : ()); $fi_self->compile(@delim_arg) or return undef; } my $fi_varhash = _param('hash', %fi_a); my $fi_package = _param('package', %fi_a) ; my $fi_broken = _param('broken', %fi_a) || $fi_self->{BROKEN} || \&_default_broken; my $fi_broken_arg = _param('broken_arg', %fi_a) || []; my $fi_safe = _param('safe', %fi_a); my $fi_ofh = _param('output', %fi_a); my $fi_eval_package; my $fi_scrub_package = 0; my $fi_filename = _param('filename') || $fi_self->{FILENAME} || 'template'; my $fi_prepend = _param('prepend', %fi_a); unless (defined $fi_prepend) { $fi_prepend = $fi_self->prepend_text; } if (defined $fi_safe) { $fi_eval_package = 'main'; } elsif (defined $fi_package) { $fi_eval_package = $fi_package; } elsif (defined $fi_varhash) { $fi_eval_package = _gensym(); $fi_scrub_package = 1; } else { $fi_eval_package = caller; } my $fi_install_package; if (defined $fi_varhash) { if (defined $fi_package) { $fi_install_package = $fi_package; } elsif (defined $fi_safe) { $fi_install_package = $fi_safe->root; } else { $fi_install_package = $fi_eval_package; # The gensymmed one } _install_hash($fi_varhash => $fi_install_package); } if (defined $fi_package && defined $fi_safe) { no strict 'refs'; # Big fat magic here: Fix it so that the user-specified package # is the default one available in the safe compartment. *{$fi_safe->root . '::'} = \%{$fi_package . '::'}; # LOD } my $fi_r = ''; my $fi_item; foreach $fi_item (@{$fi_self->{SOURCE}}) { my ($fi_type, $fi_text, $fi_lineno) = @$fi_item; if ($fi_type eq 'TEXT') { $fi_self->append_text_to_output( text => $fi_text, handle => $fi_ofh, out => \$fi_r, type => $fi_type, ); } elsif ($fi_type eq 'PROG') { no strict; my $fi_lcomment = "#line $fi_lineno $fi_filename"; my $fi_progtext = "package $fi_eval_package; $fi_prepend;\n$fi_lcomment\n$fi_text;"; my $fi_res; my $fi_eval_err = ''; if ($fi_safe) { $fi_safe->reval(q{undef $OUT}); $fi_res = $fi_safe->reval($fi_progtext); $fi_eval_err = $@; my $OUT = $fi_safe->reval('$OUT'); $fi_res = $OUT if defined $OUT; } else { my $OUT; $fi_res = eval $fi_progtext; $fi_eval_err = $@; $fi_res = $OUT if defined $OUT; } # If the value of the filled-in text really was undef, # change it to an explicit empty string to avoid undefined # value warnings later. $fi_res = '' unless defined $fi_res; if ($fi_eval_err) { $fi_res = $fi_broken->(text => $fi_text, error => $fi_eval_err, lineno => $fi_lineno, arg => $fi_broken_arg, ); if (defined $fi_res) { $fi_self->append_text_to_output( text => $fi_res, handle => $fi_ofh, out => \$fi_r, type => $fi_type, ); } else { return $fi_res; # Undefined means abort processing } } else { $fi_self->append_text_to_output( text => $fi_res, handle => $fi_ofh, out => \$fi_r, type => $fi_type, ); } } else { die "Can't happen error #2"; } } _scrubpkg($fi_eval_package) if $fi_scrub_package; defined $fi_ofh ? 1 : $fi_r; } sub append_text_to_output { my ($self, %arg) = @_; if (defined $arg{handle}) { print { $arg{handle} } $arg{text}; } else { ${ $arg{out} } .= $arg{text}; } return; } sub fill_this_in { my $pack = shift; my $text = shift; my $templ = $pack->new(TYPE => 'STRING', SOURCE => $text, @_) or return undef; $templ->compile or return undef; my $result = $templ->fill_in(@_); $result; } sub fill_in_string { my $string = shift; my $package = _param('package', @_); push @_, 'package' => scalar(caller) unless defined $package; Text::Template->fill_this_in($string, @_); } sub fill_in_file { my $fn = shift; my $templ = Text::Template->new(TYPE => 'FILE', SOURCE => $fn, @_) or return undef; $templ->compile or return undef; my $text = $templ->fill_in(@_); $text; } sub _default_broken { my %a = @_; my $prog_text = $a{text}; my $err = $a{error}; my $lineno = $a{lineno}; chomp $err; # $err =~ s/\s+at .*//s; "Program fragment delivered error ``$err''"; } sub _load_text { my $fn = shift; local *F; unless (open F, $fn) { $ERROR = "Couldn't open file $fn: $!"; return undef; } local $/; ; } sub _is_clean { my $z; eval { ($z = join('', @_)), eval '#' . substr($z,0,0); 1 } # LOD } sub _unconditionally_untaint { for (@_) { ($_) = /(.*)/s; } } { my $seqno = 0; sub _gensym { __PACKAGE__ . '::GEN' . $seqno++; } sub _scrubpkg { my $s = shift; $s =~ s/^Text::Template:://; no strict 'refs'; my $hash = $Text::Template::{$s."::"}; foreach my $key (keys %$hash) { undef $hash->{$key}; } } } # Given a hashful of variables (or a list of such hashes) # install the variables into the specified package, # overwriting whatever variables were there before. sub _install_hash { my $hashlist = shift; my $dest = shift; if (UNIVERSAL::isa($hashlist, 'HASH')) { $hashlist = [$hashlist]; } my $hash; foreach $hash (@$hashlist) { my $name; foreach $name (keys %$hash) { my $val = $hash->{$name}; no strict 'refs'; local *SYM = *{"$ {dest}::$name"}; if (! defined $val) { delete ${"$ {dest}::"}{$name}; } elsif (ref $val) { *SYM = $val; } else { *SYM = \$val; } } } } sub TTerror { $ERROR } 1; # --------------------------------------------------------------------------- # END TEXT TEMPLATE MODULE # --------------------------------------------------------------------------- package main; use strict; use warnings; use diagnostics; use File::Spec; use Getopt::Long; use File::Basename; use Cwd 'abs_path'; # Set up a few variables for use in the script my $tunerversion = "1.6.0"; my ( @adjvars, @generalrec ); # Set defaults my %opt = ( "silent" => 0, "nobad" => 0, "nogood" => 0, "noinfo" => 0, "debug" => 0, "nocolor" => 0, "forcemem" => 0, "forceswap" => 0, "host" => 0, "socket" => 0, "port" => 0, "user" => 0, "pass" => 0, "skipsize" => 0, "checkversion" => 0, "buffers" => 0, "passwordfile" => 0, "outputfile" => 0, "dbstat" => 0, "idxstat" => 0, "skippassword" => 0, "noask" => 0, "template" => 0, "reportfile" => 0 ); # Gather the options from the command line GetOptions( \%opt, 'nobad', 'nogood', 'noinfo', 'debug', 'nocolor', 'forcemem=i', 'forceswap=i', 'host=s', 'socket=s', 'port=i', 'user=s', 'pass=s', 'skipsize', 'checkversion', 'mysqladmin=s', 'mysqlcmd=s', 'help', 'buffers', 'skippassword', 'passwordfile=s', 'outputfile=s', 'silent', 'dbstat', 'idxstat', 'noask', 'template=s', 'reportfile=s' ); if ( defined $opt{'help'} && $opt{'help'} == 1 ) { usage(); } sub usage { # Shown with --help option passed print " MySQLTuner $tunerversion - MySQL High Performance Tuning Script\n" . " Bug reports, feature requests, and downloads at http://mysqltuner.com/\n" . " Maintained by Major Hayden (major\@mhtx.net) - Licensed under GPL\n" . "\n" . " Important Usage Guidelines:\n" . " To run the script with the default options, run the script without arguments\n" . " Allow MySQL server to run for at least 24-48 hours before trusting suggestions\n" . " Some routines may require root level privileges (script will provide warnings)\n" . " You must provide the remote server's total memory when connecting to other servers\n" . "\n" . " Connection and Authentication\n" . " --host Connect to a remote host to perform tests (default: localhost)\n" . " --socket Use a different socket for a local connection\n" . " --port Port to use for connection (default: 3306)\n" . " --user Username to use for authentication\n" . " --pass Password to use for authentication\n" . " --mysqladmin Path to a custom mysqladmin executable\n" . " --mysqlcmd Path to a custom mysql executable\n" . "\n" . " --noask Dont ask password if needed\n" . "\n" . " Performance and Reporting Options\n" . " --skipsize Don't enumerate tables and their types/sizes (default: on)\n" . " (Recommended for servers with many tables)\n" . " --skippassword Don't perform checks on user passwords(default: off)\n" . " --checkversion Check for updates to MySQLTuner (default: don't check)\n" . " --forcemem Amount of RAM installed in megabytes\n" . " --forceswap Amount of swap memory configured in megabytes\n" . " --passwordfile Path to a password file list(one password by line)\n" . " Output Options:\n" . " --silent Don't output anything on screen\n" . " --nogood Remove OK responses\n" . " --nobad Remove negative/suggestion responses\n" . " --noinfo Remove informational responses\n" . " --debug Print debug information\n" . " --dbstat Print database information\n" . " --idxstat Print index information\n" . " --nocolor Don't print output in color\n" . " --buffers Print global and per-thread buffer values\n" . " --outputfile Path to a output txt file\n" . "\n" . " --reportfile Path to a report txt file\n" . "\n" . " --template Path to a template file\n" . "\n"; exit 0; } my $devnull = File::Spec->devnull(); my $basic_password_files = ( $opt{passwordfile} eq "0" ) ? abs_path( dirname(__FILE__) ) . "/basic_passwords.txt" : abs_path( $opt{passwordfile} ); # for RPM distributions $basic_password_files = "/usr/share/mysqltuner/basic_passwords.txt" unless -f "$basic_password_files"; # my $outputfile = undef; $outputfile = abs_path( $opt{outputfile} ) unless $opt{outputfile} eq "0"; my $fh = undef; open( $fh, '>', $outputfile ) or die("Fail opening $outputfile") if defined($outputfile); $opt{nocolor} = 1 if defined($outputfile); # Setting up the colors for the print styles my $good = ( $opt{nocolor} == 0 ) ? "[\e[0;32mOK\e[0m]" : "[OK]"; my $bad = ( $opt{nocolor} == 0 ) ? "[\e[0;31m!!\e[0m]" : "[!!]"; my $info = ( $opt{nocolor} == 0 ) ? "[\e[0;34m--\e[0m]" : "[--]"; my $deb = ( $opt{nocolor} == 0 ) ? "[\e[0;31mDG\e[0m]" : "[DG]"; # Super sturucture containing all informations my %result; # Functions that handle the print styles sub prettyprint { print $_[0] . "\n" unless $opt{'silent'}; print $fh $_[0] . "\n" if defined($fh); } sub goodprint { prettyprint $good. " " . $_[0] unless ( $opt{nogood} == 1 ); } sub infoprint { prettyprint $info. " " . $_[0] unless ( $opt{noinfo} == 1 ); } sub badprint { prettyprint $bad. " " . $_[0] unless ( $opt{nobad} == 1 ); } sub debugprint { prettyprint $deb. " " . $_[0] unless ( $opt{debug} == 0 ); } sub redwrap { return ( $opt{nocolor} == 0 ) ? "\e[0;31m" . $_[0] . "\e[0m" : $_[0]; } sub greenwrap { return ( $opt{nocolor} == 0 ) ? "\e[0;32m" . $_[0] . "\e[0m" : $_[0]; } # Calculates the parameter passed in bytes, and then rounds it to one decimal place sub hr_bytes { my $num = shift; if ( $num >= ( 1024**3 ) ) { #GB return sprintf( "%.1f", ( $num / ( 1024**3 ) ) ) . "G"; } elsif ( $num >= ( 1024**2 ) ) { #MB return sprintf( "%.1f", ( $num / ( 1024**2 ) ) ) . "M"; } elsif ( $num >= 1024 ) { #KB return sprintf( "%.1f", ( $num / 1024 ) ) . "K"; } else { return $num . "B"; } } # Calculates the parameter passed in bytes, and then rounds it to the nearest integer sub hr_bytes_rnd { my $num = shift; if ( $num >= ( 1024**3 ) ) { #GB return int( ( $num / ( 1024**3 ) ) ) . "G"; } elsif ( $num >= ( 1024**2 ) ) { #MB return int( ( $num / ( 1024**2 ) ) ) . "M"; } elsif ( $num >= 1024 ) { #KB return int( ( $num / 1024 ) ) . "K"; } else { return $num . "B"; } } # Calculates the parameter passed to the nearest power of 1000, then rounds it to the nearest integer sub hr_num { my $num = shift; if ( $num >= ( 1000**3 ) ) { # Billions return int( ( $num / ( 1000**3 ) ) ) . "B"; } elsif ( $num >= ( 1000**2 ) ) { # Millions return int( ( $num / ( 1000**2 ) ) ) . "M"; } elsif ( $num >= 1000 ) { # Thousands return int( ( $num / 1000 ) ) . "K"; } else { return $num; } } # Calculate Percentage sub percentage { my $value = shift; my $total = shift; $total = 0 unless defined $total; return 100, 00 if $total == 0; return sprintf( "%.2f", ( $value * 100 / $total ) ); } # Calculates uptime to display in a more attractive form sub pretty_uptime { my $uptime = shift; my $seconds = $uptime % 60; my $minutes = int( ( $uptime % 3600 ) / 60 ); my $hours = int( ( $uptime % 86400 ) / (3600) ); my $days = int( $uptime / (86400) ); my $uptimestring; if ( $days > 0 ) { $uptimestring = "${days}d ${hours}h ${minutes}m ${seconds}s"; } elsif ( $hours > 0 ) { $uptimestring = "${hours}h ${minutes}m ${seconds}s"; } elsif ( $minutes > 0 ) { $uptimestring = "${minutes}m ${seconds}s"; } else { $uptimestring = "${seconds}s"; } return $uptimestring; } # Retrieves the memory installed on this machine my ( $physical_memory, $swap_memory, $duflags ); sub os_setup { sub memerror { badprint "Unable to determine total memory/swap; use '--forcemem' and '--forceswap'"; exit 1; } my $os = `uname`; $duflags = ( $os =~ /Linux/ ) ? '-b' : ''; if ( $opt{'forcemem'} > 0 ) { $physical_memory = $opt{'forcemem'} * 1048576; infoprint "Assuming $opt{'forcemem'} MB of physical memory"; if ( $opt{'forceswap'} > 0 ) { $swap_memory = $opt{'forceswap'} * 1048576; infoprint "Assuming $opt{'forceswap'} MB of swap space"; } else { $swap_memory = 0; badprint "Assuming 0 MB of swap space (use --forceswap to specify)"; } } else { if ( $os =~ /Linux/ ) { $physical_memory = `grep -i memtotal: /proc/meminfo | awk '{print \$2}'` or memerror; $physical_memory *= 1024; $swap_memory = `grep -i swaptotal: /proc/meminfo | awk '{print \$2}'` or memerror; $swap_memory *= 1024; } elsif ( $os =~ /Darwin/ ) { $physical_memory = `sysctl -n hw.memsize` or memerror; $swap_memory = `sysctl -n vm.swapusage | awk '{print \$3}' | sed 's/\..*\$//'` or memerror; } elsif ( $os =~ /NetBSD|OpenBSD|FreeBSD/ ) { $physical_memory = `sysctl -n hw.physmem` or memerror; if ( $physical_memory < 0 ) { $physical_memory = `sysctl -n hw.physmem64` or memerror; } $swap_memory = `swapctl -l | grep '^/' | awk '{ s+= \$2 } END { print s }'` or memerror; } elsif ( $os =~ /BSD/ ) { $physical_memory = `sysctl -n hw.realmem` or memerror; $swap_memory = `swapinfo | grep '^/' | awk '{ s+= \$2 } END { print s }'`; } elsif ( $os =~ /SunOS/ ) { $physical_memory = `/usr/sbin/prtconf | grep Memory | cut -f 3 -d ' '` or memerror; chomp($physical_memory); $physical_memory = $physical_memory * 1024 * 1024; } elsif ( $os =~ /AIX/ ) { $physical_memory = `lsattr -El sys0 | grep realmem | awk '{print \$2}'` or memerror; chomp($physical_memory); $physical_memory = $physical_memory * 1024; $swap_memory = `lsps -as | awk -F"(MB| +)" '/MB /{print \$2}'` or memerror; chomp($swap_memory); $swap_memory = $swap_memory * 1024 * 1024; } } debugprint "Physical Memory: $physical_memory"; debugprint "Swap Memory: $swap_memory"; chomp($physical_memory); chomp($swap_memory); chomp($os); $result{'OS'}{'OS Type'} = $os; $result{'OS'}{'Physical Memory'}{'bytes'} = $physical_memory; $result{'OS'}{'Physical Memory'}{'pretty'} = hr_bytes($physical_memory); $result{'OS'}{'Swap Memory'}{'bytes'} = $swap_memory; $result{'OS'}{'Swap Memory'}{'pretty'} = hr_bytes($swap_memory); } # Checks for updates to MySQLTuner sub validate_tuner_version { if ($opt{checkversion} eq 0) { infoprint "Skipped version check for MySQLTuner script"; return; } my $update; my $url = "https://raw.githubusercontent.com/major/MySQLTuner-perl/master/mysqltuner.pl"; my $httpcli=`which curl`; chomp($httpcli); if ( 1 != 1 and defined($httpcli) and -e "$httpcli" ) { debugprint "$httpcli is available."; debugprint "$httpcli --connect-timeout 5 -silent '$url' 2>/dev/null | grep 'my \$tunerversion'| cut -d\\\" -f2"; $update = `$httpcli --connect-timeout 5 -silent '$url' 2>/dev/null | grep 'my \$tunerversion'| cut -d\\\" -f2`; chomp($update); debugprint "VERSION: $update"; compare_tuner_version($update); return; } $httpcli=`which wget`; chomp($httpcli); if ( defined($httpcli) and -e "$httpcli" ) { debugprint "$httpcli is available."; debugprint "$httpcli -e timestamping=off -T 5 -O - '$url' 2>$devnull| grep 'my \$tunerversion'| cut -d\\\" -f2"; $update = `$httpcli -e timestamping=off -T 5 -O - '$url' 2>$devnull| grep 'my \$tunerversion'| cut -d\\\" -f2`; chomp($update); compare_tuner_version($update); return; } debugprint "curl and wget are not avalaible."; infoprint "Unable to check for the latest MySQLTuner version"; } sub compare_tuner_version { my $remoteversion=shift; debugprint "Remote data: $remoteversion"; #exit 0; if ($remoteversion ne $tunerversion) { badprint "There is a new version of MySQLTuner available ($remoteversion)"; return; } goodprint "You have the latest version of MySQLTuner($tunerversion)"; return; } # Checks to see if a MySQL login is possible my ( $mysqllogin, $doremote, $remotestring, $mysqlcmd, $mysqladmincmd ); sub mysql_setup { $doremote = 0; $remotestring = ''; if ( $opt{mysqladmin} ) { $mysqladmincmd = $opt{mysqladmin}; } else { $mysqladmincmd = `which mysqladmin`; } chomp($mysqladmincmd); if ( !-e $mysqladmincmd && $opt{mysqladmin} ) { badprint "Unable to find the mysqladmin command you specified: " . $mysqladmincmd . ""; exit 1; } elsif ( !-e $mysqladmincmd ) { badprint "Couldn't find mysqladmin in your \$PATH. Is MySQL installed?"; exit 1; } if ( $opt{mysqlcmd} ) { $mysqlcmd = $opt{mysqlcmd}; } else { $mysqlcmd = `which mysql`; } chomp($mysqlcmd); if ( !-e $mysqlcmd && $opt{mysqlcmd} ) { badprint "Unable to find the mysql command you specified: " . $mysqlcmd . ""; exit 1; } elsif ( !-e $mysqlcmd ) { badprint "Couldn't find mysql in your \$PATH. Is MySQL installed?"; exit 1; } $mysqlcmd =~ s/\n$//g; my $mysqlclidefaults=`$mysqlcmd --print-defaults`; debugprint "MySQL Client: $mysqlclidefaults"; if ( $mysqlclidefaults=~/auto-vertical-output/ ) { badprint "Avoid auto-vertical-output in configuration file(s) for MySQL like"; exit 1; } debugprint "MySQL Client: $mysqlcmd"; # Are we being asked to connect via a socket? if ( $opt{socket} ne 0 ) { $remotestring = " -S $opt{socket}"; } # Are we being asked to connect to a remote server? if ( $opt{host} ne 0 ) { chomp( $opt{host} ); $opt{port} = ( $opt{port} eq 0 ) ? 3306 : $opt{port}; # If we're doing a remote connection, but forcemem wasn't specified, we need to exit if ( $opt{'forcemem'} eq 0 ) { badprint "The --forcemem option is required for remote connections"; exit 1; } infoprint "Performing tests on $opt{host}:$opt{port}"; $remotestring = " -h $opt{host} -P $opt{port}"; $doremote = 1; } # Did we already get a username and password passed on the command line? if ( $opt{user} ne 0 and $opt{pass} ne 0 ) { $mysqllogin = "-u $opt{user} -p'$opt{pass}'" . $remotestring; my $loginstatus = `$mysqladmincmd ping $mysqllogin 2>&1`; if ( $loginstatus =~ /mysqld is alive/ ) { goodprint "Logged in using credentials passed on the command line"; return 1; } else { badprint "Attempted to use login credentials, but they were invalid"; exit 1; } } my $svcprop = `which svcprop 2>/dev/null`; if ( substr( $svcprop, 0, 1 ) =~ "/" ) { # We are on solaris ( my $mysql_login = `svcprop -p quickbackup/username svc:/network/mysql-quickbackup:default` ) =~ s/\s+$//; ( my $mysql_pass = `svcprop -p quickbackup/password svc:/network/mysql-quickbackup:default` ) =~ s/\s+$//; if ( substr( $mysql_login, 0, 7 ) ne "svcprop" ) { # mysql-quickbackup is installed $mysqllogin = "-u $mysql_login -p$mysql_pass"; my $loginstatus = `mysqladmin $mysqllogin ping 2>&1`; if ( $loginstatus =~ /mysqld is alive/ ) { goodprint "Logged in using credentials from mysql-quickbackup."; return 1; } else { badprint "Attempted to use login credentials from mysql-quickbackup, but they failed."; exit 1; } } } elsif ( -r "/etc/psa/.psa.shadow" and $doremote == 0 ) { # It's a Plesk box, use the available credentials $mysqllogin = "-u admin -p`cat /etc/psa/.psa.shadow`"; my $loginstatus = `$mysqladmincmd ping $mysqllogin 2>&1`; unless ( $loginstatus =~ /mysqld is alive/ ) { badprint "Attempted to use login credentials from Plesk, but they failed."; exit 1; } } elsif ( -r "/usr/local/directadmin/conf/mysql.conf" and $doremote == 0 ) { # It's a DirectAdmin box, use the available credentials my $mysqluser = `cat /usr/local/directadmin/conf/mysql.conf | egrep '^user=.*'`; my $mysqlpass = `cat /usr/local/directadmin/conf/mysql.conf | egrep '^passwd=.*'`; $mysqluser =~ s/user=//; $mysqluser =~ s/[\r\n]//; $mysqlpass =~ s/passwd=//; $mysqlpass =~ s/[\r\n]//; $mysqllogin = "-u $mysqluser -p$mysqlpass"; my $loginstatus = `mysqladmin ping $mysqllogin 2>&1`; unless ( $loginstatus =~ /mysqld is alive/ ) { badprint "Attempted to use login credentials from DirectAdmin, but they failed."; exit 1; } } elsif ( -r "/etc/mysql/debian.cnf" and $doremote == 0 ) { # We have a debian maintenance account, use it $mysqllogin = "--defaults-file=/etc/mysql/debian.cnf"; my $loginstatus = `$mysqladmincmd $mysqllogin ping 2>&1`; if ( $loginstatus =~ /mysqld is alive/ ) { goodprint "Logged in using credentials from debian maintenance account."; return 1; } else { badprint "Attempted to use login credentials from debian maintenance account, but they failed."; exit 1; } } else { # It's not Plesk or debian, we should try a login debugprint "$mysqladmincmd $remotestring ping 2>&1"; my $loginstatus = `$mysqladmincmd $remotestring ping 2>&1`; if ( $loginstatus =~ /mysqld is alive/ ) { # Login went just fine $mysqllogin = " $remotestring "; # Did this go well because of a .my.cnf file or is there no password set? my $userpath = `printenv HOME`; if ( length($userpath) > 0 ) { chomp($userpath); } unless ( -e "${userpath}/.my.cnf" or -e "${userpath}/.mylogin.cnf" ) { badprint "Successfully authenticated with no password - SECURITY RISK!"; } return 1; } else { if ( $opt{'noask'}==1 ) { badprint "Attempted to use login credentials, but they were invalid"; exit 1; } print STDERR "Please enter your MySQL administrative login: "; my $name = <>; print STDERR "Please enter your MySQL administrative password: "; system("stty -echo >$devnull 2>&1"); my $password = <>; system("stty echo >$devnull 2>&1"); chomp($password); chomp($name); $mysqllogin = "-u $name"; if ( length($password) > 0 ) { $mysqllogin .= " -p'$password'"; } $mysqllogin .= $remotestring; my $loginstatus = `$mysqladmincmd ping $mysqllogin 2>&1`; if ( $loginstatus =~ /mysqld is alive/ ) { print STDERR ""; if ( !length($password) ) { # Did this go well because of a .my.cnf file or is there no password set? my $userpath = `ls -d ~`; chomp($userpath); unless ( -e "$userpath/.my.cnf" ) { badprint "Successfully authenticated with no password - SECURITY RISK!"; } } return 1; } else { badprint " Attempted to use login credentials, but they were invalid."; exit 1; } exit 1; } } } # MySQL Request Array sub select_array { my $req = shift; debugprint "PERFORM: $req "; my @result = `$mysqlcmd $mysqllogin -Bse "$req"`; chomp(@result); return @result; } # MySQL Request one sub select_one { my $req = shift; debugprint "PERFORM: $req "; my $result = `$mysqlcmd $mysqllogin -Bse "$req"`; chomp($result); return $result; } sub get_tuning_info { my @infoconn = select_array "\\s"; my ( $tkey, $tval ); @infoconn = grep { !/Threads:/ and !/Connection id:/ and !/pager:/ and !/Using/ } @infoconn; foreach my $line (@infoconn) { if ( $line =~ /\s*(.*):\s*(.*)/ ) { debugprint "$1 => $2"; $tkey = $1; $tval = $2; chomp($tkey); chomp($tval); $result{'MySQL Client'}{$tkey} = $tval; } } $result{'MySQL Client'}{'Client Path'} = $mysqlcmd; $result{'MySQL Client'}{'Admin Path'} = $mysqladmincmd; $result{'MySQL Client'}{'Authentication Info'} = $mysqllogin; } # Populates all of the variable and status hashes my ( %mystat, %myvar, $dummyselect, %myrepl, %myslaves ); sub get_all_vars { # We need to initiate at least one query so that our data is useable $dummyselect = select_one "SELECT VERSION()"; debugprint "VERSION: " . $dummyselect . ""; $result{'MySQL Client'}{'Version'} = $dummyselect; my @mysqlvarlist = select_array "SHOW /*!50000 GLOBAL */ VARIABLES"; foreach my $line (@mysqlvarlist) { $line =~ /([a-zA-Z_]*)\s*(.*)/; $myvar{$1} = $2; $result{'Variables'}{$1} = $2; debugprint "V: $1 = $2"; } my @mysqlstatlist = select_array "SHOW /*!50000 GLOBAL */ STATUS"; foreach my $line (@mysqlstatlist) { $line =~ /([a-zA-Z_]*)\s*(.*)/; $mystat{$1} = $2; $result{'Status'}{$1} = $2; debugprint "S: $1 = $2"; } # Workaround for MySQL bug #59393 wrt. ignore-builtin-innodb if ( ( $myvar{'ignore_builtin_innodb'} || "" ) eq "ON" ) { $myvar{'have_innodb'} = "NO"; } # have_* for engines is deprecated and will be removed in MySQL 5.6; # check SHOW ENGINES and set corresponding old style variables. # Also works around MySQL bug #59393 wrt. skip-innodb my @mysqlenginelist = select_array "SHOW ENGINES"; foreach my $line (@mysqlenginelist) { if ( $line =~ /^([a-zA-Z_]+)\s+(\S+)/ ) { my $engine = lc($1); if ( $engine eq "federated" || $engine eq "blackhole" ) { $engine .= "_engine"; } elsif ( $engine eq "berkeleydb" ) { $engine = "bdb"; } my $val = ( $2 eq "DEFAULT" ) ? "YES" : $2; $myvar{"have_$engine"} = $val; $result{'Storage Engines'}{$engine} = $2; } } my @mysqlslave = select_array "SHOW SLAVE STATUS\\G"; foreach my $line (@mysqlslave) { if ( $line =~ /\s*(.*):\s*(.*)/ ) { debugprint "$1 => $2"; $myrepl{"$1"} = $2; $result{'Replication'}{'Status'}{$1} = $2; } } #print Dumper(%myrepl); #exit 0; my @mysqlslaves = select_array "SHOW SLAVE HOSTS"; my @lineitems = (); foreach my $line (@mysqlslaves) { debugprint "L: $line "; @lineitems = split /\s+/, $line; $myslaves{ $lineitems[0] } = $line; $result{'Replication'}{'Slaves'}{ $lineitems[0] } = $lineitems[4]; } } sub get_basic_passwords { my $file = shift; open( FH, "< $file" ) or die "Can't open $file for read: $!"; my @lines = ; close FH or die "Cannot close $file: $!"; return @lines; } sub security_recommendations { prettyprint "\n-------- Security Recommendations -------------------------------------------"; if ( $opt{skippassword} eq 1 ) { infoprint "Skipped due to --skippassword option"; return; } # Looking for Anonymous users my @mysqlstatlist = select_array "SELECT CONCAT(user, '\@', host) FROM mysql.user WHERE TRIM(USER) = '' OR USER IS NULL"; if (@mysqlstatlist) { foreach my $line ( sort @mysqlstatlist ) { chomp($line); badprint "User '" . $line . "' is an anonymous account."; } push( @generalrec, "Remove Anonymous User accounts - there are " . scalar(@mysqlstatlist) . " Anonymous accounts." ); } else { goodprint "There is no anonymous account in all database users"; } # Looking for Empty Password @mysqlstatlist = select_array "SELECT CONCAT(user, '\@', host) FROM mysql.user WHERE password = '' OR password IS NULL"; if (@mysqlstatlist) { foreach my $line ( sort @mysqlstatlist ) { chomp($line); badprint "User '" . $line . "' has no password set."; } push( @generalrec, "Set up a Password for user with the following SQL statement ( SET PASSWORD FOR 'user'\@'SpecificDNSorIp' = PASSWORD('secure_password'); )" ); } else { goodprint "All database users have passwords assigned"; } # Looking for User with user/ uppercase /capitalise user as password @mysqlstatlist = select_array "SELECT CONCAT(user, '\@', host) FROM mysql.user WHERE CAST(password as Binary) = PASSWORD(user) OR CAST(password as Binary) = PASSWORD(UPPER(user)) OR CAST(password as Binary) = PASSWORD(UPPER(LEFT(User, 1)) + SUBSTRING(User, 2, LENGTH(User)))"; if (@mysqlstatlist) { foreach my $line ( sort @mysqlstatlist ) { chomp($line); badprint "User '" . $line . "' has user name as password."; } push( @generalrec, "Set up a Secure Password for user\@host ( SET PASSWORD FOR 'user'\@'SpecificDNSorIp' = PASSWORD('secure_password'); )" ); } @mysqlstatlist = select_array "SELECT CONCAT(user, '\@', host) FROM mysql.user WHERE HOST='%'"; if (@mysqlstatlist) { foreach my $line ( sort @mysqlstatlist ) { chomp($line); badprint "User '" . $line . "' hasn't specific host restriction."; } push( @generalrec, "Restrict Host for user\@% to user\@SpecificDNSorIp" ); } unless ( -f $basic_password_files ) { badprint "There is not basic password file list !"; return; } my @passwords = get_basic_passwords $basic_password_files; infoprint "There is " . scalar(@passwords) . " basic passwords in the list."; my $nbins = 0; my $passreq; if (@passwords) { foreach my $pass (@passwords) { $pass =~ s/\s//g; chomp($pass); # Looking for User with user/ uppercase /capitalise weak password @mysqlstatlist = select_array "SELECT CONCAT(user, '\@', host) FROM mysql.user WHERE password = PASSWORD('" . $pass . "') OR password = PASSWORD(UPPER('" . $pass . "')) OR password = PASSWORD(UPPER(LEFT('" . $pass . "', 1)) + SUBSTRING('" . $pass . "', 2, LENGTH('" . $pass . "')))"; debugprint "There is " . scalar(@mysqlstatlist) . " items."; if (@mysqlstatlist) { foreach my $line (@mysqlstatlist) { chomp($line); badprint "User '" . $line . "' is using weak pasword: $pass in a lower, upper or capitalize derivated version."; $nbins++; } } } } if ( $nbins > 0 ) { push( @generalrec, $nbins . " user(s) used basic or weaked password." ); } } sub get_replication_status { prettyprint "\n-------- Replication Metrics -------------------------------------------------"; if ( scalar( keys %myslaves ) == 0 ) { infoprint "No replication slave(s) for this server."; } else { infoprint "This server is acting as master for " . scalar( keys %myslaves ) . " server(s)."; } if ( scalar( keys %myrepl ) == 0 and scalar( keys %myslaves ) == 0 ) { infoprint "This is a standalone server.."; return; } if ( scalar( keys %myrepl ) == 0 ) { infoprint "No replication setup for this server."; return; } my ($io_running) = $myrepl{'Slave_IO_Running'}; debugprint "IO RUNNING: $io_running "; my ($sql_running) = $myrepl{'Slave_SQL_Running'}; debugprint "SQL RUNNING: $sql_running "; my ($seconds_behind_master) = $myrepl{'Seconds_Behind_Master'}; debugprint "SECONDS : $seconds_behind_master "; if ( defined($io_running) and ( $io_running !~ /yes/i or $sql_running !~ /yes/i ) ) { badprint "This replication slave is not running but seems to be configurated."; } if ( defined($io_running) && $io_running =~ /yes/i && $sql_running =~ /yes/i ) { if ( $myvar{'read_only'} eq 'OFF' ) { badprint "This replication slave is running with the read_only option disabled."; } else { goodprint "This replication slave is running with the read_only option enabled."; } if ( $seconds_behind_master > 0 ) { badprint "This replication slave is lagging and slave has $seconds_behind_master second(s) behind master host."; } else { goodprint "This replication slave is uptodate with master."; } } } # Checks for supported or EOL'ed MySQL versions my ( $mysqlvermajor, $mysqlverminor, $mysqlvermicro ); sub validate_mysql_version { ( $mysqlvermajor, $mysqlverminor, $mysqlvermicro ) = $myvar{'version'} =~ /^(\d+)(?:\.(\d+)|)(?:\.(\d+)|)/; $mysqlverminor ||= 0; $mysqlvermicro ||= 0; if ( !mysql_version_ge( 5, 1 ) ) { badprint "Your MySQL version " . $myvar{'version'} . " is EOL software! Upgrade soon!"; } elsif ( ( mysql_version_ge(6) and mysql_version_le(9) ) or mysql_version_ge(12) ) { badprint "Currently running unsupported MySQL version " . $myvar{'version'} . ""; } else { goodprint "Currently running supported MySQL version " . $myvar{'version'} . ""; } } # Checks if MySQL version is greater than equal to (major, minor, micro) sub mysql_version_ge { my ( $maj, $min, $mic ) = @_; $min ||= 0; $mic ||= 0; return $mysqlvermajor > $maj || $mysqlvermajor == $maj && ( $mysqlverminor > $min || $mysqlverminor == $min && $mysqlvermicro >= $mic ); } # Checks if MySQL version is lower than equal to (major, minor, micro) sub mysql_version_le { my ( $maj, $min, $mic ) = @_; $min ||= 0; $mic ||= 0; return $mysqlvermajor < $maj || $mysqlvermajor == $maj && ( $mysqlverminor < $min || $mysqlverminor == $min && $mysqlvermicro <= $mic ); } # Checks for 32-bit boxes with more than 2GB of RAM my ($arch); sub check_architecture { if ( $doremote eq 1 ) { return; } if ( `uname` =~ /SunOS/ && `isainfo -b` =~ /64/ ) { $arch = 64; goodprint "Operating on 64-bit architecture"; } elsif ( `uname` !~ /SunOS/ && `uname -m` =~ /64/ ) { $arch = 64; goodprint "Operating on 64-bit architecture"; } elsif ( `uname` =~ /AIX/ && `bootinfo -K` =~ /64/ ) { $arch = 64; goodprint "Operating on 64-bit architecture"; } elsif ( `uname` =~ /NetBSD|OpenBSD/ && `sysctl -b hw.machine` =~ /64/ ) { $arch = 64; goodprint "Operating on 64-bit architecture"; } elsif ( `uname` =~ /FreeBSD/ && `sysctl -b hw.machine_arch` =~ /64/ ) { $arch = 64; goodprint "Operating on 64-bit architecture"; } elsif ( `uname` =~ /Darwin/ && `uname -m` =~ /Power Macintosh/ ) { # Darwin box.local 9.8.0 Darwin Kernel Version 9.8.0: Wed Jul 15 16:57:01 PDT 2009; root:xnu1228.15.4~1/RELEASE_PPC Power Macintosh $arch = 64; goodprint "Operating on 64-bit architecture"; } elsif ( `uname` =~ /Darwin/ && `uname -m` =~ /x86_64/ ) { # Darwin gibas.local 12.3.0 Darwin Kernel Version 12.3.0: Sun Jan 6 22:37:10 PST 2013; root:xnu-2050.22.13~1/RELEASE_X86_64 x86_64 $arch = 64; goodprint "Operating on 64-bit architecture"; } else { $arch = 32; if ( $physical_memory > 2147483648 ) { badprint "Switch to 64-bit OS - MySQL cannot currently use all of your RAM"; } else { goodprint "Operating on 32-bit architecture with less than 2GB RAM"; } } $result{'OS'}{'Architecture'} = "$arch bits"; } # Start up a ton of storage engine counts/statistics my ( %enginestats, %enginecount, $fragtables ); sub check_storage_engines { if ( $opt{skipsize} eq 1 ) { prettyprint "\n-------- Storage Engine Statistics -------------------------------------------"; infoprint "Skipped due to --skipsize option"; return; } prettyprint "\n-------- Storage Engine Statistics -------------------------------------------"; my $engines; if ( mysql_version_ge( 5, 1, 5 ) ) { my @engineresults = select_array "SELECT ENGINE,SUPPORT FROM information_schema.ENGINES WHERE ENGINE NOT IN ('performance_schema','MyISAM','MERGE','MEMORY') ORDER BY ENGINE ASC"; foreach my $line (@engineresults) { my ( $engine, $engineenabled ); ( $engine, $engineenabled ) = $line =~ /([a-zA-Z_]*)\s+([a-zA-Z]+)/; $result{'Engine'}{$engine}{'Enabled'} = $engineenabled; $engines .= ( $engineenabled eq "YES" || $engineenabled eq "DEFAULT" ) ? greenwrap "+" . $engine . " " : redwrap "-" . $engine . " "; } } else { $engines .= ( defined $myvar{'have_archive'} && $myvar{'have_archive'} eq "YES" ) ? greenwrap "+Archive " : redwrap "-Archive "; $engines .= ( defined $myvar{'have_bdb'} && $myvar{'have_bdb'} eq "YES" ) ? greenwrap "+BDB " : redwrap "-BDB "; $engines .= ( defined $myvar{'have_federated_engine'} && $myvar{'have_federated_engine'} eq "YES" ) ? greenwrap "+Federated " : redwrap "-Federated "; $engines .= ( defined $myvar{'have_innodb'} && $myvar{'have_innodb'} eq "YES" ) ? greenwrap "+InnoDB " : redwrap "-InnoDB "; $engines .= ( defined $myvar{'have_isam'} && $myvar{'have_isam'} eq "YES" ) ? greenwrap "+ISAM " : redwrap "-ISAM "; $engines .= ( defined $myvar{'have_aria'} && $myvar{'have_aria'} eq "YES" ) ? greenwrap "+Aria " : redwrap "-Aria "; $engines .= ( defined $myvar{'have_ndbcluster'} && $myvar{'have_ndbcluster'} eq "YES" ) ? greenwrap "+NDBCluster " : redwrap "-NDBCluster "; } my @dblist = grep {$_ ne 'lost+found' } select_array "SHOW DATABASES"; $result{'Databases'}{'List'} = [@dblist]; infoprint "Status: $engines"; if ( mysql_version_ge( 5, 1, 5 ) ) { # MySQL 5 servers can have table sizes calculated quickly from information schema my @templist = select_array "SELECT ENGINE,SUM(DATA_LENGTH+INDEX_LENGTH),COUNT(ENGINE),SUM(DATA_LENGTH),SUM(INDEX_LENGTH) FROM information_schema.TABLES WHERE TABLE_SCHEMA NOT IN ('information_schema', 'performance_schema', 'mysql') AND ENGINE IS NOT NULL GROUP BY ENGINE ORDER BY ENGINE ASC;"; my ( $engine, $size, $count, $dsize, $isize ); foreach my $line (@templist) { ( $engine, $size, $count, $dsize, $isize ) = $line =~ /([a-zA-Z_]*)\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+)/; if ( !defined($size) ) { next; } $enginestats{$engine} = $size; $enginecount{$engine} = $count; $result{'Engine'}{$engine}{'Table Number'} = $count; $result{'Engine'}{$engine}{'Total Size'} = $size; $result{'Engine'}{$engine}{'Data Size'} = $dsize; $result{'Engine'}{$engine}{'Index Size'} = $isize; } $fragtables = select_one "SELECT COUNT(TABLE_NAME) FROM information_schema.TABLES WHERE TABLE_SCHEMA NOT IN ('information_schema','performance_schema', 'mysql') AND Data_free > 0 AND NOT ENGINE='MEMORY'"; chomp($fragtables); $result{'Tables'}{'Fragmented tables'} = [ select_array "SELECT CONCAT(CONCAT(TABLE_SCHEMA, '.'), TABLE_NAME) FROM information_schema.TABLES WHERE TABLE_SCHEMA NOT IN ('information_schema','performance_schema', 'mysql') AND Data_free > 0 AND NOT ENGINE='MEMORY'" ]; } else { # MySQL < 5 servers take a lot of work to get table sizes my @tblist; # Now we build a database list, and loop through it to get storage engine stats for tables foreach my $db (@dblist) { chomp($db); if ( $db eq "information_schema" or $db eq "performance_schema" or $db eq "mysql" or $db eq "lost+found" ) { next; } my @ixs = ( 1, 6, 9 ); if ( !mysql_version_ge( 4, 1 ) ) { # MySQL 3.23/4.0 keeps Data_Length in the 5th (0-based) column @ixs = ( 1, 5, 8 ); } push( @tblist, map { [ (split)[@ixs] ] } select_array "SHOW TABLE STATUS FROM \\\`$db\\\`" ); } # Parse through the table list to generate storage engine counts/statistics $fragtables = 0; foreach my $tbl (@tblist) { debugprint "Data dump ". Dumper (@$tbl); my ( $engine, $size, $datafree ) = @$tbl; next if $engine eq 'NULL'; $size=0 if $size eq 'NULL'; $datafree=0 if $datafree eq 'NULL'; if ( defined $enginestats{$engine} ) { $enginestats{$engine} += $size; $enginecount{$engine} += 1; } else { $enginestats{$engine} = $size; $enginecount{$engine} = 1; } if ( $datafree > 0 ) { $fragtables++; } } } while ( my ( $engine, $size ) = each(%enginestats) ) { infoprint "Data in $engine tables: " . hr_bytes_rnd($size) . " (Tables: " . $enginecount{$engine} . ")" . ""; } # If the storage engine isn't being used, recommend it to be disabled if ( !defined $enginestats{'InnoDB'} && defined $myvar{'have_innodb'} && $myvar{'have_innodb'} eq "YES" ) { badprint "InnoDB is enabled but isn't being used"; push( @generalrec, "Add skip-innodb to MySQL configuration to disable InnoDB" ); } if ( !defined $enginestats{'BerkeleyDB'} && defined $myvar{'have_bdb'} && $myvar{'have_bdb'} eq "YES" ) { badprint "BDB is enabled but isn't being used"; push( @generalrec, "Add skip-bdb to MySQL configuration to disable BDB" ); } if ( !defined $enginestats{'ISAM'} && defined $myvar{'have_isam'} && $myvar{'have_isam'} eq "YES" ) { badprint "MYISAM is enabled but isn't being used"; push( @generalrec, "Add skip-isam to MySQL configuration to disable ISAM (MySQL > 4.1.0)" ); } # Fragmented tables if ( $fragtables > 0 ) { badprint "Total fragmented tables: $fragtables"; push( @generalrec, "Run OPTIMIZE TABLE to defragment tables for better performance" ); } else { goodprint "Total fragmented tables: $fragtables"; } # Auto increments my %tblist; # Find the maximum integer my $maxint = select_one "SELECT ~0"; $result{'MaxInt'} = $maxint; # Now we use a database list, and loop through it to get storage engine stats for tables foreach my $db (@dblist) { chomp($db); if ( !$tblist{$db} ) { $tblist{$db} = (); } if ( $db eq "information_schema" ) { next; } my @ia = ( 0, 10 ); if ( !mysql_version_ge( 4, 1 ) ) { # MySQL 3.23/4.0 keeps Data_Length in the 5th (0-based) column @ia = ( 0, 9 ); } push( @{ $tblist{$db} }, map { [ (split)[@ia] ] } select_array "SHOW TABLE STATUS FROM \\\`$db\\\`" ); } my @dbnames = keys %tblist; foreach my $db (@dbnames) { foreach my $tbl ( @{ $tblist{$db} } ) { my ( $name, $autoincrement ) = @$tbl; if ( $autoincrement =~ /^\d+?$/ ) { my $percent = percentage( $autoincrement, $maxint ); $result{'PctAutoIncrement'}{"$db.$name"} = $percent; if ( $percent >= 75 ) { badprint "Table '$db.$name' has an autoincrement value near max capacity ($percent%)"; } } } } } my %mycalc; sub calculations { if ( $mystat{'Questions'} < 1 ) { badprint "Your server has not answered any queries - cannot continue..."; exit 2; } # Per-thread memory if ( mysql_version_ge(4) ) { $mycalc{'per_thread_buffers'} = $myvar{'read_buffer_size'} + $myvar{'read_rnd_buffer_size'} + $myvar{'sort_buffer_size'} + $myvar{'thread_stack'} + $myvar{'join_buffer_size'}; } else { $mycalc{'per_thread_buffers'} = $myvar{'record_buffer'} + $myvar{'record_rnd_buffer'} + $myvar{'sort_buffer'} + $myvar{'thread_stack'} + $myvar{'join_buffer_size'}; } $mycalc{'total_per_thread_buffers'} = $mycalc{'per_thread_buffers'} * $myvar{'max_connections'}; $mycalc{'max_total_per_thread_buffers'} = $mycalc{'per_thread_buffers'} * $mystat{'Max_used_connections'}; # Server-wide memory $mycalc{'max_tmp_table_size'} = ( $myvar{'tmp_table_size'} > $myvar{'max_heap_table_size'} ) ? $myvar{'max_heap_table_size'} : $myvar{'tmp_table_size'}; $mycalc{'server_buffers'} = $myvar{'key_buffer_size'} + $mycalc{'max_tmp_table_size'}; $mycalc{'server_buffers'} += ( defined $myvar{'innodb_buffer_pool_size'} ) ? $myvar{'innodb_buffer_pool_size'} : 0; $mycalc{'server_buffers'} += ( defined $myvar{'innodb_additional_mem_pool_size'} ) ? $myvar{'innodb_additional_mem_pool_size'} : 0; $mycalc{'server_buffers'} += ( defined $myvar{'innodb_log_buffer_size'} ) ? $myvar{'innodb_log_buffer_size'} : 0; $mycalc{'server_buffers'} += ( defined $myvar{'query_cache_size'} ) ? $myvar{'query_cache_size'} : 0; $mycalc{'server_buffers'} += ( defined $myvar{'aria_pagecache_buffer_size'} ) ? $myvar{'aria_pagecache_buffer_size'} : 0; # Global memory # Max used memory is memory used by MySQL based on Max_used_connections # This is the max memory used theorically calculated with the max concurrent connection number reached by mysql $mycalc{'max_used_memory'} = $mycalc{'server_buffers'} + $mycalc{"max_total_per_thread_buffers"}; $mycalc{'pct_max_used_memory'} = percentage( $mycalc{'max_used_memory'}, $physical_memory ); # Total possible memory is memory needed by MySQL based on max_connections # This is the max memory MySQL can theorically used if all connections allowed has opened by mysql $mycalc{'max_peak_memory'} = $mycalc{'server_buffers'} + $mycalc{'total_per_thread_buffers'}; $mycalc{'pct_max_physical_memory'} = percentage( $mycalc{'max_peak_memory'}, $physical_memory ); debugprint "Max Used Memory: " . hr_bytes( $mycalc{'max_used_memory'} ) . ""; debugprint "Max Used Percentage RAM: " . $mycalc{'pct_max_used_memory'} . "%"; debugprint "Max Peak Memory: " . hr_bytes( $mycalc{'max_peak_memory'} ) . ""; debugprint "Max Peak Percentage RAM: " . $mycalc{'pct_max_physical_memory'} . "%"; # Slow queries $mycalc{'pct_slow_queries'} = int( ( $mystat{'Slow_queries'} / $mystat{'Questions'} ) * 100 ); # Connections $mycalc{'pct_connections_used'} = int( ( $mystat{'Max_used_connections'} / $myvar{'max_connections'} ) * 100 ); $mycalc{'pct_connections_used'} = ( $mycalc{'pct_connections_used'} > 100 ) ? 100 : $mycalc{'pct_connections_used'}; # Aborted Connections $mycalc{'pct_connections_aborted'} = percentage( $mystat{'Aborted_connects'}, $mystat{'Connections'} ); debugprint "Aborted_connects: " . $mystat{'Aborted_connects'} . ""; debugprint "Connections: " . $mystat{'Connections'} . ""; debugprint "pct_connections_aborted: " . $mycalc{'pct_connections_aborted'} . ""; # Key buffers if ( mysql_version_ge( 4, 1 ) && $myvar{'key_buffer_size'} > 0 ) { $mycalc{'pct_key_buffer_used'} = sprintf( "%.1f", ( 1 - ( ( $mystat{'Key_blocks_unused'} * $myvar{'key_cache_block_size'} ) / $myvar{'key_buffer_size'} ) ) * 100 ); } else { $mycalc{'pct_key_buffer_used'} = 0; } if ( $mystat{'Key_read_requests'} > 0 ) { $mycalc{'pct_keys_from_mem'} = sprintf( "%.1f", ( 100 - ( ( $mystat{'Key_reads'} / $mystat{'Key_read_requests'} ) * 100 ) ) ); } else { $mycalc{'pct_keys_from_mem'} = 0; } if ( defined $mystat{'Aria_pagecache_read_requests'} && $mystat{'Aria_pagecache_read_requests'} > 0 ) { $mycalc{'pct_aria_keys_from_mem'} = sprintf( "%.1f", ( 100 - ( ( $mystat{'Aria_pagecache_reads'} / $mystat{'Aria_pagecache_read_requests'} ) * 100 ) ) ); } else { $mycalc{'pct_aria_keys_from_mem'} = 0; } if ( $mystat{'Key_write_requests'} > 0 ) { $mycalc{'pct_wkeys_from_mem'} = sprintf( "%.1f", ( 100 - ( ( $mystat{'Key_writes'} / $mystat{'Key_write_requests'} ) * 100 ) ) ); } else { $mycalc{'pct_wkeys_from_mem'} = 0; } if ( $doremote eq 0 and !mysql_version_ge(5) ) { my $size = 0; $size += (split)[0] for `find $myvar{'datadir'} -name "*.MYI" 2>&1 | xargs du -L $duflags 2>&1`; $mycalc{'total_myisam_indexes'} = $size; $mycalc{'total_aria_indexes'} = 0; } elsif ( mysql_version_ge(5) ) { $mycalc{'total_myisam_indexes'} = select_one "SELECT IFNULL(SUM(INDEX_LENGTH),0) FROM information_schema.TABLES WHERE TABLE_SCHEMA NOT IN ('information_schema') AND ENGINE = 'MyISAM';"; $mycalc{'total_aria_indexe'} = select_one "SELECT IFNULL(SUM(INDEX_LENGTH),0) FROM information_schema.TABLES WHERE TABLE_SCHEMA NOT IN ('information_schema') AND ENGINE = 'Aria';"; } if ( defined $mycalc{'total_myisam_indexes'} and $mycalc{'total_myisam_indexes'} == 0 ) { $mycalc{'total_myisam_indexes'} = "fail"; } elsif ( defined $mycalc{'total_myisam_indexes'} ) { chomp( $mycalc{'total_myisam_indexes'} ); } if ( defined $mycalc{'total_aria_indexes'} and $mycalc{'total_aria_indexes'} == 0 ) { $mycalc{'total_aria_indexes'} = "fail"; } elsif ( defined $mycalc{'total_aria_indexes'} ) { chomp( $mycalc{'total_aria_indexes'} ); } # Query cache if ( mysql_version_ge(4) ) { $mycalc{'query_cache_efficiency'} = sprintf( "%.1f", ( $mystat{'Qcache_hits'} / ( $mystat{'Com_select'} + $mystat{'Qcache_hits'} ) ) * 100 ); if ( $myvar{'query_cache_size'} ) { $mycalc{'pct_query_cache_used'} = sprintf( "%.1f", 100 - ( $mystat{'Qcache_free_memory'} / $myvar{'query_cache_size'} ) * 100 ); } if ( $mystat{'Qcache_lowmem_prunes'} == 0 ) { $mycalc{'query_cache_prunes_per_day'} = 0; } else { $mycalc{'query_cache_prunes_per_day'} = int( $mystat{'Qcache_lowmem_prunes'} / ( $mystat{'Uptime'} / 86400 ) ); } } # Sorting $mycalc{'total_sorts'} = $mystat{'Sort_scan'} + $mystat{'Sort_range'}; if ( $mycalc{'total_sorts'} > 0 ) { $mycalc{'pct_temp_sort_table'} = int( ( $mystat{'Sort_merge_passes'} / $mycalc{'total_sorts'} ) * 100 ); } # Joins $mycalc{'joins_without_indexes'} = $mystat{'Select_range_check'} + $mystat{'Select_full_join'}; $mycalc{'joins_without_indexes_per_day'} = int( $mycalc{'joins_without_indexes'} / ( $mystat{'Uptime'} / 86400 ) ); # Temporary tables if ( $mystat{'Created_tmp_tables'} > 0 ) { if ( $mystat{'Created_tmp_disk_tables'} > 0 ) { $mycalc{'pct_temp_disk'} = int( ( $mystat{'Created_tmp_disk_tables'} / $mystat{'Created_tmp_tables'} ) * 100 ); } else { $mycalc{'pct_temp_disk'} = 0; } } # Table cache if ( $mystat{'Opened_tables'} > 0 ) { $mycalc{'table_cache_hit_rate'} = int( $mystat{'Open_tables'} * 100 / $mystat{'Opened_tables'} ); } else { $mycalc{'table_cache_hit_rate'} = 100; } # Open files if ( $myvar{'open_files_limit'} > 0 ) { $mycalc{'pct_files_open'} = int( $mystat{'Open_files'} * 100 / $myvar{'open_files_limit'} ); } # Table locks if ( $mystat{'Table_locks_immediate'} > 0 ) { if ( $mystat{'Table_locks_waited'} == 0 ) { $mycalc{'pct_table_locks_immediate'} = 100; } else { $mycalc{'pct_table_locks_immediate'} = int( $mystat{'Table_locks_immediate'} * 100 / ( $mystat{'Table_locks_waited'} + $mystat{'Table_locks_immediate'} ) ); } } # Thread cache $mycalc{'thread_cache_hit_rate'} = int( 100 - ( ( $mystat{'Threads_created'} / $mystat{'Connections'} ) * 100 ) ); # Other if ( $mystat{'Connections'} > 0 ) { $mycalc{'pct_aborted_connections'} = int( ( $mystat{'Aborted_connects'} / $mystat{'Connections'} ) * 100 ); } if ( $mystat{'Questions'} > 0 ) { $mycalc{'total_reads'} = $mystat{'Com_select'}; $mycalc{'total_writes'} = $mystat{'Com_delete'} + $mystat{'Com_insert'} + $mystat{'Com_update'} + $mystat{'Com_replace'}; if ( $mycalc{'total_reads'} == 0 ) { $mycalc{'pct_reads'} = 0; $mycalc{'pct_writes'} = 100; } else { $mycalc{'pct_reads'} = int( ( $mycalc{'total_reads'} / ( $mycalc{'total_reads'} + $mycalc{'total_writes'} ) ) * 100 ); $mycalc{'pct_writes'} = 100 - $mycalc{'pct_reads'}; } } # InnoDB if ( $myvar{'have_innodb'} eq "YES" ) { $mycalc{'innodb_log_size_pct'} = ( $myvar{'innodb_log_file_size'} * 100 / $myvar{'innodb_buffer_pool_size'} ); } ( $mystat{'Innodb_buffer_pool_read_requests'}, $mystat{'Innodb_buffer_pool_reads'} ) = ( 1, 1 ) unless defined $mystat{'Innodb_buffer_pool_reads'}; $mycalc{'pct_read_efficiency'} = percentage( ( $mystat{'Innodb_buffer_pool_read_requests'} - $mystat{'Innodb_buffer_pool_reads'} ), $mystat{'Innodb_buffer_pool_read_requests'} ) if defined $mystat{'Innodb_buffer_pool_read_requests'}; debugprint "pct_read_efficiency: " . $mycalc{'pct_read_efficiency'} . ""; debugprint "Innodb_buffer_pool_reads: " . $mystat{'Innodb_buffer_pool_reads'} . ""; debugprint "Innodb_buffer_pool_read_requests: " . $mystat{'Innodb_buffer_pool_read_requests'} . ""; ( $mystat{'Innodb_buffer_pool_write_requests'}, $mystat{'Innodb_buffer_pool_writes'} ) = ( 1, 1 ) unless defined $mystat{'Innodb_buffer_pool_writes'}; $mycalc{'pct_write_efficiency'} = percentage( ( $mystat{'Innodb_buffer_pool_write_requests'} - $mystat{'Innodb_buffer_pool_writes'} ), $mystat{'Innodb_buffer_pool_write_requests'} ) if defined $mystat{'Innodb_buffer_pool_write_requests'}; debugprint "pct_write_efficiency: " . $mycalc{'pct_read_efficiency'} . ""; debugprint "Innodb_buffer_pool_writes: " . $mystat{'Innodb_buffer_pool_writes'} . ""; debugprint "Innodb_buffer_pool_write_requests: " . $mystat{'Innodb_buffer_pool_write_requests'} . ""; $mycalc{'pct_innodb_buffer_used'} = percentage( ( $mystat{'Innodb_buffer_pool_pages_total'} - $mystat{'Innodb_buffer_pool_pages_free'} ), $mystat{'Innodb_buffer_pool_pages_total'} ) if defined $mystat{'Innodb_buffer_pool_pages_total'}; # Binlog Cache if ( $myvar{'log_bin'} ne 'OFF' ) { $mycalc{'pct_binlog_cache'} = percentage( $mystat{'Binlog_cache_use'} - $mystat{'Binlog_cache_disk_use'}, $mystat{'Binlog_cache_use'} ); } } sub mysql_stats { prettyprint "\n-------- Performance Metrics -------------------------------------------------"; # Show uptime, queries per second, connections, traffic stats my $qps; if ( $mystat{'Uptime'} > 0 ) { $qps = sprintf( "%.3f", $mystat{'Questions'} / $mystat{'Uptime'} ); } push( @generalrec, "MySQL started within last 24 hours - recommendations may be inaccurate" ) if ( $mystat{'Uptime'} < 86400 ); infoprint "Up for: " . pretty_uptime( $mystat{'Uptime'} ) . " (" . hr_num( $mystat{'Questions'} ) . " q [" . hr_num($qps) . " qps], " . hr_num( $mystat{'Connections'} ) . " conn," . " TX: " . hr_num( $mystat{'Bytes_sent'} ) . ", RX: " . hr_num( $mystat{'Bytes_received'} ) . ")"; infoprint "Reads / Writes: " . $mycalc{'pct_reads'} . "% / " . $mycalc{'pct_writes'} . "%"; # Binlog Cache if ( $myvar{'log_bin'} eq 'OFF' ) { infoprint "Binary logging is disabled"; } else { infoprint "Binary logging is enabled (GTID MODE: " . ( defined( $myvar{'gtid_mode'} ) ? $myvar{'gtid_mode'} : "OFF" ) . ")"; } # Memory usage infoprint "Total buffers: " . hr_bytes( $mycalc{'server_buffers'} ) . " global + " . hr_bytes( $mycalc{'per_thread_buffers'} ) . " per thread ($myvar{'max_connections'} max threads)"; if ( $opt{buffers} ne 0 ) { infoprint "Global Buffers"; infoprint " +-- Key Buffer: " . hr_bytes( $myvar{'key_buffer_size'} ) . ""; infoprint " +-- Max Tmp Table: " . hr_bytes( $mycalc{'max_tmp_table_size'} ) . ""; if ( defined $myvar{'query_cache_type'} ) { infoprint "Query Cache Buffers"; infoprint " +-- Query Cache: " . $myvar{'query_cache_type'} . " - " . ( $myvar{'query_cache_type'} eq 0 | $myvar{'query_cache_type'} eq 'OFF' ? "DISABLED" : ( $myvar{'query_cache_type'} eq 1 ? "ALL REQUESTS" : "ON DEMAND" ) ) . ""; infoprint " +-- Query Cache Size: " . hr_bytes( $myvar{'query_cache_size'} ) . ""; } infoprint "Per Thread Buffers"; infoprint " +-- Read Buffer: " . hr_bytes( $myvar{'read_buffer_size'} ) . ""; infoprint " +-- Read RND Buffer: " . hr_bytes( $myvar{'read_rnd_buffer_size'} ) . ""; infoprint " +-- Sort Buffer: " . hr_bytes( $myvar{'sort_buffer_size'} ) . ""; infoprint " +-- Thread stack: " . hr_bytes( $myvar{'thread_stack'} ) . ""; infoprint " +-- Join Buffer: " . hr_bytes( $myvar{'join_buffer_size'} ) . ""; if ( $myvar{'log_bin'} ne 'OFF' ) { infoprint "Binlog Cache Buffers"; infoprint " +-- Binlog Cache: " . hr_bytes( $myvar{'binlog_cache_size'} ) . ""; } } if ( $arch && $arch == 32 && $mycalc{'max_used_memory'} > 2 * 1024 * 1024 * 1024 ) { badprint "Allocating > 2GB RAM on 32-bit systems can cause system instability"; badprint "Maximum reached memory usage: " . hr_bytes( $mycalc{'max_used_memory'} ) . " ($mycalc{'pct_max_used_memory'}% of installed RAM)"; } elsif ( $mycalc{'pct_max_used_memory'} > 85 ) { badprint "Maximum reached memory usage: " . hr_bytes( $mycalc{'max_used_memory'} ) . " ($mycalc{'pct_max_used_memory'}% of installed RAM)"; } else { goodprint "Maximum reached memory usage: " . hr_bytes( $mycalc{'max_used_memory'} ) . " ($mycalc{'pct_max_used_memory'}% of installed RAM)"; } if ( $mycalc{'pct_max_physical_memory'} > 85 ) { badprint "Maximum possible memory usage: " . hr_bytes( $mycalc{'max_peak_memory'} ) . " ($mycalc{'pct_max_physical_memory'}% of installed RAM)"; push( @generalrec, "Reduce your overall MySQL memory footprint for system stability" ); } else { goodprint "Maximum possible memory usage: " . hr_bytes( $mycalc{'max_peak_memory'} ) . " ($mycalc{'pct_max_physical_memory'}% of installed RAM)"; } # Slow queries if ( $mycalc{'pct_slow_queries'} > 5 ) { badprint "Slow queries: $mycalc{'pct_slow_queries'}% (" . hr_num( $mystat{'Slow_queries'} ) . "/" . hr_num( $mystat{'Questions'} ) . ")"; } else { goodprint "Slow queries: $mycalc{'pct_slow_queries'}% (" . hr_num( $mystat{'Slow_queries'} ) . "/" . hr_num( $mystat{'Questions'} ) . ")"; } if ( $myvar{'long_query_time'} > 10 ) { push( @adjvars, "long_query_time (<= 10)" ); } if ( defined( $myvar{'log_slow_queries'} ) ) { if ( $myvar{'log_slow_queries'} eq "OFF" ) { push( @generalrec, "Enable the slow query log to troubleshoot bad queries" ); } } # Connections if ( $mycalc{'pct_connections_used'} > 85 ) { badprint "Highest connection usage: $mycalc{'pct_connections_used'}% ($mystat{'Max_used_connections'}/$myvar{'max_connections'})"; push( @adjvars, "max_connections (> " . $myvar{'max_connections'} . ")" ); push( @adjvars, "wait_timeout (< " . $myvar{'wait_timeout'} . ")", "interactive_timeout (< " . $myvar{'interactive_timeout'} . ")" ); push( @generalrec, "Reduce or eliminate persistent connections to reduce connection usage" ); } else { goodprint "Highest usage of available connections: $mycalc{'pct_connections_used'}% ($mystat{'Max_used_connections'}/$myvar{'max_connections'})"; } # Aborted Connections if ( $mycalc{'pct_connections_aborted'} > 3 ) { badprint "Aborted connections: $mycalc{'pct_connections_aborted'}% ($mystat{'Aborted_connects'}/$mystat{'Connections'})"; push( @generalrec, "Reduce or eliminate unclosed connections and network issues" ); } else { goodprint "Aborted connections: $mycalc{'pct_connections_aborted'}% ($mystat{'Aborted_connects'}/$mystat{'Connections'})"; } # Query cache if ( !mysql_version_ge(4) ) { # MySQL versions < 4.01 don't support query caching push( @generalrec, "Upgrade MySQL to version 4+ to utilize query caching" ); } elsif ( $myvar{'query_cache_size'} < 1 ) { badprint "Query cache is disabled"; push( @adjvars, "query_cache_size (>= 8M)" ); } elsif ( $myvar{'query_cache_type'} eq "OFF" ) { badprint "Query cache is disabled"; push( @adjvars, "query_cache_type (=1)" ); } elsif ( $mystat{'Com_select'} == 0 ) { badprint "Query cache cannot be analyzed - no SELECT statements executed"; } else { if ( $mycalc{'query_cache_efficiency'} < 20 ) { badprint "Query cache efficiency: $mycalc{'query_cache_efficiency'}% (" . hr_num( $mystat{'Qcache_hits'} ) . " cached / " . hr_num( $mystat{'Qcache_hits'} + $mystat{'Com_select'} ) . " selects)"; push( @adjvars, "query_cache_limit (> " . hr_bytes_rnd( $myvar{'query_cache_limit'} ) . ", or use smaller result sets)" ); } else { goodprint "Query cache efficiency: $mycalc{'query_cache_efficiency'}% (" . hr_num( $mystat{'Qcache_hits'} ) . " cached / " . hr_num( $mystat{'Qcache_hits'} + $mystat{'Com_select'} ) . " selects)"; } if ( $mycalc{'query_cache_prunes_per_day'} > 98 ) { badprint "Query cache prunes per day: $mycalc{'query_cache_prunes_per_day'}"; if ( $myvar{'query_cache_size'} >= 128 * 1024 * 1024 ) { push( @generalrec, "Increasing the query_cache size over 128M may reduce performance" ); push( @adjvars, "query_cache_size (> " . hr_bytes_rnd( $myvar{'query_cache_size'} ) . ") [see warning above]" ); } else { push( @adjvars, "query_cache_size (> " . hr_bytes_rnd( $myvar{'query_cache_size'} ) . ")" ); } } else { goodprint "Query cache prunes per day: $mycalc{'query_cache_prunes_per_day'}"; } } # Sorting if ( $mycalc{'total_sorts'} == 0 ) { # For the sake of space, we will be quiet here # No sorts have run yet } elsif ( $mycalc{'pct_temp_sort_table'} > 10 ) { badprint "Sorts requiring temporary tables: $mycalc{'pct_temp_sort_table'}% (" . hr_num( $mystat{'Sort_merge_passes'} ) . " temp sorts / " . hr_num( $mycalc{'total_sorts'} ) . " sorts)"; push( @adjvars, "sort_buffer_size (> " . hr_bytes_rnd( $myvar{'sort_buffer_size'} ) . ")" ); push( @adjvars, "read_rnd_buffer_size (> " . hr_bytes_rnd( $myvar{'read_rnd_buffer_size'} ) . ")" ); } else { goodprint "Sorts requiring temporary tables: $mycalc{'pct_temp_sort_table'}% (" . hr_num( $mystat{'Sort_merge_passes'} ) . " temp sorts / " . hr_num( $mycalc{'total_sorts'} ) . " sorts)"; } # Joins if ( $mycalc{'joins_without_indexes_per_day'} > 250 ) { badprint "Joins performed without indexes: $mycalc{'joins_without_indexes'}"; push( @adjvars, "join_buffer_size (> " . hr_bytes( $myvar{'join_buffer_size'} ) . ", or always use indexes with joins)" ); push( @generalrec, "Adjust your join queries to always utilize indexes" ); } else { # For the sake of space, we will be quiet here # No joins have run without indexes } # Temporary tables if ( $mystat{'Created_tmp_tables'} > 0 ) { if ( $mycalc{'pct_temp_disk'} > 25 && $mycalc{'max_tmp_table_size'} < 256 * 1024 * 1024 ) { badprint "Temporary tables created on disk: $mycalc{'pct_temp_disk'}% (" . hr_num( $mystat{'Created_tmp_disk_tables'} ) . " on disk / " . hr_num( $mystat{'Created_tmp_tables'} ) . " total)"; push( @adjvars, "tmp_table_size (> " . hr_bytes_rnd( $myvar{'tmp_table_size'} ) . ")" ); push( @adjvars, "max_heap_table_size (> " . hr_bytes_rnd( $myvar{'max_heap_table_size'} ) . ")" ); push( @generalrec, "When making adjustments, make tmp_table_size/max_heap_table_size equal" ); push( @generalrec, "Reduce your SELECT DISTINCT queries which have no LIMIT clause" ); } elsif ($mycalc{'pct_temp_disk'} > 25 && $mycalc{'max_tmp_table_size'} >= 256 * 1024 * 1024 ) { badprint "Temporary tables created on disk: $mycalc{'pct_temp_disk'}% (" . hr_num( $mystat{'Created_tmp_disk_tables'} ) . " on disk / " . hr_num( $mystat{'Created_tmp_tables'} ) . " total)"; push( @generalrec, "Temporary table size is already large - reduce result set size" ); push( @generalrec, "Reduce your SELECT DISTINCT queries without LIMIT clauses" ); } else { goodprint "Temporary tables created on disk: $mycalc{'pct_temp_disk'}% (" . hr_num( $mystat{'Created_tmp_disk_tables'} ) . " on disk / " . hr_num( $mystat{'Created_tmp_tables'} ) . " total)"; } } else { # For the sake of space, we will be quiet here # No temporary tables have been created } # Thread cache if ( $myvar{'thread_cache_size'} eq 0 ) { badprint "Thread cache is disabled"; push( @generalrec, "Set thread_cache_size to 4 as a starting value" ); push( @adjvars, "thread_cache_size (start at 4)" ); } else { if ( $mycalc{'thread_cache_hit_rate'} <= 50 ) { badprint "Thread cache hit rate: $mycalc{'thread_cache_hit_rate'}% (" . hr_num( $mystat{'Threads_created'} ) . " created / " . hr_num( $mystat{'Connections'} ) . " connections)"; push( @adjvars, "thread_cache_size (> $myvar{'thread_cache_size'})" ); } else { goodprint "Thread cache hit rate: $mycalc{'thread_cache_hit_rate'}% (" . hr_num( $mystat{'Threads_created'} ) . " created / " . hr_num( $mystat{'Connections'} ) . " connections)"; } } # Table cache my $table_cache_var = ""; if ( $mystat{'Open_tables'} > 0 ) { if ( $mycalc{'table_cache_hit_rate'} < 20 ) { badprint "Table cache hit rate: $mycalc{'table_cache_hit_rate'}% (" . hr_num( $mystat{'Open_tables'} ) . " open / " . hr_num( $mystat{'Opened_tables'} ) . " opened)"; if ( mysql_version_ge( 5, 1 ) ) { $table_cache_var = "table_open_cache"; } else { $table_cache_var = "table_cache"; } push( @adjvars, $table_cache_var . " (> " . $myvar{$table_cache_var} . ")" ); push( @generalrec, "Increase " . $table_cache_var . " gradually to avoid file descriptor limits" ); push( @generalrec, "Read this before increasing " . $table_cache_var . " over 64: http://bit.ly/1mi7c4C" ); push( @generalrec, "Beware that open_files_limit (" . $myvar{'open_files_limit'} . ") variable " ); push( @generalrec, "should be greater than $table_cache_var ( " . $myvar{$table_cache_var} . ")" ); } else { goodprint "Table cache hit rate: $mycalc{'table_cache_hit_rate'}% (" . hr_num( $mystat{'Open_tables'} ) . " open / " . hr_num( $mystat{'Opened_tables'} ) . " opened)"; } } # Open files if ( defined $mycalc{'pct_files_open'} ) { if ( $mycalc{'pct_files_open'} > 85 ) { badprint "Open file limit used: $mycalc{'pct_files_open'}% (" . hr_num( $mystat{'Open_files'} ) . "/" . hr_num( $myvar{'open_files_limit'} ) . ")"; push( @adjvars, "open_files_limit (> " . $myvar{'open_files_limit'} . ")" ); } else { goodprint "Open file limit used: $mycalc{'pct_files_open'}% (" . hr_num( $mystat{'Open_files'} ) . "/" . hr_num( $myvar{'open_files_limit'} ) . ")"; } } # Table locks if ( defined $mycalc{'pct_table_locks_immediate'} ) { if ( $mycalc{'pct_table_locks_immediate'} < 95 ) { badprint "Table locks acquired immediately: $mycalc{'pct_table_locks_immediate'}%"; push( @generalrec, "Optimize queries and/or use InnoDB to reduce lock wait" ); } else { goodprint "Table locks acquired immediately: $mycalc{'pct_table_locks_immediate'}% (" . hr_num( $mystat{'Table_locks_immediate'} ) . " immediate / " . hr_num( $mystat{'Table_locks_waited'} + $mystat{'Table_locks_immediate'} ) . " locks)"; } } # Binlog cache if ( defined $mycalc{'pct_binlog_cache'} ) { if ( $mycalc{'pct_binlog_cache'} < 90 && $mystat{'Binlog_cache_use'} > 0 ) { badprint "Binlog cache memory access: " . $mycalc{'pct_binlog_cache'} . "% ( " . ( $mystat{'Binlog_cache_use'} - $mystat{'Binlog_cache_disk_use'} ) . " Memory / " . $mystat{'Binlog_cache_use'} . " Total)"; push( @generalrec, "Increase binlog_cache_size (Actual value: " . $myvar{'binlog_cache_size'} . ") " ); push( @adjvars, "binlog_cache_size (" . hr_bytes( $myvar{'binlog_cache_size'} + 16 * 1024 * 1024 ) . " ) " ); } else { goodprint "Binlog cache memory access: " . $mycalc{'pct_binlog_cache'} . "% ( " . ( $mystat{'Binlog_cache_use'} - $mystat{'Binlog_cache_disk_use'} ) . " Memory / " . $mystat{'Binlog_cache_use'} . " Total)"; debugprint "Not enought data to validate binlog cache size\n" if $mystat{'Binlog_cache_use'} < 10; } } # Performance options if ( !mysql_version_ge( 5, 1 ) ) { push( @generalrec, "Upgrade to MySQL 5.5+ to use asynchrone write" ); } elsif ( $myvar{'concurrent_insert'} eq "OFF" ) { push( @generalrec, "Enable concurrent_insert by setting it to 'ON'" ); } elsif ( $myvar{'concurrent_insert'} eq 0 ) { push( @generalrec, "Enable concurrent_insert by setting it to 1" ); } } # Recommandations for MyISAM sub mysql_myisam { prettyprint "\n-------- MyISAM Metrics -----------------------------------------------------"; # AriaDB # Key buffer usage if ( defined( $mycalc{'pct_key_buffer_used'} ) ) { if ( $mycalc{'pct_key_buffer_used'} < 90 ) { badprint "Key buffer used: $mycalc{'pct_key_buffer_used'}% (" . hr_num( $myvar{'key_buffer_size'} * $mycalc{'pct_key_buffer_used'} / 100 ) . " used / " . hr_num( $myvar{'key_buffer_size'} ) . " cache)"; #push(@adjvars,"key_buffer_size (\~ ".hr_num( $myvar{'key_buffer_size'} * $mycalc{'pct_key_buffer_used'} / 100).")"); } else { goodprint "Key buffer used: $mycalc{'pct_key_buffer_used'}% (" . hr_num( $myvar{'key_buffer_size'} * $mycalc{'pct_key_buffer_used'} / 100 ) . " used / " . hr_num( $myvar{'key_buffer_size'} ) . " cache)"; } } else { # No queries have run that would use keys debugprint "Key buffer used: $mycalc{'pct_key_buffer_used'}% (" . hr_num( $myvar{'key_buffer_size'} * $mycalc{'pct_key_buffer_used'} / 100 ) . " used / " . hr_num( $myvar{'key_buffer_size'} ) . " cache)"; } # Key buffer if ( !defined( $mycalc{'total_myisam_indexes'} ) and $doremote == 1 ) { push( @generalrec, "Unable to calculate MyISAM indexes on remote MySQL server < 5.0.0" ); } elsif ( $mycalc{'total_myisam_indexes'} =~ /^fail$/ ) { badprint "Cannot calculate MyISAM index size - re-run script as root user"; } elsif ( $mycalc{'total_myisam_indexes'} == "0" ) { badprint "None of your MyISAM tables are indexed - add indexes immediately"; } else { if ( $myvar{'key_buffer_size'} < $mycalc{'total_myisam_indexes'} && $mycalc{'pct_keys_from_mem'} < 95 ) { badprint "Key buffer size / total MyISAM indexes: " . hr_bytes( $myvar{'key_buffer_size'} ) . "/" . hr_bytes( $mycalc{'total_myisam_indexes'} ) . ""; push( @adjvars, "key_buffer_size (> " . hr_bytes( $mycalc{'total_myisam_indexes'} ) . ")" ); } else { goodprint "Key buffer size / total MyISAM indexes: " . hr_bytes( $myvar{'key_buffer_size'} ) . "/" . hr_bytes( $mycalc{'total_myisam_indexes'} ) . ""; } if ( $mystat{'Key_read_requests'} > 0 ) { if ( $mycalc{'pct_keys_from_mem'} < 95 ) { badprint "Read Key buffer hit rate: $mycalc{'pct_keys_from_mem'}% (" . hr_num( $mystat{'Key_read_requests'} ) . " cached / " . hr_num( $mystat{'Key_reads'} ) . " reads)"; } else { goodprint "Read Key buffer hit rate: $mycalc{'pct_keys_from_mem'}% (" . hr_num( $mystat{'Key_read_requests'} ) . " cached / " . hr_num( $mystat{'Key_reads'} ) . " reads)"; } } else { # No queries have run that would use keys debugprint "Key buffer size / total MyISAM indexes: " . hr_bytes( $myvar{'key_buffer_size'} ) . "/" . hr_bytes( $mycalc{'total_myisam_indexes'} ) . ""; } if ( $mystat{'Key_write_requests'} > 0 ) { if ( $mycalc{'pct_wkeys_from_mem'} < 95 ) { badprint "Write Key buffer hit rate: $mycalc{'pct_wkeys_from_mem'}% (" . hr_num( $mystat{'Key_write_requests'} ) . " cached / " . hr_num( $mystat{'Key_writes'} ) . " writes)"; } else { goodprint "Write Key buffer hit rate: $mycalc{'pct_wkeys_from_mem'}% (" . hr_num( $mystat{'Key_write_requests'} ) . " cached / " . hr_num( $mystat{'Key_writes'} ) . " writes)"; } } else { # No queries have run that would use keys debugprint "Write Key buffer hit rate: $mycalc{'pct_wkeys_from_mem'}% (" . hr_num( $mystat{'Key_write_requests'} ) . " cached / " . hr_num( $mystat{'Key_writes'} ) . " writes)"; } } } # Recommandations for Ariadb sub mysql_ariadb { prettyprint "\n-------- AriaDB Metrics -----------------------------------------------------"; # AriaDB unless ( defined $myvar{'have_aria'} && $myvar{'have_aria'} eq "YES" && defined $enginestats{'Aria'} ) { infoprint "AriaDB is disabled."; return; } infoprint "AriaDB is enabled."; # Aria pagecache if ( !defined( $mycalc{'total_aria_indexes'} ) and $doremote == 1 ) { push( @generalrec, "Unable to calculate Aria indexes on remote MySQL server < 5.0.0" ); } elsif ( $mycalc{'total_aria_indexes'} =~ /^fail$/ ) { badprint "Cannot calculate Aria index size - re-run script as root user"; } elsif ( $mycalc{'total_aria_indexes'} == "0" ) { badprint "None of your Aria tables are indexed - add indexes immediately"; } else { if ( $myvar{'aria_pagecache_buffer_size'} < $mycalc{'total_aria_indexes'} && $mycalc{'pct_aria_keys_from_mem'} < 95 ) { badprint "Aria pagecache size / total Aria indexes: " . hr_bytes( $myvar{'aria_pagecache_buffer_size'} ) . "/" . hr_bytes( $mycalc{'total_aria_indexes'} ) . ""; push( @adjvars, "aria_pagecache_buffer_size (> " . hr_bytes( $mycalc{'total_aria_indexes'} ) . ")" ); } else { goodprint "Aria pagecache size / total Aria indexes: " . hr_bytes( $myvar{'aria_pagecache_buffer_size'} ) . "/" . hr_bytes( $mycalc{'total_aria_indexes'} ) . ""; } if ( $mystat{'Aria_pagecache_read_requests'} > 0 ) { if ( $mycalc{'pct_aria_keys_from_mem'} < 95 ) { badprint "Aria pagecache hit rate: $mycalc{'pct_aria_keys_from_mem'}% (" . hr_num( $mystat{'Aria_pagecache_read_requests'} ) . " cached / " . hr_num( $mystat{'Aria_pagecache_reads'} ) . " reads)"; } else { goodprint "Aria pagecache hit rate: $mycalc{'pct_aria_keys_from_mem'}% (" . hr_num( $mystat{'Aria_pagecache_read_requests'} ) . " cached / " . hr_num( $mystat{'Aria_pagecache_reads'} ) . " reads)"; } } else { # No queries have run that would use keys } } } # Recommandations for Innodb sub mysql_innodb { prettyprint "\n-------- InnoDB Metrics -----------------------------------------------------"; # InnoDB unless ( defined $myvar{'have_innodb'} && $myvar{'have_innodb'} eq "YES" && defined $enginestats{'InnoDB'} ) { infoprint "InnoDB is disabled."; if ( mysql_version_ge( 5, 5 ) ) { badprint "InnoDB Storage engine is disabled. InnoDB is the default storage engine"; } return; } infoprint "InnoDB is enabled."; if ( $opt{buffers} ne 0 ) { infoprint "InnoDB Buffers"; if ( defined $myvar{'innodb_buffer_pool_size'} ) { infoprint " +-- InnoDB Buffer Pool: " . hr_bytes( $myvar{'innodb_buffer_pool_size'} ) . ""; } if ( defined $myvar{'innodb_buffer_pool_instances'} ) { infoprint " +-- InnoDB Buffer Pool Instances: " . $myvar{'innodb_buffer_pool_instances'} . ""; } if ( defined $myvar{'innodb_additional_mem_pool_size'} ) { infoprint " +-- InnoDB Additional Mem Pool: " . hr_bytes( $myvar{'innodb_additional_mem_pool_size'} ) . ""; } if ( defined $myvar{'innodb_log_buffer_size'} ) { infoprint " +-- InnoDB Log Buffer: " . hr_bytes( $myvar{'innodb_log_buffer_size'} ) . ""; } if ( defined $mystat{'Innodb_buffer_pool_pages_free'} ) { infoprint " +-- InnoDB Log Buffer Free: " . hr_bytes( $mystat{'Innodb_buffer_pool_pages_free'} ) . ""; } if ( defined $mystat{'Innodb_buffer_pool_pages_total'} ) { infoprint " +-- InnoDB Log Buffer Used: " . hr_bytes( $mystat{'Innodb_buffer_pool_pages_total'} ) . ""; } } # InnoDB Buffer Pull Size if ( $myvar{'innodb_buffer_pool_size'} > $enginestats{'InnoDB'} ) { goodprint "InnoDB buffer pool / data size: " . hr_bytes( $myvar{'innodb_buffer_pool_size'} ) . "/" . hr_bytes( $enginestats{'InnoDB'} ) . ""; } else { badprint "InnoDB buffer pool / data size: " . hr_bytes( $myvar{'innodb_buffer_pool_size'} ) . "/" . hr_bytes( $enginestats{'InnoDB'} ) . ""; push( @adjvars, "innodb_buffer_pool_size (>= " . hr_bytes_rnd( $enginestats{'InnoDB'} ) . ") if possible." ); } # InnoDB Buffer Pull Instances (MySQL 5.6.6+) if ( defined( $myvar{'innodb_buffer_pool_instances'} ) ) { # Bad Value if > 64 if ( $myvar{'innodb_buffer_pool_instances'} > 64 ) { badprint "InnoDB buffer pool instances: " . $myvar{'innodb_buffer_pool_instances'} . ""; push( @adjvars, "innodb_buffer_pool_instances (<= 64)" ); } # InnoDB Buffer Pull Size > 1Go if ( $myvar{'innodb_buffer_pool_size'} > 1024 * 1024 * 1024 ) { # InnoDB Buffer Pull Size / 1Go = InnoDB Buffer Pull Instances limited to 64 max. # InnoDB Buffer Pull Size > 64Go my $max_innodb_buffer_pool_instances = int( $myvar{'innodb_buffer_pool_size'} / ( 1024 * 1024 * 1024 ) ); $max_innodb_buffer_pool_instances = 64 if ( $max_innodb_buffer_pool_instances > 64 ); if ( $myvar{'innodb_buffer_pool_instances'} != $max_innodb_buffer_pool_instances ) { badprint "InnoDB buffer pool instances: " . $myvar{'innodb_buffer_pool_instances'} . ""; push( @adjvars, "innodb_buffer_pool_instances(=" . $max_innodb_buffer_pool_instances . ")" ); } else { goodprint "InnoDB buffer pool instances: " . $myvar{'innodb_buffer_pool_instances'} . ""; } # InnoDB Buffer Pull Size < 1Go } else { if ( $myvar{'innodb_buffer_pool_instances'} != 1 ) { badprint "InnoDB buffer pool <= 1G and innodb_buffer_pool_instances(!=1)."; push( @adjvars, "innodb_buffer_pool_instances (=1)" ); } else { goodprint "InnoDB buffer pool instances: " . $myvar{'innodb_buffer_pool_instances'} . ""; } } } # InnoDB Used Buffer Pool if ( defined $mycalc{'pct_innodb_buffer_used'} && $mycalc{'pct_innodb_buffer_used'} < 80 ) { badprint "InnoDB Used buffer: " . $mycalc{'pct_innodb_buffer_used'} . "% (" . ( $mystat{'Innodb_buffer_pool_pages_total'} - $mystat{'Innodb_buffer_pool_pages_free'} ) . " used/ " . $mystat{'Innodb_buffer_pool_pages_total'} . " total)"; } else { goodprint "InnoDB Used buffer: " . $mycalc{'pct_innodb_buffer_used'} . "% (" . ( $mystat{'Innodb_buffer_pool_pages_total'} - $mystat{'Innodb_buffer_pool_pages_free'} ) . " used/ " . $mystat{'Innodb_buffer_pool_pages_total'} . " total)"; } # InnoDB Read efficency if ( defined $mycalc{'pct_read_efficiency'} && $mycalc{'pct_read_efficiency'} < 90 ) { badprint "InnoDB Read buffer efficiency: " . $mycalc{'pct_read_efficiency'} . "% (" . ( $mystat{'Innodb_buffer_pool_read_requests'} - $mystat{'Innodb_buffer_pool_reads'} ) . " hits/ " . $mystat{'Innodb_buffer_pool_read_requests'} . " total)"; } else { goodprint "InnoDB Read buffer efficiency: " . $mycalc{'pct_read_efficiency'} . "% (" . ( $mystat{'Innodb_buffer_pool_read_requests'} - $mystat{'Innodb_buffer_pool_reads'} ) . " hits/ " . $mystat{'Innodb_buffer_pool_read_requests'} . " total)"; } # InnoDB Write efficiency if ( defined $mycalc{'pct_write_efficiency'} && $mycalc{'pct_write_efficiency'} < 90 ) { badprint "InnoDB Write buffer efficiency: " . $mycalc{'pct_write_efficiency'} . "% (" . ( $mystat{'Innodb_buffer_pool_write_requests'} - $mystat{'Innodb_buffer_pool_writes'} ) . " hits/ " . $mystat{'Innodb_buffer_pool_write_requests'} . " total)"; } else { goodprint "InnoDB Write buffer efficiency: " . $mycalc{'pct_write_efficiency'} . "% (" . ( $mystat{'Innodb_buffer_pool_write_requests'} - $mystat{'Innodb_buffer_pool_writes'} ) . " hits/ " . $mystat{'Innodb_buffer_pool_write_requests'} . " total)"; } # InnoDB Log Waits if ( defined $mystat{'Innodb_log_waits'} && $mystat{'Innodb_log_waits'} > 0 ) { badprint "InnoDB log waits: " . percentage( $mystat{'Innodb_log_waits'}, $mystat{'Innodb_log_writes'} ) . "% (" . $mystat{'Innodb_log_waits'} . " waits / " . $mystat{'Innodb_log_writes'} . " writes)"; push( @adjvars, "innodb_log_buffer_size (>= " . hr_bytes_rnd( $myvar{'innodb_log_buffer_size'} ) . ")" ); } else { goodprint "InnoDB log waits: " . percentage( $mystat{'Innodb_log_waits'}, $mystat{'Innodb_log_writes'} ) . "% (" . $mystat{'Innodb_log_waits'} . " waits / " . $mystat{'Innodb_log_writes'} . " writes)"; } $result{'Calculations'} = {%mycalc}; } # Recommandations for MySQL Databases sub mysql_databases { return if ( $opt{dbstat} == 0 ); prettyprint "\n-------- Database Metrics ------------------------------------------------"; unless ( mysql_version_ge( 5, 5 ) ) { infoprint "Skip Database metrics from information schema missing in this version"; return; } my @dblist = select_array("SHOW DATABASES;"); infoprint "There is " . scalar(@dblist) . " Database(s)."; my @totaldbinfo = split /\s/, select_one( "SELECT SUM(TABLE_ROWS), SUM(DATA_LENGTH), SUM(INDEX_LENGTH) , SUM(DATA_LENGTH+INDEX_LENGTH) FROM information_schema.TABLES;" ); infoprint "All Databases:"; infoprint " +-- ROWS : " . ( $totaldbinfo[0] eq 'NULL' ? 0 : $totaldbinfo[0] ) . ""; infoprint " +-- DATA : " . hr_bytes( $totaldbinfo[1] ) . "(" . percentage( $totaldbinfo[1], $totaldbinfo[3] ) . "%)"; infoprint " +-- INDEX: " . hr_bytes( $totaldbinfo[2] ) . "(" . percentage( $totaldbinfo[2], $totaldbinfo[3] ) . "%)"; infoprint " +-- SIZE : " . hr_bytes( $totaldbinfo[3] ) . ""; badprint "Index size is larger than data size \n" if $totaldbinfo[1] < $totaldbinfo[2]; $result{'Databases'}{'All databases'}{'Rows'} = ( $totaldbinfo[0] eq 'NULL' ? 0 : $totaldbinfo[0] ); $result{'Databases'}{'All databases'}{'Data Size'} = $totaldbinfo[1]; $result{'Databases'}{'All databases'}{'Data Pct'} = percentage( $totaldbinfo[1], $totaldbinfo[3] ) . "%"; $result{'Databases'}{'All databases'}{'Index Size'} = $totaldbinfo[2]; $result{'Databases'}{'All databases'}{'Index Pct'} = percentage( $totaldbinfo[2], $totaldbinfo[3] ) . "%"; $result{'Databases'}{'All databases'}{'Total Size'} = $totaldbinfo[3]; foreach (@dblist) { chomp($_); if ( $_ eq "information_schema" or $_ eq "performance_schema" or $_ eq "mysql" or $_ eq "" ) { next; } my @dbinfo = split /\s/, select_one( "SELECT TABLE_SCHEMA, SUM(TABLE_ROWS), SUM(DATA_LENGTH), SUM(INDEX_LENGTH) , SUM(DATA_LENGTH+INDEX_LENGTH), COUNT(DISTINCT ENGINE) FROM information_schema.TABLES WHERE TABLE_SCHEMA='$_' GROUP BY TABLE_SCHEMA ORDER BY TABLE_SCHEMA" ); next unless defined $dbinfo[0]; infoprint "Database: " . $dbinfo[0] . ""; infoprint " +-- ROWS : " . ( !defined( $dbinfo[1] ) or $dbinfo[1] eq 'NULL' ? 0 : $dbinfo[1] ) . ""; infoprint " +-- DATA : " . hr_bytes( $dbinfo[2] ) . "(" . percentage( $dbinfo[2], $dbinfo[4] ) . "%)"; infoprint " +-- INDEX: " . hr_bytes( $dbinfo[3] ) . "(" . percentage( $dbinfo[3], $dbinfo[4] ) . "%)"; infoprint " +-- TOTAL: " . hr_bytes( $dbinfo[4] ) . ""; badprint "Index size is larger than data size for $dbinfo[0] \n" if $dbinfo[2] < $dbinfo[3]; badprint "There " . $dbinfo[5] . " storage engines. Be careful \n" if $dbinfo[5] > 1; $result{'Databases'}{ $dbinfo[0] }{'Rows'} = $dbinfo[1]; $result{'Databases'}{ $dbinfo[0] }{'Data Size'} = $dbinfo[2]; $result{'Databases'}{ $dbinfo[0] }{'Data Pct'} = percentage( $dbinfo[2], $dbinfo[4] ) . "%"; $result{'Databases'}{ $dbinfo[0] }{'Index Size'} = $dbinfo[3]; $result{'Databases'}{ $dbinfo[0] }{'Index Pct'} = percentage( $dbinfo[3], $dbinfo[4] ) . "%"; $result{'Databases'}{ $dbinfo[0] }{'Total Size'} = $dbinfo[4]; } } # Recommandations for MySQL Databases sub mysql_indexes { return if ( $opt{idxstat} == 0 ); prettyprint "\n-------- Indexes Metrics -------------------------------------------------"; unless ( mysql_version_ge( 5, 5 ) ) { infoprint "Skip Index metrics from information schema missing in this version"; return; } my $selIdxReq = <<'ENDSQL'; SELECT CONCAT(CONCAT(t.TABLE_SCHEMA, '.'),t.TABLE_NAME) AS 'table' , CONCAT(CONCAT(CONCAT(s.INDEX_NAME, '('),s.COLUMN_NAME), ')') AS 'index' , s.SEQ_IN_INDEX AS 'seq' , s2.max_columns AS 'maxcol' , s.CARDINALITY AS 'card' , t.TABLE_ROWS AS 'est_rows' , ROUND(((s.CARDINALITY / IFNULL(t.TABLE_ROWS, 0.01)) * 100), 2) AS 'sel' FROM INFORMATION_SCHEMA.STATISTICS s INNER JOIN INFORMATION_SCHEMA.TABLES t ON s.TABLE_SCHEMA = t.TABLE_SCHEMA AND s.TABLE_NAME = t.TABLE_NAME INNER JOIN ( SELECT TABLE_SCHEMA , TABLE_NAME , INDEX_NAME , MAX(SEQ_IN_INDEX) AS max_columns FROM INFORMATION_SCHEMA.STATISTICS WHERE TABLE_SCHEMA NOT IN ('mysql', 'information_schema', 'performance_schema') GROUP BY TABLE_SCHEMA, TABLE_NAME, INDEX_NAME ) AS s2 ON s.TABLE_SCHEMA = s2.TABLE_SCHEMA AND s.TABLE_NAME = s2.TABLE_NAME AND s.INDEX_NAME = s2.INDEX_NAME WHERE t.TABLE_SCHEMA NOT IN ('mysql', 'information_schema', 'performance_schema') AND t.TABLE_ROWS > 10 AND s.CARDINALITY IS NOT NULL AND (s.CARDINALITY / IFNULL(t.TABLE_ROWS, 0.01)) < 8.00 ORDER BY sel LIMIT 10; ENDSQL my @idxinfo = select_array($selIdxReq); infoprint "Worst selectivity indexes:"; foreach (@idxinfo) { debugprint "$_"; my @info = split /\s/; infoprint "Index: " . $info[1] . ""; infoprint " +-- COLUNM : " . $info[0] . ""; infoprint " +-- NB SEQS : " . $info[2] . " sequence(s)"; infoprint " +-- NB COLS : " . $info[3] . " column(s)"; infoprint " +-- CARDINALITY : " . $info[4] . " distinct values"; infoprint " +-- NB ROWS : " . $info[5] . " rows"; infoprint " +-- SELECTIVITY : " . $info[6] . "%"; $result{'Indexes'}{ $info[1] }{'Colunm'} = $info[0]; $result{'Indexes'}{ $info[1] }{'Sequence number'} = $info[2]; $result{'Indexes'}{ $info[1] }{'Number of collunm'} = $info[3]; $result{'Indexes'}{ $info[1] }{'Cardianality'} = $info[4]; $result{'Indexes'}{ $info[1] }{'Row number'} = $info[5]; $result{'Indexes'}{ $info[1] }{'Selectivity'} = $info[6]; if ( $info[6] < 25 ) { badprint "$info[1] has a low selectivity"; } } return unless ( defined( $myvar{'performance_schema'} ) and $myvar{'performance_schema'} eq 'ON' ); $selIdxReq = <<'ENDSQL'; SELECT CONCAT(CONCAT(object_schema,'.'),object_name) AS 'table', index_name FROM performance_schema.table_io_waits_summary_by_index_usage WHERE index_name IS NOT NULL AND count_star =0 AND index_name <> 'PRIMARY' AND object_schema != 'mysql' ORDER BY count_star, object_schema, object_name; ENDSQL @idxinfo = select_array($selIdxReq); infoprint "Unsused indexes:"; push( @generalrec, "Remove unused indexes." ) if ( scalar(@idxinfo) > 0 ); foreach (@idxinfo) { debugprint "$_"; my @info = split /\s/; badprint "Index: $info[1] on $info[0] is not used."; push @{ $result{'Indexes'}{'Unused Indexes'} }, $info[0] . "." . $info[1]; } } # Take the two recommendation arrays and display them at the end of the output sub make_recommendations { prettyprint "\n-------- Recommendations -----------------------------------------------------"; if ( @generalrec > 0 ) { prettyprint "General recommendations:"; foreach (@generalrec) { prettyprint " " . $_ . ""; } } if ( @adjvars > 0 ) { prettyprint "Variables to adjust:"; if ( $mycalc{'pct_max_physical_memory'} > 90 ) { prettyprint " *** MySQL's maximum memory usage is dangerously high ***\n" . " *** Add RAM before increasing MySQL buffer variables ***"; } foreach (@adjvars) { prettyprint " " . $_ . ""; } } if ( @generalrec == 0 && @adjvars == 0 ) { prettyprint "No additional performance recommendations are available."; } } sub close_outputfile { close($fh) if defined($fh); } sub headerprint { prettyprint " >> MySQLTuner $tunerversion - Major Hayden \n" . " >> Bug reports, feature requests, and downloads at http://mysqltuner.com/\n" . " >> Run with '--help' for additional options and output filtering"; } sub string2file { my $filename=shift; my $content=shift; open my $fh, q(>), $filename or die "Unable to open $filename in write mode. please check permissions for this file or directory"; print $fh $content if defined($content); close $fh; debugprint $content if ($opt{'debug'}); } sub file2array { my $filename = shift; debugprint "* reading $filename" if ($opt{'debug'}); my $fh; open( $fh, q(<), "$filename" ) or die "Couldn't open $filename for reading: $!\n"; my @lines = <$fh>; close($fh); return @lines; } sub file2string { return join ( '', file2array(@_) ); } my $templateModel; if ($opt{'template'} ne 0 ) { $templateModel=file2string ($opt{'template'}); }else { # DEFAULT REPORT TEMPLATE $templateModel=<<'END_TEMPLATE'; Report

Result output

{$data}
END_TEMPLATE } sub dump_result { if ($opt{'debug'}) { use Data::Dumper qw/Dumper/; $Data::Dumper::Pair = " : "; debugprint Dumper( \%result ); } debugprint "HTML REPORT: $opt{'reportfile'}"; if ($opt{'reportfile'} ne 0 ) { use Data::Dumper qw/Dumper/; $Data::Dumper::Pair = " : "; my $vars= {'data' => Dumper( \%result ) }; my $template = Text::Template->new(TYPE => 'STRING', PREPEND => q{;}, SOURCE => $templateModel) or die "Couldn't construct template: $Text::Template::ERROR"; open my $fh, q(>), $opt{'reportfile'} or die "Unable to open $opt{'reportfile'} in write mode. please check permissions for this file or directory"; $template->fill_in(HASH =>$vars, OUTPUT=>$fh ); close $fh; } } # --------------------------------------------------------------------------- # BEGIN 'MAIN' # --------------------------------------------------------------------------- headerprint # Header Print mysql_setup; # Gotta login first validate_tuner_version; # Check last version os_setup; # Set up some OS variables get_all_vars; # Toss variables/status into hashes get_tuning_info; # Get information about the tuning connexion validate_mysql_version; # Check current MySQL version check_architecture; # Suggest 64-bit upgrade check_storage_engines; # Show enabled storage engines mysql_databases; # Show informations about databases mysql_indexes; # Show informations about indexes security_recommendations; # Display some security recommendations calculations; # Calculate everything we need mysql_stats; # Print the server stats mysql_myisam; # Print MyISAM stats mysql_innodb; # Print InnoDB stats mysql_ariadb; # Print AriaDB stats get_replication_status; # Print replication info make_recommendations; # Make recommendations based on stats dump_result; # Dump result if debug is on close_outputfile; # Close reportfile if needed # --------------------------------------------------------------------------- # END 'MAIN' # --------------------------------------------------------------------------- 1; __END__ =pod =encoding UTF-8 =head1 NAME MySQLTuner 1.6.0 - MySQL High Performance Tuning Script =head1 IMPORTANT USAGE GUIDELINES To run the script with the default options, run the script without arguments Allow MySQL server to run for at least 24-48 hours before trusting suggestions Some routines may require root level privileges (script will provide warnings) You must provide the remote server's total memory when connecting to other servers =head1 CONNECTION AND AUTHENTIFICATION --host Connect to a remote host to perform tests (default: localhost) --socket Use a different socket for a local connection --port Port to use for connection (default: 3306) --user Username to use for authentication --pass Password to use for authentication --mysqladmin Path to a custom mysqladmin executable --mysqlcmd Path to a custom mysql executable =head1 PERFORMANCE AND REPORTING OPTIONS --skipsize Don't enumerate tables and their types/sizes (default: on) (Recommended for servers with many tables) --skippassword Don't perform checks on user passwords(default: off) --checkversion Check for updates to MySQLTuner (default: don't check) --forcemem Amount of RAM installed in megabytes --forceswap Amount of swap memory configured in megabytes --passwordfile Path to a password file list(one password by line) =head1 OUTPUT OPTIONS --silent Don't output anything on screen --nogood Remove OK responses --nobad Remove negative/suggestion responses --noinfo Remove informational responses --debug Print debug information --dbstat Print database information --idxstat Print index information --nocolor Don't print output in color --buffers Print global and per-thread buffer values --outputfile Path to a output txt file --reportfile Path to a report txt file --template Path to a template file =head1 PERLDOC You can find documentation for this module with the perldoc command. perldoc mysqltuner =head2 INTENALS L Internal documentation =head1 AUTHORS Major Hayden - major@mhtx.net =head1 CONTRIBUTORS =over 4 =item * Matthew Montgomery =item * Paul Kehrer =item * Dave Burgess =item * Jonathan Hinds =item * Mike Jackson =item * Nils Breunese =item * Shawn Ashlee =item * Luuk Vosslamber =item * Ville Skytta =item * Trent Hornibrook =item * Jason Gill =item * Mark Imbriaco =item * Greg Eden =item * Aubin Galinotti =item * Giovanni Bechis =item * Bill Bradford =item * Ryan Novosielski =item * Michael Scheidell =item * Blair Christensen =item * Hans du Plooy =item * Victor Trac =item * Everett Barnes =item * Tom Krouper =item * Gary Barrueto =item * Simon Greenaway =item * Adam Stein =item * Isart Montane =item * Baptiste M. =item * Cole Turner =item * Major Hayden =item * Joe Ashcraft =item * Jean-Marie Renouard =back =head1 SUPPORT Bug reports, feature requests, and downloads at http://mysqltuner.com/ Bug tracker can be found at https://github.com/major/MySQLTuner-perl/issues Maintained by Major Hayden (major\@mhtx.net) - Licensed under GPL =head1 SOURCE CODE L git clone https://github.com/major/MySQLTuner-perl.git =head1 COPYRIGHT AND LICENSE Copyright (C) 2006-2015 Major Hayden - major@mhtx.net For the latest updates, please visit http://mysqltuner.com/ Git repository available at http://github.com/major/MySQLTuner-perl This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see . =cut # Local variables: # indent-tabs-mode: t # cperl-indent-level: 8 # perl-indent-level: 8 # End: MySQLTuner-perl-1.6.0/template_example.tpl000066400000000000000000000035251257644520500205270ustar00rootroot00000000000000 MySQL Tuner report

MysqLTuner Report

Raw Result Data Structure

		{$data}