MySQL调优工具:MySQLtuner.pl及tuning-primer.sh


MySQL调优工具:MySQLtuner.pl及tuning-primer.sh

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一、概述MySQL调优工具是用于分析和优化MySQL数据库性能的软件工具 。它们可以帮助识别潜在的性能瓶颈、优化查询性能、调整配置参数以及提高数据库的吞吐量和响应时间 。今天分享2个常用的工具 。
  • mysqltuner.pl:一款免费的Perl脚本工具 , 用于检查和优化MySQL服务器的配置参数 。MySQLTuner会分析MySQL的状态和配置,提供建议来改进性能和安全性 。
  • tuning-primer.sh:是一种Shell脚本工具 , 用于评估和优化MySQL服务器的配置参数 。它可以帮助您检查MySQL服务器的状态和配置,并提供相应的建议和优化建议 。
二、解决方案1、mysqltuner.plmysqltuner.pl是一个简单而有效的工具,可以帮助您评估和优化MySQL服务器的配置和性能 。它提供有关配置、性能和安全性方面的建议,使您能够针对具体问题做出相应的调整和改进 。请注意,mysqltuner.pl是一个独立的第三方工具,使用前请确保阅读并理解其文档和指南 。
(1)mysqltuner.pl的特点和功能
  • 配置建议:mysqltuner.pl会分析MySQL服务器的配置参数,并提供针对这些参数的建议 。它会检查各个参数的设置,并根据最佳实践和性能优化原则 , 给出相应的建议 。这些建议可以帮助您优化服务器配置以获得更好的性能和安全性 。
  • 性能建议:除了配置参数,mysqltuner.pl还会分析MySQL服务器的性能指标 , 如查询缓存命中率、连接数、临时表使用等 。它可以提供有关性能瓶颈和优化机会的建议,帮助您识别潜在的性能问题并采取相应的措施 。
  • 安全建议:mysqltuner.pl还提供有关MySQL服务器安全性的建议 。它会检查安全相关的配置参数和权限设置,并给出改进安全性的建议 。这有助于确保MySQL服务器的安全性并防止潜在的安全漏洞 。
  • 自动化分析:mysqltuner.pl是一个自动化的工具,可以在您的MySQL服务器上运行,并生成相应的报告 。它会收集服务器的状态和配置信息,并对其进行分析和评估 。生成的报告中包含详细的建议和统计信息,供您参考和采取相应的措施 。
使用语法:[root@mysqlserver ~]# perl ./mysqltuner.pl --helpName:MySQLTuner 2.2.8 - MySQL High Performance Tuning ScriptImportant Usage Guidelines:To run the script with the default options, run the script withoutarguments Allow MySQL server to run for at least 24-48 hours beforetRusting suggestions Some routines may require root level privileges(script will provide warnings) You must provide the remote server'stotal memory when connecting to other serversConnection and Authentication:--host <hostname>Connect to a remote host to perform tests (default: localhost)--socket <socket>Use a different socket for a local connection--port <port>Port to use for connection (default: 3306)--protocol tcpForce TCP connection instead of socket--user <username>Username to use for authentication--userenv <envvar>Name of env variable which contAIns username to use for authentication--pass <password>Password to use for authentication--passenv <envvar>Name of env variable which contains password to use for authentication--ssl-ca <path>Path to public key--mysqladmin <path>Path to a custom mysqladmin executable--mysqlcmd <path>Path to a custom mysql executable--defaults-file <path>Path to a custom .my.cnf--defaults-extra-file <path>Path to an extra custom config file--server-log <path>Path to explicit log file (error_log)Performance and Reporting Options:--skipsizeDon't enumerate tables and their types/sizes (default: on)(Recommended for servers with many tables)--jsonPrint result as JSON string--prettyjsonPrint result as JSON formatted string--skippasswordDon't perform checks on user passwords (default: off)--checkversionCheck for updates to MySQLTuner (default: don't check)--updateversionCheck for updates to MySQLTuner and update when newer version is available (default: don't check)--forcemem <size>Amount of RAM installed in megabytes--forceswap <size>Amount of swap memory configured in megabytes--passwordfile <path>Path to a password file list (one password by line)--cvefile <path>CVE File for vulnerability checks--outputfile <path>Path to a output txt file--reportfile <path>Path to a report txt file--template<path>Path to a template file--dumpdir <path>Path to a directory where to dump information files--feature <feature>Run a specific feature (see FEATURES section)=head1 OUTPUT OPTIONS--silentDon't output anything on screen--verbosePrint out all options (default: no verbose, dbstat, idxstat, sysstat, tbstat, pfstat)--nocolorDon't print output in color--nogoodRemove OK responses--nobadRemove negative/suggestion responses--noinfoRemove informational responses--debugPrint debug information--noprocessConsider no other process is running--dbstatPrint database information--nodbstatDon't print database information--tbstatPrint table information--notbstatDon't print table information--colstatPrint column information--nocolstatDon't print column information--idxstatPrint index information--noidxstatDon't print index information--nomyisamstatDon't print MyIsam information--sysstatPrint system information--nosysstatDon't print system information--nostructstatDon't print table structures information--pfstatPrint Performance schema--nopfstatDon't print Performance schema--bannedportsPorts banned separated by comma (,)--server-logDefine specific error_log to analyze--maxportallowedNumber of open ports allowable on this host--buffersPrint global and per-thread buffer values


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