mysql性能监控工具Innotop简介及配置
1.innotop安装 参考官网:http://innotop.googlecode.com/svn/html/installing.html # wget http://innotop.googlecode.com/files/innotop-1.9.0.tar.gz# tar -zxvf innotop-1.9.0.tar.gz # cd innotop-1.9.0 安装INNOTOP工具非常简单,其是由PERL写的,当然
1.innotop安装
参考官网:http://innotop.googlecode.com/svn/html/installing.html
# wget http://innotop.googlecode.com/files/innotop-1.9.0.tar.gz # tar -zxvf innotop-1.9.0.tar.gz # cd innotop-1.9.0
安装INNOTOP工具非常简单,其是由PERL写的,当然需要PERL环境和相关的工具包。在安装之前先要确定你的系统安装了Time::HiRes,Term::ReadKey,DBI,DBD::mysql这四个包
# perl -MCPAN -eshell CPAN> install Time::HiRes CPAN> install Term::ReadKey CPAN> install DBI CPAN> install DBD::mysql
在解压缩后的源码路径下有安装帮助文件,如下:
# perl Makefile.PL
如果没有报错,然后,使用
# make install
这样就安装 innotop,安装之后系统就会多出一个命令,innotop
得到帮助
# innptop --help
参考官网:http://innotop.googlecode.com/svn/html/manual.html
Innotop详解--非常详细:http://wenku.baidu.com/link?url=0cvUfYA5gwKfwvoo1gGPkr9NfK1eZ5UHa3gAhXB-pwlOLQDyH_Y_BN8q5kfIi89Rz_9eGwjJlWmIQBSZ4hOgg0A-w1nGVnbMbrlQwmxGWz_
其中在QUERY LIST中有个SLOW参数,该参数可以在/etc/my.cnf的配置文件中配置使用
它能记录下所有执行超过long_query_time时间的SQL语句, 帮你找到执行慢的SQL, 方便我们对这些SQL进行优化。
-----如何开启mysql慢查询-----
1.首先,进入mysql,输入命令 show variables like '%quer%';
你会看到其中log_slow_queries 的状态为OFF;long_query_time 为10;
2.编辑/etc/my.cnf文件
在[mysqld]下面添加两行:
log-slow-queries = /var/lib/mysql/mysql-slow.log long_query_time = 3
log-slow-queries为日志存放目录;long_query_time为最大查询秒数(按自己需求设置)。
3.重启服务使配置生效
/etc/init.d/mysqld restart
重新进入数据库查询log_slow_queries状态为ON。

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics

The most suitable platforms for trading Meme coins include: 1. Binance, the world's largest, with high liquidity and low handling fees; 2. OkX, an efficient trading engine, supporting a variety of Meme coins; 3. XBIT, decentralized, supporting cross-chain trading; 4. Redim (Solana DEX), low cost, combined with Serum order book; 5. PancakeSwap (BSC DEX), low transaction fees and fast speed; 6. Orca (Solana DEX), user experience optimization; 7. Coinbase, high security, suitable for beginners; 8. Huobi, well-known in Asia, rich trading pairs; 9. DEXRabbit, intelligent

The top three top ten free market viewing software in the currency circle are OKX, Binance and gate.io. 1. OKX provides a simple interface and real-time data, supporting a variety of charts and market analysis. 2. Binance has powerful functions, accurate data, and is suitable for all kinds of traders. 3. gate.io is known for its stability and comprehensiveness, and is suitable for long-term and short-term investors.

Cryptocurrency data platforms suitable for beginners include CoinMarketCap and non-small trumpet. 1. CoinMarketCap provides global real-time price, market value, and trading volume rankings for novice and basic analysis needs. 2. The non-small quotation provides a Chinese-friendly interface, suitable for Chinese users to quickly screen low-risk potential projects.

The reliable and easy-to-use virtual currency exchange apps are: 1. Binance, 2. OKX, 3. Gate.io, 4. Coinbase, 5. Kraken, 6. Huobi Global, 7. Bitfinex, 8. KuCoin, 9. Bittrex, 10. Poloniex. These platforms were selected as the best for their transaction volume, user experience and security, and all offer registration, verification, deposit, withdrawal and transaction operations.

Recommended apps for the top ten virtual currency viewing platforms: 1. OKX, 2. Binance, 3. Gate.io, 4. Huobi, 5. Coinbase, 6. Kraken, 7. Bitfinex, 8. KuCoin, 9. Bybit, 10. Bitstamp, these platforms provide real-time market trends, technical analysis tools and user-friendly interfaces to help investors make effective market analysis and trading decisions.

When choosing a digital currency trading platform suitable for beginners, you need to consider security, ease of use, educational resources and cost transparency: 1. Priority is given to platforms that provide cold storage, two-factor verification and asset insurance; 2. Apps with a simple interface and clear operation are more suitable for beginners; 3. The platform should provide learning tools such as tutorials and market analysis; 4. Pay attention to hidden costs such as transaction fees and cash withdrawal fees.

The top ten digital virtual currency apps are: 1. OKX, 2. Binance, 3. gate.io, 4. Coinbase, 5. Kraken, 6. Huobi, 7. KuCoin, 8. Bitfinex, 9. Bitstamp, 10. Poloniex. These exchanges are selected based on factors such as transaction volume, user experience and security, and all provide a variety of digital currency trading services and an efficient trading experience.

The core advantage of gate.io (global version) is that the interface is minimalist, supports Chinese, and the fiat currency trading process is intuitive; Binance (simplified version) has the highest global trading volume, and the simple version model only retains spot trading; OKX (Hong Kong version) has the simple version of the interface is simple, supports Cantonese/Mandarin, and has a low threshold for derivative trading; Huobi Global Station (Hong Kong version) has the core advantage of being an old exchange, launches a meta-universe trading terminal; KuCoin (Chinese Community Edition) has the core advantage of supporting 800 currencies, and the interface adopts WeChat interaction; Kraken (Hong Kong version) has the core advantage of being an old American exchange, holding a Hong Kong SVF license, and the interface is simple; HashKey Exchange (Hong Kong licensed) has the core advantage of being a well-known licensed exchange in Hong Kong, supporting France
