When the system performance reaches the bottleneck, it is necessary to find out those operations on the performance impact of the system is relatively large, here you can use the database slow query log function to record some more time-consuming
Reference: 5 kinds of MySQL log analysis tools to compete http://blog.csdn.net/gzh0222/article/details/103844751.mysql-log-filter Tool Script Usage instructions:An analysis tool found on Google code. Two executable scripts for Python and PHP are
Recently found a very useful MySQL slow query log visualization tools, online can also find a lot of information, here combined with their own actual situation to reorganize.1. Experimental environment 1.1 system environment:操作系统:CentOS 6.5 64位主机地址:1
MySQL slow query log and MySQL slow log
Lab environment:OS X EI Captian + MySQL 5.71. Configure MySQL to automatically record slow query logs
View the variable, that is, the configuration information.
show (global) variables like
1. mysql-log-filter tool script usage instructions: an analysis tool found on googlecode provides two executable scripts: python and php. Code. google. compmysql-log-filter (requires a ladder to climb the wall), bitsCN Download link: 1.
[MySQLSlowlog] correctly and securely clear the online slow query log slowlog process
[MySQLSlowlog] correct and secure clearing of the online slow query log slowlog process _ MySQL
1. see the slow log status;
mysql> show variables like '%slow%';+-
What is the slow query log for MySQL? Definition: MySQL provides a logging function to record the MySQL corresponding time over the long_query_time value of the SQL statement, long_query_time default value of 10 seconds, the corresponding time of
In MySQL, the slow query log is often used as the basis for us to optimize the database, is there a similar function in MongoDB? The answer is yes, that's the MongoDB database Profiler. So MongoDB not only has, but also has some more detailed
The MySQL version number is mysql5.6.22. Installation Environment Windows7.1. Use this query log to find SQL statements that have an efficiency problem. and record them and monitor them.Ability to query and set slow query logs using, for example,
Mysqldumpslow is a slow query log analysis tool with MySQL, as its name implies, queries those SQL statements that are slow to query, thus analyzing the reason why SQL query efficiency is slow.In general, the results of a Mysqldumpslow group query
Mysql slow query log enabling and Storage Format
Mysql version is mysql5.6.22. The installation environment is Windows 7.
1. Use this query log to find the SQL statement with high efficiency, record it, and monitor it.
You can use the following
A basic tutorial on MySQL slow query log analysis,
0. First, check whether slow query is Enabled:
(1) quick way to run SQL statements
show VARIABLES like "%slow%"
(2) go to my. conf to view the information.
Configuration in my. conf (add it below
Mysql slow query log enabling and storage format, mysql Log enabling Storage
Mysql version is mysql5.6.22. The installation environment is Windows 7.
1. Use this query log to find the SQL statement with high efficiency, record it, and monitor
MySQL slow query log analysis tool mysqldumpslow
Mysqldumpslow is a log analysis tool that comes with mysql. As the name suggests, mysqldumpslow is used to query SQL statements that are slow in query. This analyzes the causes of slow SQL query
When the project is large, mysql processes a large amount of data every day, and some slow queries are inevitable. At this time, we need to enable the slow query log to see which SQL statements need to be optimized. The following describes how to
Essays-66 Articles-0 comments-MySQL slow query (ii)-Pt-query-digest detailed slow query log one, Introduction Pt-query-digest is a tool for analyzing MySQL slow query, it can analyze Binlog, Gene RAL Log, Slowlog, can also be analyzed via
1) First, why should I turn on Binlog log and slow query log?Binlog log will be recorded in the database, so adding and deleting the operation, when accidentally delete, empty data, or database system error, this time you can use the Binlog log to
First, IntroductionMysqlsla is a tool for analyzing the MySQL slow log , which analyzes the reasons for slow queries, including the number of times a SQL is executed and the percentage of slow log data, execution time, waiting time, and so on. The
MySQL's "slow query" refers to an SQL statement that exceeds the maximum allowable query time ( long_query_time ), and the "unused index" query, by definition, is the SQL statement that the query statement does not use to the index.Slow query
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