slow query

1 IntroductionThis is used in the production environment of a MongoDB slow query log automatic collection of scripts, the original idea to write this script is to facilitate the collection of slow query logs and facilitate analysis. Because the

Open MySQL slow query under WindowsMySQL configuration file in Windows system is generally my.ini find [mysqld] under the AddLog-slow-queries = F:\MySQL\log\mysqlslowquery.logLong_query_time = 2MySQL slow query enabled under LinuxMySQL configuration

Lab Environment:OS X EI Captian + MySQL 5.7I. Configure MySQL to automatically record slow query logView variables, i.e. configuration informationshow (global) variables like '%slow_query%'To modify a variable:set global 变量名 = 值Variables related to

A. Command Actionsa) database Query Current connection:showprocesslist;&&show status;b) Database viewing status:status;c) view CPU usage:topd) Refresh report Memory usage:free–b–s5 Free command: Total: the total amount of physical memory.

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.

Analysis and solution to slow mysql server query Some developers, especially those who have contact with mysql, may encounter slow mysql queries. of course, I am referring to a large data volume of millions or tens of millions, not dozens of times,

Enable MySQL slow query in WindowsIn Windows, the configuration file of MySQL is usually my. ini. Find [mysqld] and addLog-Slow-queries = F: \ mysql \ log \ mysqlslowquery. LogLong_query_time = 2 Enable MySQL slow query in Linux The configuration

A script for slow query log tracking based on pt-query-digest Percona-toolkit is called MySQL DBA's "Switzerland ***", and its strength is self-evident. The slow query and analysis tool "pt-query-digest" provides many additional attributes, such as

1. How to enable slow query for MySQL in Windows: The configuration file of MySQL in Windows is usually my. ini, and the path of my path is c: \ mysql \ My. ini. You can find Compile my. ini and add it under [mysqld] Log-Slow-queries= D: \ mysql \

MySQL version is mysql5.6.22, installation environment Windows7.1. Use this query log to find SQL statements of efficiency problems and record them for monitoring.You can query and set the slow query log using the following statement(1) Check if the

Here's how to fix it:Original MY.CNF configuration file: The code is as follows Copy Code

MySQL indexes are used to quickly find records with specific values, and all MySQL indexes are saved as B-trees If the query is not indexed, MySQL must start the whole table scan from the first record, knowing that the query to the required

In the process of operating the website, you may encounter the problem of a sudden slow web site, in general, and MySQL slow relationship, you can open the slow query , to find the efficiency of SQL , and then take appropriate measures. Here's how

1, MySQL database when the slow query, is more dangerous, once there are other DDL operations, may cause the entire database waitingCan be divided into the following situations:When the table is a MyISAM table, the table has a slow query, does not

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

Initial: Due to the high CPU consumption of the newly installed server, the response is not timely troubleshooting, because the environment based on the most basic lamp architectureThink of turning on MYSQL slow_query_log slow query log for reasons

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,

Use MySQL 5.7.9 as the monitoring database for Zabbix 2.4.7. Some time ago, the slow query log was turned on, and later found that the slow query log swelled to 700MSee the last 100 most of them are 0.1 seconds later want to change, formerly is the

Good text, in case of loss, so turn it, the other layout to do a simple optimization. Original address: http://ourmysql.com/archives/1401 index PurposeThe goal of the index is to improve the efficiency of the query, you can analogy dictionary, if

1 SummaryIn MySQL, the slow query log is often used as the basis for our query optimization, is there a similar function in MongoDB? The answer is yes, that is to turn on the profiling function. The tool collects writes about MONGODB, cursors,