query log

Mysql logs are stored in all kinds of logs in any database, recording all aspects of the database's work, to help the database administrator track various events that have occurred in the database. In mysql, there are four different types of logs,

MySQL Log managementError logInformation in the server startup and shutdown processError message during server runInformation generated when the event Scheduler runs an eventInformation generated from the server process when it is started from the

MySQL Log managementError logInformation in the server startup and shutdown processError message during server runInformation generated when the event Scheduler runs an eventInformation generated from the server process when it is started from the

Briefly:The method of analyzing the performance of MySQL statement query in addition to using the EXPLAIN output execution plan, you can also let the MySQL record query over a specified time of the statement, we will exceed the specified time of the

MySQL has a function is log down to run the slower SQL statement, the default is not this log, in order to open this function, to modify the my.cnf or in the MySQL boot when the add some parameters. If you modify inside the MY.CNF, add the following

#!/usr/bin/env python#coding: UTF8Import Os,sysImport datetime,shutil,subprocessFrom Config.config import Slow_configClass Cut_mysql (object):Mysql_user,mysql_pass,date_day,slow_log_name,slow_log_path,mysqlsla_log_name,mysqldumpslow_log_name,new_log_

Open a common query logthe general log will not open for performance reasons. Slow log can locate some performance-related SQL, and general log logs all of the SQL. mysql5.0 version, if you want to open slow log, general log, need to restart,

Technical preparationHosted under the Ubuntu14.04.2 platform, based on the MYSQL5.5.46 version.Log files record the various types of MySQL database activities, as a daily location problem of the most common analysis means, MySQL database commonly

Database is a very important part of information system, it is very important to manage it reasonably and efficiently. Typically, the total administrator creates different administrative accounts, and then assigns different operational permissions

1. Error log(1) Description of error logError log: Log the error message encountered by the MySQL service process mysqld during Auto/close or travel(2) Adjustment of error logCheck the error log inside the MY.CNF configuration file

This article describes the MySQL backup and log, because the backup needs to use the log, so before the backup, if the log content is too long, will be the log and backup separately, the first simple introduction of MySQL log related content.MySQL

The MySQL log file is divided into 4 types: error log, universal query log, slow query log, and binary log.1. Error log: Log The problem that occurs when the MySQL server starts, runs, or stops.(1) Start and set error logThe error log feature is

Open binary log (binary log content: Change the operation of the database)In the/ETC/MYSQL/MY.CNFRemove the comment from the Log_bin line to open the following is the saved pathThe following expire_logs_days is how long, MySQL automatically deletes

Mysql Log, where is the mysql Log File? Mysql logs are classified into binary logs, error logs, general query logs, and slow query logs. Binary log: records database operations in the form of binary files, but does not record query statements. Error

Mysql Log learning SummaryI. Log introduction mysql logs are mainly divided into four types. Using these log files, you can view what happened in mysql. These four types of logs are: error logs record problems that occur when mysql service is

One, using the MySQL slow query log location to execute inefficient SQL statements.When MySQL uses the slow query log to locate those SQL statements that perform less efficiently, and start with the--log-slow-queries[=file_name] option, Mysqld

Objective: Keep Empty cup spirit, use performance analysis, focus on measuring server time spent where, think 1, how to confirm that the server has reached the best performance state, 2, why a statement is not fast enough, the diagnosis is

The essence of indexing is to filter out the final desired results by shrinking the range of data that you want to get, and to turn random events into sequential events, that is, with this indexing mechanism, we can always use the same lookup method

An introduction The principle of two indexes Three-indexed data structures Three MySQL index management Four Test indexes Five correct use index Six query optimization artifact-explain The basic steps of seven-slow query

Reference article:Http://ourmysql.com/archives/1359?utm_source=tuicool&utm_medium=referralOfficial: Https://github.com/box/AnemometerSingle-node anemometer monitoring1 Installing Anemometer# cd/data/www/web3# git clone