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MySQL :: MySQL 8.0 Reference Manual :: 7.4.5 The Slow Query Log
https://dev.mysql.com/doc/refman/8.0/en/slow-query-log.html
WEBJun 6, 2010 · Set slow_query_log to 0 to disable the log or to 1 to enable it. Set slow_query_log_file to specify the name of the log file. If a log file already is open, it is closed and the new file is opened. The server writes less information to the slow query log if you use the --log-short-format option.
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How do I enable the MySQL slow query log? - Stack Overflow
https://stackoverflow.com/questions/22609257/how-do-i-enable-the-mysql-slow-query-log
WEBset global log_queries_not_using_indexes = 'ON'. Set the path to the slow query log: set global slow_query_log_file ='/var/log/mysql/slow-query.log'; Set the amount of time a query needs to run before being logged: set global long_query_time = 20; (default is …
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MySQL Slow Query Logs - MySQL Tutorial
https://www.mysqltutorial.org/mysql-administration/mysql-slow-query-logs/
WEB[mysqld] slow_query_log = 1 slow_query_log_file = /var/ log/mysql/mysql-slow.log long_query_time = 1 Code language: JavaScript (javascript) In this file: slow_query_log: Set to 1 to enable slow query logging. slow_query_log_file: Specify the path to the log file, which is /var/log/mysql/mysql-slow.log.
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How to Enable MySQL's Slow Query Log - How-To Geek
https://www.howtogeek.com/devops/how-to-enable-mysqls-slow-query-log/
WEBAug 16, 2022 · You can activate it on your server by running the following command from an administrative MySQL shell: SET GLOBAL slow_query_log_file= '/var/log/mysql/mysql-slow.log'; SET GLOBAL slow_query_log= 1; The change applies immediately. Slow queries will now be logged to. / var /log/mysql/mysql-slow.log.
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Slow query log in mysql - Stack Overflow
https://stackoverflow.com/questions/3135017/slow-query-log-in-mysql
WEBJun 28, 2010 · To enable general and slow query log. mysql > set global general_log = 1; mysql > set global slow_query_log = 1; Table name in which logging is done by default. mysql > select * from mysql.slow_log; mysql > select * from mysql.general_log; For more details visit this link. http://easysolutionweb.com/technology/mysql-server-logs/
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MySQL Slow Query Log: Tools and Tips - Percona Database …
https://www.percona.com/blog/mysql-slow-query-log-tools-and-tips/
WEBMar 14, 2014 · MySQL slow query log. MySQL slow query log is great at spotting really slow queries that are good candidates for optimization. Beginning with MySQL 5.1.21, the minimum value is 0 for long_query_time, and the value can be specified to a resolution of microseconds. In Percona Server additional statistics may be output
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6.6.10 mysqldumpslow — Summarize Slow Query Log Files
https://dev.mysql.com/doc/refman/8.0/en/mysqldumpslow.html
WEB6.6.10 mysqldumpslow — Summarize Slow Query Log Files. The MySQL slow query log contains information about queries that take a long time to execute (see Section 7.4.5, “The Slow Query Log” ). mysqldumpslow parses MySQL …
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7.4.1 Selecting General Query Log and Slow Query Log Output ... - MySQL
https://dev.mysql.com/doc/refman/8.0/en/log-destinations.html
WEBTo write general and slow query log entries only to the log tables, use --log_output=TABLE to select tables as the log destination and --general_log and --slow_query_log to enable both logs. To write slow query log entries only to the log file, use --log_output=FILE to select files as the log destination and --slow_query_log to …
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MySQL 101: How to Find and Tune a Slow MySQL Query
https://www.percona.com/blog/mysql-101-how-to-find-and-tune-a-slow-sql-query/
WEBApr 3, 2024 · Set long_query_time = 0 (in some cases, you may need to rate limit to not flood the log) Enable the slow log and collect for some time (slow_query_log = 1) Stop collection and process the log with pt-query-digest; Begin reviewing the top queries in times of resource usage
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Slow Query Log Overview - MariaDB Knowledge Base
https://mariadb.com/kb/en/slow-query-log-overview/
WEBslow_query_log. slow_query_log_file=/var/log/mysql/mariadb-slow.log. Another way to configure the slow query log filename is to set the log-basename option, which configures MariaDB to use a common prefix for all log files (e.g. slow query log, general query log, error log, binary logs, etc.).
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