Posts tagged mysqlcheck

mysql: mysqlcheck to test, repair and optimize all tables
posted on 2016-04-11 17:46:35

This is all you want:

mysqlcheck --auto-repair -o -A

-o is for optimizing, -A does it for all databases. Beware, might take longer than you think.

If you see in SHOW FULL PROCESSLIST; that mysql starts persisiting large temp tables, it may be in the course of locking your meta tables and thus block the whole database management system.

Kill the process then before it is too late.

A good indicator if something is awry is:

watch -n1 -d "mysql -e 'show full processlist;' | wc -l"

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