mysql auto kill query

Is it possible mysql to auto kill queries which took more than let`s say 2开发者_C百科0 seconds ?

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I guess you are looking for maatkit utility called mk-kill that will kill queries that match certain criteria.

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It's possible to write a program which does it. Your program would use SHOW PROCESSLIST to discover the currently running queries and how long they've been running, then issue a KILL query to terminate one.

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Install the RubyGem mysql_manager (sudo gem install mysql_manager) and then add a command like this to your crontab:

mysql-manager --kill --kill:user api --kill:max-query-time 30 --log:level DEBUG

For more options, run mysql-manager --help.

You might need to specify an alternative --db:dsn, --db:username, or --db:password.

Read more about it here: https://github.com/osterman/mysql_manager