mysql is consuming more than 100% cpu usage

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mysql is consuming more than 100% memory which leading to server crash and data loss. and at the same time when cpu usage is more i am getting following exception while trying to access database

Authentication to host '127.0.0.1' for user 'admin' using method 'mysql_native_password' failed with message: User admin already has more than 'max_user_connections' active connections

please can anybody look into this,any suggestion appreciated

Posted 7-Oct-15 23:42pm

chandubbbb

Updated 8-Oct-15 2:49am

ZurdoDev

v2

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Comments

Vibhav Ramcharan 8-Oct-15 7:36am

I recommend trying the following:
1. Increase "Key Buffer", this should help immediately.
2. Run "mysqloptimize" and "mysqlrepair" on your tables
3. Increase table cache
4. Other recommended configuration options:
4.1 log_slow_queries = /var/log/mysql/mysql-slow.log (http://dev.mysql.com/doc/refman/5.0/en/slow-query-log.html)
4.2 long_query_time = 4
4.3 log-queries-not-using-indexes
5. switch off of persistent connections in PHP

Maciej Los 8-Oct-15 15:39pm

Are you sure that cpu is laden more than 100%?

Sergey Alexandrovich Kryukov 8-Oct-15 15:48pm

Laden? Or perhaps it was bin laden — please see my comment below... :-)
—SA

Maciej Los 8-Oct-15 15:49pm

I wasn't sure which word is the best int this context.

Sergey Alexandrovich Kryukov 8-Oct-15 15:53pm

It was just a pun... :-)
—SA

Maciej Los 8-Oct-15 16:36pm

;)

Sergey Alexandrovich Kryukov 8-Oct-15 15:46pm

No, I don't believe you. This is the same as election getting votes from more than 100% of population — there is cheating somewhere. :-)
—SA

Maciej Los 8-Oct-15 15:49pm

I coudn't say it better.

Sergey Alexandrovich Kryukov 8-Oct-15 15:53pm

:-)

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