The Ultimate Guide to High Availability with MariaDB
This is a read-only copy of the MariaDB Knowledgebase generated on 2024-11-17. For the latest, interactive version please visit https://mariadb.com/kb/.

100% RAM and Swapping

Hi,

Having recently converted our cPanel servers from MySQL to MariaDB we're having issues with MariaDB using 100% of a servers RAM and swap when a customer optimises a table.

This doesn't happen under normal circumstances and only when an optimize is run. Any ideas what's cause this?

The servers have 16GB RAM and use the following my.cnf: http://paste2.org/P3cZzBHN

Using MariaDB 5.5.30

Any help would be appreciated

Thanks

Answer Answered by Brian Evans in this comment.

There was a bug with 5.5.30 specifically that could take up all resources and in some cases invoke OOM-killer on the server process.

Upgrade to 5.5.31 and see if it fixes your issue

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