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Re: MySQL 8.0: InnoDB: mmap failed; errno 12
Posted by: Peter Brawley
Date: October 05, 2018 02:30PM

> anything above 100GB is failing.

Sounds to me like a build issue.

> It is a rack server running CentOS 7.

OK. I'd try setting innodb_dedicated_aerver, https://dev.mysql.com/doc/refman/8.0/en/innodb-parameters.html#sysvar_innodb_dedicated_server, and see what MySQL thinks.

> swap is available but it is very small (3G). I could try increasing it.

Oy, no, that's a performance killer.

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Re: MySQL 8.0: InnoDB: mmap failed; errno 12
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