Bug#926932: libdbd-mysql-perl: FTBFS (autobuilder hangs)

Santiago Vila sanvila at unex.es
Sat Apr 13 18:38:26 BST 2019


On Sat, Apr 13, 2019 at 07:08:31PM +0200, gregor herrmann wrote:
> On Sat, 13 Apr 2019 18:02:52 +0200, Santiago Vila wrote:
> > I think this is
> > just memory overcommiting on the side of MariaDB, the usual victim
> > of OOM killer in small Wordpress installs not having enough swap.
> 
> Right, the questions are 1) if the memory consumption comes from
> mariadb (and mysql) or dbd::mysql and 2) if and what dbd::mysql
> should do in this case …

Wild guess:

1) Yes, I would think so. mysql/mariadb are known for being memory
hungry monsters that overcommit a lot.

2) Given that mysql/mariadb is started by the package being built,
not by the usual startup scripts (which are disabled by policy-rc.d
inside the chroot), there is a small chance that mariadb could be
started in a way that it uses less memory. I would try searching for
"memory optimizing mysql" or something alike and also look for the
exact place where mariadb is started during the build.

Thanks.



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