maria-discuss team mailing list archive

[Guillaume Lefranc <guillaume.lefranc@xxxxxxxxxxx>]

Yes, that's right. It's a conservative figure, the amount of memory used by
InnoDB is basically innodb buffer pool + per-page overhead (1462 byte) +
dictionary + adaptive hash index. Then there will be the per-connection
buffers but as long as you keep connections low and don't mess around with
temp tables, you should usually be fine with those.

On Wed, Dec 28, 2016 at 8:16 PM l vic <lvic4594@xxxxxxxxx> wrote:

> You mean innodb_buffer_pool_size to use 60% of RAM, correct?
>
> On Wed, Dec 28, 2016 at 2:12 PM, Guillaume Lefranc <
> guillaume.lefranc@xxxxxxxxxxx> wrote:
>
> Well, in this case, I would take care not to set buffers too high so they
> will not exceed the limit defined by Mesos - I do not think it warrants
> using docker "--memory" option which would kill the service anyway...
> If you run InnoDB, the calculation is a bit complex but you would be fine
> with 60% of maximum RAM. There can be overhead with the dictionary if you
> have many tables, but you can also limit that size.
>
> On Wed, Dec 28, 2016 at 8:04 PM l vic <lvic4594@xxxxxxxxx> wrote:
>
> Hi Guillaume,
> Already do, kind of....
> I run it (mariadb ) in docker, as Mesos task;
> The problem: if memory use by mysqld exceeds limit allocated to mesos
> task, we have oom and mesos kills container
>
>
> On Wed, Dec 28, 2016 at 1:51 PM, Guillaume Lefranc <
> guillaume.lefranc@xxxxxxxxxxx> wrote:
>
> Use linux control groups, or even simpler, run MariaDB with Docker (which
> uses control groups as well):
>
> docker run --name mariadb -d -m 10G mariadb:10.1
>
> On Wed, Dec 28, 2016 at 7:48 PM l vic <lvic4594@xxxxxxxxx> wrote:
>
> Is there some way to set hard limit for use of RAM by mariaDB server?
> Thanks,
> -V
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> --
> Guillaume Lefranc
> Remote DBA Services Manager
> MariaDB Corporation
>
>
> --
> Guillaume Lefranc
> Remote DBA Services Manager
> MariaDB Corporation
>
>
> --
Guillaume Lefranc
Remote DBA Services Manager
MariaDB Corporation