Re: Out of Memory

My first two guesses are ulimit or numa. numactl --hardware will show your
how many nodes your box has and if you're exhausting any of them.

On Thu, Sep 20, 2018, 6:11 PM greigwise <greigwise(at)comcast(dot)net> wrote:

> Hello, I'm running postgres 9.6.10 on Centos 7. Seeing the occasional out
> of memory error trying to run a query. In the logs I see something like
> this:
>
> Grand total: 462104832 bytes in 795 blocks; 142439136 free (819860 chunks);
> 319665696 used
> 2018-09-20 18:08:01 UTC xxxx 5ba3e1a2.7a8a dbname ERROR: out of memory
> 2018-09-20 18:08:01 UTC xxxx 5ba3e1a2.7a8a dbname DETAIL: Failed on
> request
> of size 2016.
>
> If I have 142439136 free, then why am I failing on a request of size 2016?
>
> Am I misunderstanding here?
>
> Thanks,
> Greig Wise
>
>
>
> --
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>
>