Re: Single query uses all system memory

2018-06-26 Thread Magnus Hagander
On Tue, Jun 26, 2018 at 11:40 AM, Ivar Fredriksen wrote: > A single large query is able to spend all the system memory (as reported > by top), and the oom_reaper kills postgres. See bottom of email for an > example query and logs. > > > > Expected behavior would be that postgres is not killed and

Re: Single query uses all system memory

2018-06-26 Thread Fabio Pardi
Hi Ivar, I agree with Magnus. As addition, also i would change:  effective_cache_size and  maintenance_work_mem Then disable OOM killer, change logging in order to log files on disk to see if your work_mem is too low and spills on disk, rethink your data structure and, overall, I think that