On Wed, Feb 15, 2017 at 01:04:51PM +0100, Karsten Hilbert wrote: > > Nope, that pops too. The query runs for a long time at a somewhat > > normal rate of ram consumption, using ~1G of RSS then suddenly spikes > > to about 6G, at which point the OOM killer pops it. Box has 8G of ram > > and 4G of swap. > > By any chance: > > - when it happens has the kernel considered using swap ? > > - which kernel are you running ? > > There's been (for some workloads) massive problems with RAM > exhaustion / swapping / OOM killer going wild with > 4.7/4.8/some 4.9 kernels. I guess what I'm trying to say is that it may actually not be PostgreSQL's fault but rather the kernel invoking the OOM killer way prematurely. Karsten -- GPG key ID E4071346 @ eu.pool.sks-keyservers.net E167 67FD A291 2BEA 73BD 4537 78B9 A9F9 E407 1346 -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
