I lowered the maintenance_work_mem to 50MB and am still getting the same errors:
Oct 16 09:26:57 [16402]: [1-1] user=,db= ERROR: out of memory
Oct 16 09:26:57 [16402]: [1-2] user=,db= DETAIL: Failed on request of size 52428798.
Oct 16 09:27:57 [16421]: [1-1] user=,db= ERROR: out of memory
Oct 16 09:27:57 [16421]: [1-2] user=,db= DETAIL: Failed on request of size 52428798.
Oct 16 09:29:44 [16500]: [1-1] user=,db= ERROR: out of memory
Oct 16 09:29:44 [16500]: [1-2] user=,db= DETAIL: Failed on request of size 52428798.
Looking at my free memory (from TOP) I find
Mem: 2062364k total, 1846696k used, 215668k free, 223324k buffers
Swap: 2104496k total, 160k used, 2104336k free, 928216k cached
So I don't think that I'm running out of memory total... it seems like it's continually trying to do it. Is there a reason why Postgres would be doing something without a username or database? Or is that just how autovacuum works?
Thanks,
Jason
--
Jason Lustig
Israel: 054-231-8476
U.S.: 716-228-8729
Skype: jasonlustig
On Oct 16, 2007, at 8:23 AM, Richard Huxton wrote:
Jason Lustig wrote:
There isn't any more error message than this... it simply repeats every minute or so, which is really quite strange. And the user & db is really blank in the log, I didn't trim it (if I did I would have replaced it with dummy values).
Hmm - odd that you're not getting any connection details.
I'm using pg 8.2.4 on Linux 2.6.15.
Fair enough.
Oct 16 06:43:47 [2897]: [1-1] user=,db= ERROR: out of memory
Oct 16 06:43:47 [2897]: [1-2] user=,db= DETAIL: Failed on request of size 524287998.
Well, since this is about 500MB and your maintenance_work_mem is set to 500MB that's the obvious place to start. It might just be that you've not got enough free memory.
What happens if you set maintenance_work_mem to say 50MB?
--
Richard Huxton
Archonet Ltd
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