Dear Tom, thank you for the reply. Tonight this problem happened again: >> CachedPlan: 1024 total in 1 blocks; 640 free (0 chunks); 384 used >> CachedPlanSource: 1024 total in 1 blocks; 336 free (0 chunks); 688 used >> SPI Plan: 1024 total in 1 blocks; 912 free (0 chunks); 112 used >> CachedPlan: 1024 total in 1 blocks; 200 free (0 chunks); 824 used >> CachedPlanSource: 1024 total in 1 blocks; 96 free (0 chunks); 928 used >> SPI Plan: 1024 total in 1 blocks; 928 free (0 chunks); 96 used >> CachedPlan: 1024 total in 1 blocks; 640 free (0 chunks); 384 used >This appears to be a fragment of a memory map that would be produced >in conjunction with an "out of memory" error. It's difficult to say >much more than that with only this much information, but clearly you >need to do something to prevent recurrent out-of-memory errors. We were automatically bulkling a table that archive system logging. We used a pg_bulk, but not a create or replace function. That process often use lots of memory. Just one question: do you think is it possible to disable that logging sentence? Thank you! Francesco ________________________________________ Da: Tom Lane [tgl@xxxxxxxxxxxxx] Inviato: venerdì 4 novembre 2016 21.24 A: Job Cc: pgsql-general@xxxxxxxxxxxxxx Oggetto: Re: CachedPlan logs until full disk Job <Job@xxxxxxxxxxxxxxxxxxxx> writes: > it is the second time (in two weeks), that have a very strange Postgresql in a 8.4.22 installation (32 bit still). You realize, of course, that 8.4.x has been out of support for a couple of years now. > Logfile grow up (in few hours) until filling the Whole disk space. > I can read infinite series of this messages: > CachedPlan: 1024 total in 1 blocks; 640 free (0 chunks); 384 used > CachedPlanSource: 1024 total in 1 blocks; 336 free (0 chunks); 688 used > SPI Plan: 1024 total in 1 blocks; 912 free (0 chunks); 112 used > CachedPlan: 1024 total in 1 blocks; 200 free (0 chunks); 824 used > CachedPlanSource: 1024 total in 1 blocks; 96 free (0 chunks); 928 used > SPI Plan: 1024 total in 1 blocks; 928 free (0 chunks); 96 used > CachedPlan: 1024 total in 1 blocks; 640 free (0 chunks); 384 used This appears to be a fragment of a memory map that would be produced in conjunction with an "out of memory" error. It's difficult to say much more than that with only this much information, but clearly you need to do something to prevent recurrent out-of-memory errors. If looking at the map as a whole makes it clear that it's zillions of CachedPlans that are chewing up most of the memory, then I would guess that they are getting leaked as a result of constantly replacing plpgsql functions --- does your application do a lot of CREATE OR REPLACE FUNCTION commands? I don't think plpgsql coped with that very well before 9.1. regards, tom lane -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general