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Postgresql Error Out Of Memory


I'm just not able to work around this issue, unless if I take most of the MAX() functions out but just one. And it's harder for the kernel to defragment memory. Total Memory on server : free -m 4.  Actual error with query from pg_log. Join them; it only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the have a peek here

Set it to 200MB and reload your conf files ("select pg_reload_conf()") and try your queries again. Problem characteristics: Upgraded database from Postgres 8.2 to Postgres 9.2 Query is failing with Out of Memory Explain plan is damn big ! Unless the server is overdimensioned. It could be that you are updating the same target rows repeatedly. 2) always add a WHERE suborganisation.id_organization <> organization.id_organization clause to update-queries to avoid same valued updates. –wildplasser Jun 5 http://dba.stackexchange.com/questions/64570/postgresql-error-out-of-memory

Postgres Out Of Memory For Query Result

Some specs:proc: Intel Xeon X5650 @ 2.67Ghz dual procs 6-core, hyperthreading on.memory: 48GBOS: Oracle Enterprise Linux 6.3postgresql version: 9.1.9 shared_buffers: 18GBAfter doing a lot of googling, I've tried setting FETCH_COUNT on memory: 48GB OS: Oracle Enterprise Linux 6.3 postgresql version: 9.1.9 shared_buffers: 18GB After doing a lot of googling, I've tried setting FETCH_COUNT on psql AND/OR setting work_mem. That seems > about 2 to 3 times beyond what you probably want. > -- Sent via pgsql-general mailing list ([hidden email]) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general Tomas Vondra In reply to this post by Brian Wong-3 From: [hidden email] [mailto:[hidden email]] On Behalf Of Brian Wong Sent: Monday, November 18, 2013 11:30 PM To: bricklen Cc: [hidden email] Subject:

You know what, the change solved the problem ! Thank you ;-)> > Regarding the issue you're seeing:> > * Increasing work_mem in hope that it will make the issue go away is> pointless. How can I prevent the out of memory error? Postgres Show Work_mem if the amount of data grows and you'll hit the limit again.

I'm not sure I understand what you're trying to say. Psql Out Of Memory Restore more hot questions question feed lang-sql about us tour help blog chat data legal privacy policy work here advertising info mobile contact us feedback Technology Life / Arts Culture / Recreation I'd like to think of this problem as a server > process memory (not the server's buffers) or client process memory issue, > primarily because when we tested the error there https://www.postgresql.org/message-id/[email protected] HelloI reported  similar problem week ago - Postgres releases work_mem (assigned for every SELECT in union) after query finishing.

asked 4 months ago viewed 88 times active 4 months ago Related 817Strange out of memory issue while loading an image to a Bitmap object3Why is Postgres doing a Hash in Work_mem Postgres It will never fail, and messages "failed on request> of size" is actually coming from malloc, when requesting another chunk of> memory from the OS. de Bruyn 1,1461026 add a comment| up vote 1 down vote It is a bit suspicious that you report the same free memory size as your shared_buffers size. Similar topics Memory allocation error under Windows memory leak in the code?

Psql Out Of Memory Restore

Also, several running sessions could be doing such operations concurrently. http://stackoverflow.com/questions/29485644/postgres-gets-out-of-memory-errors-despite-having-plenty-of-free-memory How many groups are in the> result?> > * Setting shared buffers to 18GB is almost certainly a bad choice. Postgres Out Of Memory For Query Result If/else if loop always goes to else statement Can a nuclear detonation on Moon destroy life on Earth? Out Of Memory For Query Result Pgadmin I haven't had much luck pinpointing the first event that causes postgres to run "out of memory" - it seems to be different each time.

So - this is suggesting to me that your machine has > 500 cores and say 100GB of RAM. http://fapel.org/out-of/postgresql-error-out-of-memory-sqlstate-53200.php DonorsChoose.org is an online charity that makes it easy for anyone to help students in need. Excuse me (or just ignore me) if it is a stupid question, but have you configured sysctl.conf accordingly? Also SHOW work_mem;. Psycopg2 Databaseerror Out Of Memory For Query Result

we’ve tried cranking work_mem way up, disabling hashjoin, no dice. More is not always better, and you're actually reserving memory that can't be used for work_mem (so you're making the issue worse). Bell Reply | Threaded Open this post in threaded view ♦ ♦ | Report Content as Inappropriate ♦ ♦ Re: ERROR: out of memory DETAIL: Failed on request of size Check This Out Privacy Policy | About PostgreSQL Copyright © 1996-2016 The PostgreSQL Global Development Group Skip site navigation (1) Skip section navigation (2) Search Peripheral Links Donate Contact Home About Download Documentation Community

Derivatives: simplifying "d" of a number without being over "dx" Get long-description in magento template "Surprising" examples of Markov chains Movie about a board-game that asks the players touchy questions Silicon Postgres Memory Usage The query whose plan is shown is complex and requires several levels of hashing, so you're clearly in the case the doc is warning against. snipped heaps of lines which I can provide if they are useful ...] --- 2015-04-07 05:33:59 UTC ERROR: out of memory 2015-04-07 05:33:59 UTC DETAIL: Failed on request of size 1840.

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I'm just not able to work around this issue, unless if I take most of the MAX() functions out but just one. at 2013-11-27 21:39:46 from Brian Wong pgsql-general by date Next:From: Kevin GrittnerDate: 2013-11-22 19:24:05 Subject: Re: Puzzling table scan in a CTE Previous:From: Edson RichterDate: 2013-11-22 19:09:49 Subject: Re: ERROR: out Hot Network Questions How to make your world’s revolutions feel realistic? Pg_restore Out Of Memory I'm just not able to work around this issue, unless if I take most of the MAX() functions out but just one.Would anyone give me some hints on how to resolve

How much data are you dealing with? If you have explain output from earlier Postgres 8.2 version available, that will be helpful as well. The fact that decreasing shared buffers to 200 MB made the problem go away for now only suggests this is a problem with some kernel limit (ulimit, overcommit, ...). this contact form Find and fix the actual issue.

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