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Hi Some one know why this is happening? I change the OS to 64 bits and now the oom-killer not hapend but Postgres is still showing out of memory Linux SERVER 2.6.18-92.el5 #1 SMP Tue Apr 29 13:16:15 EDT 2008 x86_64 x86_64 x86_64 GNU/Linux Red Hat Enterprise Linux Server release 5.2 (Tikanga) PostgreSQL 8.1.15 32GB RAM My postgresql.conf: # - Memory - shared_buffers = 1048576 # min 16 or max_connections*2, 8KB each temp_buffers = 1024 # min 100, 8KB each max_prepared_transactions = 20 # can be 0 or more # note: increasing max_prepared_transactions costs ~600 bytes of shared memory # per transaction slot, plus lock space (see max_locks_per_transaction). work_mem = 1024 # min 64, size in KB maintenance_work_mem = 65536 # min 1024, size in KB max_stack_depth = 2048 # min 100, size in KB kernel messages: Jul 31 11:50:08 SERVER kernel: postmaster[7686]: segfault at 00007fff3feb1bb0 rip 00002b2f7e17e1a8 rsp 00007fff3feb1b90 error 6 Jul 31 15:41:55 SERVER kernel: postmaster[4737]: segfault at 00007fff3feb1bb0 rip 00002b2f7e1851a8 rsp 00007fff3feb1b90 error 6 PostgreSQL log: <2009-07-31 15:41:55 MDT 7253 > LOG: could not fork new process for connection: Cannot allocate memory <2009-07-31 15:41:55 MDT 7253 > LOG: could not fork new process for connection: Cannot allocate memory <2009-07-31 15:41:55 MDT 10.27.41.74(2606) aforeglobal sysaforeglobal 7423 startup> FATAL: out of memory <2009-07-31 15:41:55 MDT 7253 > LOG: could not fork new process for connection: Cannot allocate memory <2009-07-31 15:41:55 MDT 7253 > LOG: could not fork new process for connection: Cannot allocate memory <2009-07-31 15:41:55 MDT 10.27.36.219(3859) db user 7424 startup> FATAL: out of memory <2009-07-31 15:41:55 MDT 10.20.216.82(1966) db user 7431 startup> FATAL: out of memory TopMemoryContext: 164432 total in 6 blocks; 5368 free (1 chunks); 159064 used MdSmgr: 0 total in 0 blocks; 0 free (0 chunks); 0 used LockTable (locallock hash): 8192 total in 1 blocks; 3744 free (0 chunks); 4448 used Timezones: 52560 total in 2 blocks; 3744 free (0 chunks); 48816 used ErrorContext: 8192 total in 1 blocks; 8160 free (4 chunks); 32 used <2009-07-31 15:41:55 MDT 10.33.128.38(4458) db user 7434 startup> FATAL: out of memory <2009-07-31 15:41:55 MDT 10.33.128.38(4458) db user 7434 startup> DETAIL: Failed on request of size 24000. TopMemoryContext: 164432 total in 6 blocks; 5368 free (1 chunks); 159064 used MdSmgr: 0 total in 0 blocks; 0 free (0 chunks); 0 used LockTable (locallock hash): 8192 total in 1 blocks; 3744 free (0 chunks); 4448 used Timezones: 52560 total in 2 blocks; 3744 free (0 chunks); 48816 used ErrorContext: 8192 total in 1 blocks; 8160 free (4 chunks); 32 used <2009-07-31 15:41:55 MDT 10.33.128.38(4459) db user 7435 startup> FATAL: out of memory <2009-07-31 15:41:55 MDT 10.33.128.38(4459) db user 7435 startup> DETAIL: Failed on request of size 24000. TopMemoryContext: 164432 total in 6 blocks; 5368 free (1 chunks); 159064 used MdSmgr: 0 total in 0 blocks; 0 free (0 chunks); 0 used LockTable (locallock hash): 8192 total in 1 blocks; 3744 free (0 chunks); 4448 used Timezones: 52560 total in 2 blocks; 3744 free (0 chunks); 48816 used ErrorContext: 8192 total in 1 blocks; 8160 free (4 chunks); 32 used <2009-07-31 15:41:55 MDT 10.33.128.38(4460) db user 7436 startup> FATAL: out of memory <2009-07-31 15:41:55 MDT 10.33.128.38(4460) db user 7436 startup> DETAIL: Failed on request of size 24000. <2009-07-31 15:41:55 MDT 10.33.128.38(4461) db user 7438 startup> FATAL: out of memory <2009-07-31 15:41:55 MDT 10.33.128.38(4462) db user 7439 startup> FATAL: out of memory <2009-07-31 15:41:55 MDT 10.33.128.38(4463) db user 7440 startup> FATAL: out of memory <2009-07-31 15:41:55 MDT 10.20.219.194(3594) db user 7433 startup> FATAL: out of memory <2009-07-31 15:41:55 MDT 10.33.128.38(4464) db user 7441 startup> FATAL: out of memory <2009-07-31 15:41:55 MDT 10.33.128.38(4465) db user 7442 startup> FATAL: out of memory <2009-07-31 15:41:55 MDT 10.33.128.31(1263) db user 7447 startup> FATAL: out of memory <2009-07-31 15:41:55 MDT 10.44.5.43(3498) db user 7450 startup> FATAL: out of memory <2009-07-31 15:41:55 MDT 10.27.36.219(3860) db user 7448 startup> FATAL: out of memory <2009-07-31 15:41:55 MDT 10.33.128.10(35976) db user 7460 idle> LOG: unexpected EOF on client connection <2009-07-31 15:41:55 MDT 7253 > LOG: server process (PID 4737) was terminated by signal 11 <2009-07-31 15:41:55 MDT 7253 > LOG: terminating any other active server processes <2009-07-31 15:41:55 MDT 10.33.128.10(35976) db user 7460 idle> WARNING: terminating connection because of crash of another server process Before crash: date & free -m Fri Jul 31 15:40:01 MDT 2009 15:40:01 up 4:48, 3 users, load average: 2.64, 3.04, 3.58 total used free shared buffers cached Mem: 32187 22292 9895 0 164 19824 -/+ buffers/cache: 2303 29884 Swap: 1983 0 1983 After crash: date & free -m Fri Jul 31 15:45:01 MDT 2009 15:45:01 up 4:53, 3 users, load average: 4.45, 3.99, 3.80 total used free shared buffers cached Mem: 32187 14726 17460 0 165 13850 -/+ buffers/cache: 710 31477 Swap: 1983 0 1983 thanks in advance greetings From: fabrixio1@xxxxxxxxxxx To: alvherre@xxxxxxxxxxxxxxxxx CC: pgsql-admin@xxxxxxxxxxxxxx Subject: Re: out of memory Date: Fri, 20 Mar 2009 09:15:05 -0700 Thanks for answer Alvaro Already i have memory overcommit disabled. I've always had with the value 2 vm.overcommit_memory = 2 Fabricio > Date: Wed, 18 Mar 2009 20:28:02 -0400 > From: alvherre@xxxxxxxxxxxxxxxxx > To: fabrixio1@xxxxxxxxxxx > CC: pgsql-admin@xxxxxxxxxxxxxx > Subject: Re: [ADMIN] out of memory > > Fabricio wrote: > > > > > > Hi > > > > I have a dedicated database server with 16 GB of RAM. > > > > and the oom-killer is killing my database > > Try disabling memory overcommit; see 17.4.3 here: > http://www.postgresql.org/docs/8.3/interactive/kernel-resources.html > > -- > Alvaro Herrera http://www.CommandPrompt.com/ > The PostgreSQL Company - Command Prompt, Inc. Date: Thu, 19 Mar 2009 21:36:00 +0300 Subject: Re: out of memory From: vladimir@xxxxxxxxxxxxxx To: fabrixio1@xxxxxxxxxxx CC: pgsql-admin@xxxxxxxxxxxxxx On Fri, Mar 13, 2009 at 11:15 PM, Fabricio <fabrixio1@xxxxxxxxxxx> wrote:
Go download 64-bit OS. -- Vladimir Rusinov http://greenmice.info/ Messenger cumple 10 años de ser parte de tu vida |
