Finally I setup two machines for primary and backup using the following link. http://wiki.postgresql.org/wiki/Streaming_Replication
But after starting the backup I got the following messages and postgresql service doesn't start. 2011-04-22 14:37:54 ETC/GMT LOG: database system was shut down in recovery at 2011-04-22 14:23:02 ETC/GMT 2011-04-22 14:37:54 ETC/GMT DEBUG: restore_command = 'cp /opt/PostgreSQL/9.0/data/archive/%f "%p"' 2011-04-22 14:37:54 ETC/GMT DEBUG: standby_mode = 'on' 2011-04-22 14:37:54 ETC/GMT DEBUG: primary_conninfo = 'host=10.20.9.181 port=5432 user=postgres password=Password1' 2011-04-22 14:37:54 ETC/GMT DEBUG: trigger_file = '/tmp/trigger' 2011-04-22 14:37:54 ETC/GMT LOG: entering standby mode 2011-04-22 14:37:54 ETC/GMT DEBUG: executing restore command "cp /opt/PostgreSQL/9.0/data/archive/000000010000000000000007 "pg_xlog/RECOVERYXLOG"" 2011-04-22 14:37:54 ETC/GMT LOG: restored log file "000000010000000000000007" from archive 2011-04-22 14:37:54 ETC/GMT DEBUG: got WAL segment from archive 2011-04-22 14:37:54 ETC/GMT LOG: record with zero length at 0/700011C 2011-04-22 14:37:54 ETC/GMT LOG: record with zero length at 0/700011C 2011-04-22 14:37:54 ETC/GMT DEBUG: find_in_dynamic_libpath: trying "/opt/PostgreSQL/9.0/lib/postgresql/libpqwalreceiver" 2011-04-22 14:37:54 ETC/GMT DEBUG: find_in_dynamic_libpath: trying "/opt/PostgreSQL/9.0/lib/postgresql/libpqwalreceiver.so" 2011-04-22 14:37:55 ETC/GMT FATAL: the database system is starting up 2011-04-22 14:37:55 ETC/GMT DEBUG: shmem_exit(1): 0 callbacks to make 2011-04-22 14:37:55 ETC/GMT DEBUG: proc_exit(1): 1 callbacks to make 2011-04-22 14:37:55 ETC/GMT DEBUG: exit(1) 2011-04-22 14:37:55 ETC/GMT DEBUG: shmem_exit(-1): 0 callbacks to make 2011-04-22 14:37:55 ETC/GMT DEBUG: proc_exit(-1): 0 callbacks to make 2011-04-22 14:37:55 ETC/GMT DEBUG: forked new backend, pid=1256 socket=8 2011-04-22 14:37:55 ETC/GMT DEBUG: reaping dead processes 2011-04-22 14:37:55 ETC/GMT DEBUG: server process (PID 1256) exited with exit code 1 Please help me with this. Regards, Rajib Deka SIEMENS Ltd. Robert V Chandran Tower, First Floor, West Wing, #149, Velechery Tambaram Main Road, Pallikaranai, Chennai-100, INDIA. www.siemens.com Mob: +91-9176780669 | E-Mail: rajib.d...@siemens.com -----Original Message----- From: Deka, Rajib IN MAA SL Sent: Friday, April 22, 2011 12:26 PM To: 'Cédric Villemain'; Robert Haas Cc: Simon Riggs; pgsql-hackers Subject: RE: [HACKERS] Re: database system identifier differs between the primary and standby Thanks a lot. I got the idea now. Rajib Deka SIEMENS Ltd. Robert V Chandran Tower, First Floor, West Wing, #149, Velechery Tambaram Main Road, Pallikaranai, Chennai-100, INDIA. www.siemens.com Mob: +91-9176780669 | E-Mail: rajib.d...@siemens.com -----Original Message----- From: Cédric Villemain [mailto:cedric.villemain.deb...@gmail.com] Sent: Thursday, April 21, 2011 9:56 PM To: Robert Haas Cc: Simon Riggs; Deka, Rajib IN MAA SL; pgsql-hackers Subject: Re: [HACKERS] Re: database system identifier differs between the primary and standby 2011/4/21 Robert Haas <robertmh...@gmail.com>: > On Thu, Apr 21, 2011 at 6:38 AM, Simon Riggs <si...@2ndquadrant.com> wrote: >> On Thu, Apr 21, 2011 at 10:31 AM, rajibdk <rajib.d...@siemens.com> wrote: >>> What does that database system identifier means? Is it related to DB >>> transactions' or unique to a version? >> >> Regrettably, it means you didn't follow the documented procedure. >> >> It isn't possible to do it any other way, so those questions are a >> distraction. > > I think they are perfectly good questions. If someone is trying to > understand how our product works, we should encourage that. Agree those are perfectly good question to ask on -general. (but on hackers it looks excessive) Rajib: this is relative to initdb, it produces one key to be able to check later if postgresql is restoring the good files. ( from sources : /* * Unique system identifier --- to ensure we match up xlog files with the * installation that produced them. */ ) Robert, Please don't add confusion to your signature : PostgreSQL is a community project not an enterprise product. > > -- > Robert Haas > EnterpriseDB: http://www.enterprisedb.com > The Enterprise PostgreSQL Company > > -- > Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) > To make changes to your subscription: > http://www.postgresql.org/mailpref/pgsql-hackers > -- Cédric Villemain 2ndQuadrant http://2ndQuadrant.fr/ PostgreSQL : Expertise, Formation et Support Important notice: This e-mail and any attachment there to contains corporate proprietary information. If you have received it by mistake, please notify us immediately by reply e-mail and delete this e-mail and its attachments from your system. Thank You. -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
