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"PANIC: btree_split_redo: lost left sibling" problem

From: MStringham(at)tomax(dot)com
To: pgsql-admin(at)postgresql(dot)org
Subject: "PANIC: btree_split_redo: lost left sibling" problem
Date: 2008-12-04 18:27:37
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgsql-admin
This is my first post so hopefully I can provide all the information to 
get this solved.
Last night we ran out of disk space on our server and when I tried to 
start  pg_ctl I got this error:
 ** EnterpriseDB Dynamic Tuning Agent ************************
        * System Utilization: 66 %                                  *
        *   Database Version:                              *
        *   Operating System: Linux                                 *
        *                RAM: 7.56  GB                              *
        *      Shared Memory: 7.55  GB                              *
        * Max DB Connections: 100                                   *

2008-12-04 10:20:47 MST LOG:  database system was interrupted while in 
recovery at 2008-12-04 10:11:35 MST
2008-12-04 10:20:47 MST HINT:  This probably means that some data is 
corrupted and you will have to use the last backup for recovery.
2008-12-04 10:20:47 MST LOG:  starting archive recovery
2008-12-04 10:20:47 MST LOG:  restore_command = "cp 
/u01/home/enterprisedb/bkp/archivedir/%f %p"
cp: cannot stat `/u01/home/enterprisedb/bkp/archivedir/00000003.history': 
No such file or directory
cp: cannot stat 
`/u01/home/enterprisedb/bkp/archivedir/00000003000000350000002D': No such 
file or directory
2008-12-04 10:20:47 MST LOG:  checkpoint record is at 35/B74729F0
2008-12-04 10:20:47 MST LOG:  redo record is at 35/B74729F0; undo record 
is at 0/0; shutdown FALSE
2008-12-04 10:20:47 MST LOG:  next transaction ID: 24775805; next OID: 
2008-12-04 10:20:47 MST LOG:  next MultiXactId: 2952; next 
MultiXactOffset: 6359
2008-12-04 10:20:47 MST LOG:  automatic recovery in progress
2008-12-04 10:20:47 MST LOG:  redo starts at 35/B7472A40
2008-12-04 10:20:47 MST PANIC:  btree_split_redo: lost left sibling
2008-12-04 10:20:47 MST LOG:  startup process (PID 2520) was terminated by 
signal 6
2008-12-04 10:20:47 MST LOG:  aborting startup due to startup process 

I went to the archivedir directory and indeed the files mentioned above 
are not there.   I did go to the pg_xlog folder and found that the files 
listed above are there - this directory has a lot of data.  I wanted to do 
a PITR but to do this I need the database running.  Here are the details:
EnterpriseDB version:
Server:  Red Hat Enterprise Linux AS release 3 (Taroon Update 7)

I'm at a loss what to do.  I've researched and couldn't find any answers. 
I don't have a lot of space to work with still because I was going to 
remove a bunch of old schemas that were no longer used but I cannot do 
that until the db is up and running.  Any ideas on what do do here? 


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