On 11/09/2011 07:02 PM, Ruslan A. Bondar wrote:
Hello all.
This is a first time I receive such an issue.
My database was corrupted some way.
Before you do ANYTHING else, make a copy of your database somewhere safe. See:
http://wiki.postgresql.org/wiki/Corruption
When I'm trying to access the database via psql I receive:
root@udb:/etc/bacula# psql -U bacula
psql: FATAL: could not read block 0 in file "base/16387/86057840": read only 0 of 8192 bytes
So I want to drop it, and recover from backup. But when I'm trying to drop the database I see:
postgres=# drop database bacula;
ERROR: could not access status of transaction 15892843
DETAIL: Could not open file "pg_subtrans/00F2": No such file or directory.
Is there any way to recover the database to working state, or drop it?
*ONLY* once you've made a full backup copy, you may be able to set zero_damaged_pages to get a usable dump.
Do you know what caused this? The missing files suggest it was probably file system corruption - was there a disk failure? fsck run with errors? Unexpected reboot on a RAID controller with a dead backup battery?
--
Craig Ringer
