Re: Database Recovery - Mailing list pgsql-admin

From Mike C
Subject Re: Database Recovery
Date
Msg-id bd0eabd0710071858m3ea96e8fna7ffcda049b5ddc4@mail.gmail.com
Whole thread Raw
In response to Re: Database Recovery  (Tom Lane <tgl@sss.pgh.pa.us>)
Responses Re: Database Recovery  (Tom Lane <tgl@sss.pgh.pa.us>)
List pgsql-admin
On 10/8/07, Tom Lane <tgl@sss.pgh.pa.us> wrote:
> "Mike C" <smith.not.western@gmail.com> writes:
> > I have a corrupt database. I copied the database directory offsite and
> > restored from a backup. I'm now trying to recover data in the corrupt
> > database added since the last backup. Any advice on how to approach
> > this?
>
> If you're lucky, REINDEX might solve your problems.  The messages you
> showed are all about index corruption, which REINDEX can fix.  If you've
> got corruption in the tables themselves then you might be screwed, but
> try reindexing and see what happens ...

My problem is that I can't even start postmaster to perform the
reindex on now. As soon as I try start (via pg_ctl, 8.1.10):

 postgres_report[24165]: [1-1] LOG:  database system was interrupted
while in recovery at 2007-10-04 12:32:46 NZST
 postgres_report[24165]: [1-2] HINT:  This probably means that some
data is corrupted and you will have to use the last backup for
recovery.
 postgres_report[24165]: [2-1] LOG:  checkpoint record is at 520/66DDD00
 postgres_report[24165]: [3-1] LOG:  redo record is at 520/66DDD00;
undo record is at 0/0; shutdown FALSE
 postgres_report[24165]: [4-1] LOG:  next transaction ID: 334746303;
next OID: 32829
 postgres_report[24165]: [5-1] LOG:  next MultiXactId: 1; next
MultiXactOffset: 0
 postgres_report[24165]: [6-1] LOG:  database system was not properly
shut down; automatic recovery in progress
 postgres_report[24165]: [7-1] LOG:  redo starts at 520/66DDD50
 postgres_report[24165]: [8-1] LOG:  record with zero length at 520/6E2D130
 postgres_report[24165]: [9-1] LOG:  redo done at 520/6E2D100
 postgres_report[24165]: [10-1] PANIC:  failed to re-find parent key
in "24977" for split pages 230790/263989
 postgres_report[24164]: [1-1] LOG:  startup process (PID 24165) was
terminated by signal 6
Oct  4 12:32:57 serena postgres_report[24164]: [2-1] LOG:  aborting
startup due to startup process failure

Thanks,

Mike

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