Re: DB fails to start: "Could not read from file "pg_clog/0003" at offset 212992: No error.

[Raghavendra <raghavendra.rao@xxxxxxxxxxxxxxxx>]

I think you need to download windows version DD and use it.

http://www.chrysocome.net/dd

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Regards,

Raghavendra

EnterpriseDB Corporation

Blog: http://raghavt.blogspot.com/

On Mon, Jul 16, 2012 at 7:25 PM, raghu ram <raghuchennuru@xxxxxxxxx> wrote:

On Mon, Jul 16, 2012 at 5:44 PM, Olga Vingurt <olgavi@xxxxxxxxxxxxxx> wrote:

Hi,

 

We are using PostgreSQL 8.3 on Windows Server.

The db crashed and now it fails to start up.

 

The error is:

FATAL:  could not access status of transaction 4020264

DETAIL:  Could not read from file "pg_clog/0003" at offset 212992: No error.

 

Additional log from event viewer:

LOG:  database system was interrupted; last known up at 2012-07-12 11:35:00 CEST

 

 

How can we recover from the current state?

 

Please perform below steps:

1. Backup the current pg_clog/0003 file in different directory

2. Create a file by assumption of  make the uncommitted record as they haven't been committed. command as follows:

dd if=/dev/zero of=<data directory location>/pg_clog/0003   bs=256K count=1 

3. Start the Cluster

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Thanks & Regards,

Raghu Ram

EnterpriseDB Corporation

Blog:http://raghurc.blogspot.in/