Re: Server not Starting

[raghavendra t <raagavendra.rao@xxxxxxxxx>]

Hi Shoaib,

 

I have the file with postgres permission on it, but , surprisingly its 0k .

 

[postgres@dbarhel564 ~]# cd /usr/local/pgsql/mypg/pg_clog/
[postgres@dbarhel564 pg_clog]# ll -lh
total 0
-rw-rw-r-- 1 postgres postgres 0 Apr 12 12:54 0000
[postgres@dbarhel564 pg_clog]#

any step to change this.

 

regards

raghavendra

 

 

On Wed, Apr 14, 2010 at 12:39 PM, Shoaib Mir <shoaibmir@xxxxxxxxx> wrote:

On Wed, Apr 14, 2010 at 5:00 PM, raghavendra t <raagavendra.rao@xxxxxxxxx> wrote:

Hi Shoaib,

 

Tried with pg_resetxlog

 

 

[postgres@dbarhel564 bin]$ pg_resetxlog /usr/local/pgsql/mypg/
The database server was not shut down cleanly.
Resetting the transaction log might cause data to be lost.
If you want to proceed anyway, use -f to force reset.

[postgres@dbarhel564 bin]$ pg_resetxlog -f /usr/local/pgsql/mypg/
Transaction log reset

[postgres@dbarhel564 bin]$ pg_ctl start
server starting

[postgres@dbarhel564 bin]$ LOG:  database system was shut down at 2010-04-12 12:26:15 IST
FATAL:  could not access status of transaction 889
DETAIL:  Could not read from file "pg_clog/0000" at offset 0: Success.
LOG:  startup process (PID 1335) exited with exit code 1
LOG:  aborting startup due to startup process failure

In that case, I would go and see if there is a clog file DB server is complaining for there or not i.e. "pg_clog/0000" and if it is check for permissions with PG user. Do you by any chance deleted stuff from pg_clog folder?

If they are not there then create 256k files for each of them filled with zeros that server complaints for like the we just saw "pg_clog/0000", remember this way you might be able to start the server but you will lose the data from the time after your last checkpoint.

-- 

Shoaib Mir
http://shoaibmir.wordpress.com/