Re: Postmaster cannot start

> What i done is i use the last backup file and restore it on new $PGData
> Directory, now it
> ok. just curious how this thing can happen? maybe i asking a stupid
> question since i using
> quite old Postgresql Version but hoping this problem won't come back
> again.
> Thanks for your help to clear some doubt on my mind.

> Regards
> Beh

----- Original Message -----
From: "Tom Lane" <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: "Chun Yit(Chronos)" <ivanbeh(at)chronos(dot)com(dot)my>
Cc: <pgsql-general(at)postgresql(dot)org>
Sent: Tuesday, May 16, 2006 1:03 PM
Subject: Re: [GENERAL] Postmaster cannot start

> "Chun Yit\(Chronos\)" <ivanbeh(at)chronos(dot)com(dot)my> writes:
>> PANIC: btree_delete_page_redo: uninitialized right sibling
>> LOG: startup process (PID 5043) was terminated by signal 6
>> LOG: aborting startup due to startup process failure
>
> That's pretty ugly :-(. I think your only hope to get out of it is to
> use pg_resetxlog. After that, you will undoubtedly need to reindex
> pg_class in the problem database. After that, if you're very lucky,
> you'll be able to pg_dump. If you can get a clean dump, then initdb
> and reload --- it would not be wise to keep using the database.
>
> I'd suggest first taking a filesystem backup of the $PGDATA directory as
> it stands, so you can get back to where you are if this fails to work.
>
> Assuming you can get back up and running, you should look into (a) why
> you are running an old, known-buggy PG release, and (b) whether you have
> flaky hardware, as per comments already made upthread.
>
> regards, tom lane
>