Re: Wrong SYSID in WAL segment

Thank you for the reply.

This is an embedded system and is isolated (only the master and slave
nodes are reachable within this setup). Is there any way either the
slave or the master node changes the pg_control content? The Master node
did not restart at all when this happened. Moreover, if the slave is
rebooted, the problem goes away.

Regards,

Youssef

-----Original Message-----
From: Tom Lane [mailto:tgl(at)sss(dot)pgh(dot)pa(dot)us]
Sent: Monday, October 25, 2010 4:12 PM
To: Latrous, Youssef
Cc: pgsql-general(at)postgresql(dot)org
Subject: Re: [GENERAL] Wrong SYSID in WAL segment

"Latrous, Youssef" <YLatrous(at)BroadViewNet(dot)com> writes:
> 1) Why one of the segments has a different SYSID (knowing that all WAL
> segments are originating from the same node)?

They aren't. Somewhere you've got WAL segments slipping in from a
different database cluster.

regards, tom lane