Re: Weird error when setting up streaming replication

This pair of servers aren't replacing anything, they are new, empty
servers. Before starting the slave at all, I'm copying the entire data
filestructure over to it via rsync. I'm doing almost exactly what is
described here:
http://wiki.postgresql.org/wiki/Binary_Replication_Tutorial#Binary_Replication_in_6_Steps.
The only different is that I've tweaked the paths on the rsync to be
appropriate to my system layout. I've even gone so far as to delete
everything in the data dir except for the pg_xlog directory before syncing
everything over to make sure it wasn't caused by something not getting
overwritten when it was supposed to.

On Thu, Aug 8, 2013 at 6:23 PM, Michael Paquier
<michael(dot)paquier(at)gmail(dot)com>wrote:

> On Fri, Aug 9, 2013 at 8:55 AM, Quentin Hartman
> <qhartman(at)direwolfdigital(dot)com> wrote:
> > 2013-08-08 23:47:30 GMT LOG: WAL file is from different database system
> > 2013-08-08 23:47:30 GMT DETAIL: WAL file database system identifier is
> > 5909892614333033983, pg_control database system identifier is
> > 5909892824786287231.
> It looks that you are not able to detect valid checkpoint records when
> replaying WAL because your new system has been initialized with a
> fresh initdb, symbolized by the errors above. You should build your
> new node using a base backup or a snapshot of the data folder of the
> node you are trying to replace.
> --
> Michael
>