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From: A J <s5aly@yahoo.com>
To: pgsql-admin@postgresql.org
Subject: Switchover of Master and Slave roles
Date: Tue, 7 Jun 2011 09:32:31 -0700 (PDT)
Message-ID: <693391.31715.qm@web120020.mail.ne1.yahoo.com> (raw)

Hello,
I am trying to switch the master and slave roles in a test I am doing with 
streaming replication in 9.1 beta.

To start with, I have one master (N1 node) and one slave (N2 node).

I stop N1 and promote N2 as primary (by touching the trigger file).
Now I wish for N1 to come back up as slave of N2. How should I do that ?

I tried creating a recovery.conf in N1's directory, along with cleaning up its 
pg_xlog and pg_log.
But when I start N1 and try to connect to it, I get the message:
psql: FATAL:  the database system is starting up

And the log file of N1 says:
FATAL:  timeline 2 of the primary does not match recovery target timeline 1

Any ideas on what could I be missing ?

Thanks,
AJ

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