Re: safe to clear pg_xlog archive status directory?

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Rather than manually syncing the master to the slave, it would be better to use pg_basebackup (http://www.postgresql.org/docs/9.1/static/app-pgbasebackup.html).  This will copy the running master to the slave, and assuming the recovery.conf is in place on the slave, it can be restarted into recovery mode almost immediately.

 

From: pgsql-admin-owner@xxxxxxxxxxxxxx [mailto:pgsql-admin-owner@xxxxxxxxxxxxxx] On Behalf Of Burgholzer, Robert (DEQ)
Sent: Thursday, December 27, 2012 10:49 AM
To: pgsql-admin@xxxxxxxxxxxxxx
Subject: safe to clear pg_xlog archive status directory?

 

I am working through getting a warm standby up and running.  I have fumbled a bit, including having a non responsive standby node for a hile, which led (I think) to a big pile of “ready” files in the “pg_xlog/archive_status” directory.  My thought is that I need to start fresh, so here is the process that I envision (someone please let me know if I am making mental errors):

 

#1 – turn off archiving on the master, restart

#2 – shut down postgresql on the replicant

#3 – clear the pg_xlog/archive_status/ dir, with an “rm pg_xlog/archive_status/*” command

#4 – perform a fresh rsync backup of my master to my replicant

#5 – bring my replicant back up into standby mode

#6 – re-enable archiving on the master and restart the postmaster

 

Thanks in advance,

r.b.

 

Robert  Burgholzer

Surface Water Modeler
Virginia DEQ Office of Surface and Ground Water Supply

804-869-3066

 


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