Do the queries here help?
http://wiki.postgresql.org/wiki/Lock_Monitoring
On Tue, May 22, 2012 at 12:42 PM, Lonni J Friedman <netllama@gmail.com> wrote:
> Greetings,
> I have a 4 server postgresql-9.1.3 cluster (one master doing streaming
> replication to 3 hot standby servers). All of them are running
> Fedora-16-x86_64. Last Friday I upgraded the entire cluster from
> Fedora-15 with postgresql-9.0.6 to Fedora-16 with postgresql-9.1.3.
>
> I'm finding that I cannot runpg_basebackup at all, or it blocks all
> SQL queries from running until pg_basebackup has completed (and the
> load on the box just takes off to over 75.00). By "blocks" I mean
> that any query that is submitted just hangs and does not return at all
> until pg_basebackup has stopped. I'm assuming that this isn't
> expected behavior, so I'm rather confused on what is going on. The
> command that I'm issuing is:
> pg_basebackup -v -D /mnt/backups/backups/tmp0 -x -Ft -U postgres
>
> Can someone provide some guidance on how to debug this?
>
> thanks!
>
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