| From: | Lonni J Friedman <netllama(at)gmail(dot)com> |
|---|---|
| To: | Mike Roest <mike(dot)roest(at)replicon(dot)com> |
| Cc: | pgsql-general(at)postgresql(dot)org |
| Subject: | Re: initial sync of multiple streaming slaves simultaneously |
| Date: | 2012-09-19 16:03:09 |
| Message-ID: | CAP=oouHx_3DB6Cwe+BD=4kWQ+0X-_DnNj9WM+Z5zUD+yrRDFdw@mail.gmail.com |
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| Lists: | pgsql-general |
On Wed, Sep 19, 2012 at 8:59 AM, Mike Roest <mike(dot)roest(at)replicon(dot)com> wrote:
> Hey Everyone,
> We currently have a 9.1.5 postgres cluster running using streaming
> replication. We have 3 nodes right now
>
> 2 - local that are setup with pacemaker for a HA master/slave set failover
> cluster
> 1 - remote as a DR.
>
> Currently we're syncing with the pretty standard routine
>
> clear local datadir
> pg_start_backup
> sync datadir with fast-archiver (https://github.com/replicon/fast-archiver)
> pg_stop_backup
> start slave
>
> We use the streaming replication with wal_keep_segments set to 1000 to get
> the required WAL files to the slaves.
>
> With this procedure we can currently only sync one of the slaves at a time
> if we failover. As when the second machine goes to start the sync it errors
> out cause trying to run pg_start_backup fails.
Specifically what is the error?
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