Re: initial sync of multiple streaming slaves simultaneously

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От Lonni J Friedman
Тема Re: initial sync of multiple streaming slaves simultaneously
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Msg-id CAP=oouHx_3DB6Cwe+BD=4kWQ+0X-_DnNj9WM+Z5zUD+yrRDFdw@mail.gmail.com
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Ответ на initial sync of multiple streaming slaves simultaneously  (Mike Roest <mike.roest@replicon.com>)
Ответы Re: initial sync of multiple streaming slaves simultaneously  (Mike Roest <mike.roest@replicon.com>)
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On Wed, Sep 19, 2012 at 8:59 AM, Mike Roest <mike.roest@replicon.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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