Re: HOT standby with ONLY WAL shipping?

On Thu, Jun 12, 2014 at 1:01 PM, CS_DBA <cs_dba(at)consistentstate(dot)com> wrote:

> Hi All;
>
> We would like to setup a hot standby server with a forced delay.
> Is it possible to setup a hot standby based ONLY on WAL shipping and NOT
> use streaming replication?
>
> Thanks in advance
>
>
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The omnipitr tool can provide the delayed slave feature you're looking for.
https://github.com/omniti-labs/omnipitr/

Look into the --recovery-delay (-w) feature of the omnipitr-restore command
which is used in the recovery.conf of the slave
https://github.com/omniti-labs/omnipitr/blob/master/doc/omnipitr-restore.pod

Whether a slave is a hot standby is not determined by whether you're using
streaming replication or WAL replay. It is determined by setting the
parameter "hot_standby" on the slave and ensuring the master has a minimum
"wal_level" of "hot_standby" as well. So both streaming and wal replay
slaves can be hot standbys.

--
Keith Fiske
Database Administrator
OmniTI Computer Consulting, Inc.
http://www.keithf4.com