From: | Venkata Balaji N <nag1010(at)gmail(dot)com> |
---|---|
To: | Colin Morelli <colin(dot)morelli(at)gmail(dot)com> |
Cc: | pgsql-general <pgsql-general(at)postgresql(dot)org> |
Subject: | Re: Logical Decoding Failover |
Date: | 2016-08-07 05:50:08 |
Message-ID: | CAEyp7J_08ZFwV8iqcLOitqNNi2rh7Byjq-23_PbM6HS7pW+Yiw@mail.gmail.com |
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On Sat, Aug 6, 2016 at 1:17 PM, Colin Morelli <colin(dot)morelli(at)gmail(dot)com>
wrote:
> Hey all,
>
> I'm using logical decoding in my application to capture change streams and
> ship them to Kafka. However, logical replication slots aren't included in
> the WAL and thus don't make it to replicas. In the case of a failover, it's
> not clear what (if anything) can be done to continue receiving a change
> stream.
>
> I noticed there was a failover slot patch that looks like it won't be
> making it for 9.6 (if at all), but does anyone else have suggestions for
> handling failover + logical decoding? Is there an answer, or is it limited
> to being a very manual process for now?
>
Yes, as of i know, It is a manual process for now. Another alternative you
can consider (if possible at all) would be a tool like PgPool-II which is
actually used for connection pooling, load balancing and automatic
failover. It may not make sense if you are do not wish to pool you
connections.
Regards,
Venkata B N
Fujitsu Australia
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