On Fri, Jan 15, 2016 at 1:02 PM, Andreas Joseph Krogh <andreas@visena.com> wrote:
I see that wal_level = 'logical', and that is a problem for us as we already use wal_level = 'hot_standby' on this installation as it replicates to another server.
Is it possible to use pglogical together with hot_standby streaming-replication?
Well, the wal_level change is just a matter of database restart: you got to do that once in a while anyway, e.g. for minor version updates. I would expect you only need this wal_level on the walsender side, thus for pglogical_output, the logical decoding plugin.
My point is that we cannot not have streaming-replication, so we need to keep wal_level = 'hot_standby' AFAIU. Is there a way to do both streaming-replication and pglogical for just replicating one of may databases in the same cluster?
But logical is "greater than" hot_standby, so you can still have streaming replication with wal_level = logical.
