Re: Replication status in logical replication

Simon Riggs <simon@2ndquadrant.com>

From: Simon Riggs <simon@2ndquadrant.com>
To: Masahiko Sawada <sawada.mshk@gmail.com>
Cc: PostgreSQL-development <pgsql-hackers@postgresql.org>
Date: 2017-04-11T20:31:42Z
Lists: pgsql-hackers
On 22 March 2017 at 02:50, Masahiko Sawada <sawada.mshk@gmail.com> wrote:

> When using logical replication, I ran into a situation where the
> pg_stat_replication.state is not updated until any wal record is sent
> after started up. For example, I set up logical replication with 2
> subscriber and restart the publisher server, but I see the following
> status for a while (maybe until autovacuum run).
...

> Attached patch fixes this behavior by updating WalSndCaughtUp before
> trying to read next WAL if already caught up.

Looks like a bug that we should fix in PG10, with backpatch to 9.4 (or
as far as it goes).

Objections to commit?

-- 
Simon Riggs                http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services


Commits

  1. Make logical WAL sender report streaming state appropriately