Re: Streaming replication, and walsender during recovery
From:
Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com>
To:
Simon Riggs <simon(at)2ndQuadrant(dot)com>
Cc:
Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Fujii Masao <masao(dot)fujii(at)gmail(dot)com>,
PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject:
Re: Streaming replication, and walsender during recovery
Simon Riggs wrote:
> I'm a little worried the feature set of streaming rep isn't any better
> than what we have already.
Huh? Are you thinking of the "Record-based Log Shipping" described in
the manual, using a program to poll pg_xlogfile_name_offset() in a tight
loop, as a replacement for streaming replication? First of all, that
requires a big chunk of custom development, so it's a bit of a stretch
to say we have it already. Secondly, with that method, the standby still
still be replaying the WAL one file at a time, which makes a difference
with Hot Standby.
--
Heikki Linnakangas
EnterpriseDB http://www.enterprisedb.com
