Re: Teaching pg_receivexlog to follow timeline switches
Heikki Linnakangas <hlinnakangas@vmware.com>
From: Heikki Linnakangas <hlinnakangas@vmware.com>
To: Phil Sorber <phil@omniti.com>
Cc: PostgreSQL-development <pgsql-hackers@postgresql.org>
Date: 2013-01-18T12:55:19Z
Lists: pgsql-hackers
On 18.01.2013 06:38, Phil Sorber wrote: > On Tue, Jan 15, 2013 at 9:05 AM, Heikki Linnakangas > <hlinnakangas@vmware.com> wrote: >> Now that a standby server can follow timeline switches through streaming >> replication, we should do teach pg_receivexlog to do the same. Patch >> attached. > > Is it possible to re-use walreceiver code from the backend? > > I was thinking that it would actually be very useful to have the whole > replication functionality modularized and in a standalone binary that > could act as a replication proxy and WAL archiver that could run > without all the overhead of an entire PG instance There's much sense in trying to extract that into a stand-along module. src/bin/pg_basebackup/receivelog.c is about 1000 lines of code at the moment, and it looks quite different from the corresponding code in the backend, because it doesn't have all the backend infrastructure available. - Heikki