| 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 |
| Date: | 2010-01-28 18:49:21 |
| Message-ID: | 4B61DC31.8020404@enterprisedb.com |
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| Lists: | pgsql-hackers |
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
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