Re: Streaming replication, and walsender during recovery
От | Simon Riggs |
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Тема | Re: Streaming replication, and walsender during recovery |
Дата | |
Msg-id | 1264705099.24669.11475.camel@ebony обсуждение исходный текст |
Ответ на | Re: Streaming replication, and walsender during recovery (Heikki Linnakangas <heikki.linnakangas@enterprisedb.com>) |
Список | pgsql-hackers |
On Thu, 2010-01-28 at 20:49 +0200, Heikki Linnakangas wrote: > 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. It's been part of Skytools for years now... > Secondly, with that method, the standby still > still be replaying the WAL one file at a time, which makes a difference > with Hot Standby. I'm not attempting to diss Streaming Rep, or anyone involved. What has been done is good internal work. I am pointing out and requesting that we should have a little more added before we stop for this release. -- Simon Riggs www.2ndQuadrant.com
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