Re: Synchronous replication & Hot standby patches
От | Simon Riggs |
---|---|
Тема | Re: Synchronous replication & Hot standby patches |
Дата | |
Msg-id | 1235595824.16176.343.camel@ebony.2ndQuadrant обсуждение исходный текст |
Ответ на | Re: Synchronous replication & Hot standby patches (Heikki Linnakangas <heikki.linnakangas@enterprisedb.com>) |
Ответы |
Re: Synchronous replication & Hot standby patches
Re: Synchronous replication & Hot standby patches |
Список | pgsql-hackers |
On Wed, 2009-02-25 at 22:45 +0200, Heikki Linnakangas wrote: > Robert Haas wrote: > > I think the more relevant question right now is whether the work Fujii > > Masao is planning to do for 8.5 is reponsive to the following comment > > from Heikki: > > > > # IMHO, the synchronous replication isn't in such good shape, I'm > > afraid. I've said > > # this before, but I'm not happy with the "built from spare parts" > > nature of it. You > > # shouldn't have to configure an archive, file-based log shipping using rsync or > > # whatever, and pg_standby. All that is in addition to the direct > > connection between > > # master and slave. The slave really should be able to just connect to > > the master, and > > # download all the WAL it needs directly. That's a huge usability > > issue if left as is, > > # but requires very large architectural changes to fix. > > I believe so, see second bullet point in: > > http://archives.postgresql.org/message-id/3f0b79eb0902240751t13231593g17fbef70664d4444@mail.gmail.com That is exactly what I am against. Note the words "get rid of". This prevents parallel data transfer, use of split mirrors and various other techniques. It sounds neater, but it implies removal of useful features. -- Simon Riggs www.2ndQuadrant.comPostgreSQL Training, Services and Support
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