| From: | Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> |
|---|---|
| To: | Rod Taylor <rbt(at)rbt(dot)ca> |
| Cc: | Jonathan Stanton <jonathan(at)cnds(dot)jhu(dot)edu>, Al Sutton <al(at)alsutton(dot)com>, Darren Johnson <darren(at)up(dot)hrcoxmail(dot)com>, Jan Wieck <JanWieck(at)Yahoo(dot)com>, shridhar_daithankar(at)persistent(dot)co(dot)in, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Update on replication |
| Date: | 2002-12-17 18:17:23 |
| Message-ID: | 200212171817.gBHIHNP18044@candle.pha.pa.us |
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| Lists: | pgsql-hackers |
Rod Taylor wrote:
-- Start of PGP signed section.
> > o People are evaluating the Postgres-R approach and comparing
> > it to more traditional 2-phase commit replication.
>
> Not that the Postgres-R approach can replace 2-phase commit methods.
>
> 2PC is still needed for support with external transaction managers (XA
> drivers for JDBC).
Yes, good point. Let me add that eventually, I think we will have:
sync replication (Postgres-R?)
async replication, using PITR
PITR
two-phase commit for distributed transactions
--
Bruce Momjian | http://candle.pha.pa.us
pgman(at)candle(dot)pha(dot)pa(dot)us | (610) 359-1001
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