| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> |
| Cc: | Martin Fandel <martin(dot)fandel(at)alphyra-evs(dot)de>, pgsql-admin(at)postgresql(dot)org |
| Subject: | Re: DRDB? |
| Date: | 2005-06-27 14:19:00 |
| Message-ID: | 6245.1119881940@sss.pgh.pa.us |
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| Lists: | pgsql-admin |
Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> writes:
> Martin Fandel wrote:
>> is DRDB (http://www.drbd.org/) a recommended replication-solution for
>> PostgreSQL? I asked some PostgreSQL-People and DRDB-People on the
>> Linux-Tag in germany. But I'm not very assured about this solution.
> Uh, we really don't _recommend_ replication solutions. However, I will
> say I have heard of Slony, but never of DRDB. It seems DRDB replicates
> the file system blocks to another machine.
I have not probed further than the site's top page, but unless DRBD
offers some pretty strong guarantees about physical write order on the
master being duplicated on the slave, it won't work reliably for
Postgres.
regards, tom lane
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