| From: | Richard Huxton <dev(at)archonet(dot)com> |
|---|---|
| To: | Lowell(dot)Hought(at)faa(dot)gov |
| Cc: | pgsql-general(at)postgresql(dot)org |
| Subject: | Re: Database syncronization |
| Date: | 2005-08-09 14:49:58 |
| Message-ID: | 42F8C296.9030400@archonet.com |
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| Lists: | pgsql-general |
Lowell(dot)Hought(at)faa(dot)gov wrote:
> What is the most effective method for syncronizing a database from a main
> to a backup machine? I am now running 8.0. Is it necessary to drop the
> database from the secondary machine and restore it from a dump of the
> primary?
Depends on how often/up-to-date you want to be. In order of delay, they are:
1. pg_dump / pg_restore
2. PITR + WAL-file shipping
3. Replication (e.g. Slony)
Check the manuals for the first two. There are other replication
projects available if Slony isn't quite right for you.
--
Richard Huxton
Archonet Ltd
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