On Sat, 30 Dec 2006, Dennis wrote:
I was thinking of maybe just having 2nd location receive a PG dump (full
or incremental) every so often (an hour to 6 hours) and if the main
location fails majorly, restore the PG cluster from the dump and switch
DNS settings on the actual sites. I can make sure all website files are
always in sync on both locations.
Well, first off, you can just rsync your archived WAL files. That may be
easier than playing with pg_dump:
http://www.postgresql.org/docs/8.2/interactive/continuous-archiving.html
But second, and more important given your data-loss desires, if you do it
this way you have a window where you can experience data loss.
Specifically, after a transaction is committed, that commit will be at
risk until the next transfer has completed.
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