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Matthew wrote:
> Hey all, new postgres user here. We are trying to setup/research an
> HA/Replicated solution with Postrgresql between a datacenter in LA and a
> d.c. in NY.
>
> We have a private LAN link between the two D.C.'s with a max round-trip
> of 150ms.
>
> We will have a web server at each d.c. (among other servers) that will
> write/read to/from the local LAN DB. On writes, that data should be
> xmited to the other data center so that if, for whatever reason, my
> website request was sent to LA instead of NY, all my session information
> etc will still exist.
>
> I was looking into PGCluster 1.7rc5 but their website states:
>
> "...running one Cluster DB node in a different geographical location is
> not what PGCluster was built for..."
>
> Does anyone have an idea? We cannot possibly be the only company needing
> to do this.
No, but you are the only company that likely is trying to do it cross
continent ;) :).
You can not do multi master cross continent reliably. There are ways
using custom caches etc, to pull all session info into a geo-redundant
data store though.
Sincerely,
Joshua D. Drake
>
> Thanks,
> Matthew
>
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> TIP 2: Don't 'kill -9' the postmaster
>
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