| From: | Tom Samplonius <tom(at)sdf(dot)com> |
|---|---|
| To: | Valter Mazzola <txian(at)hotmail(dot)com> |
| Cc: | pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: Scalability, Clustering |
| Date: | 2000-09-09 20:25:22 |
| Message-ID: | Pine.BSF.4.05.10009091319340.9637-100000@misery.sdf.com |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-hackers |
On Sat, 9 Sep 2000, Valter Mazzola wrote:
> If PostgreSQL Inc. will do a replication server, will be possible?
>
> And Mariposa (http://mariposa.CS.Berkeley.EDU/download.html) ?
>
> My question isn't an academic one, i (probably WE) really need this feature.
>
> thank you in advance for you reply.
Depends on what kind of scalability you need. Replication does not
usually equal scalability.
I know that someone was working on a commercial extension to PostgreSQL
to add clustering based on a shared disk system. Basically he was added a
raw storage manager to PostgreSQL plus a lock manager to co-oridinate
access to the shared disk. That way the two nodes could co-ordinate
access to the shared disk. This is very similar to Oracle Parallel
Server.
Replication is a different beast.
Tom
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