Re: Pg/CyberCluster test results - Mailing list pgsql-admin

From RW
Subject Re: Pg/CyberCluster test results
Date
Msg-id 48AEC4A7.6050508@tauceti.net
Whole thread Raw
In response to Pg/CyberCluster test results  (CG <cgg007@yahoo.com>)
Responses Re: Pg/CyberCluster test results  (RW <postgres@tauceti.net>)
Re: Pg/CyberCluster test results  (Andrew Sullivan <ajs@commandprompt.com>)
List pgsql-admin
I hoped that it would be easier to get the nodes back in sync
but it seems that all Postgres Multi-Master solutions are not
reliable at the moment. I've planed to test CyberCluster
this weekend but I already suspected that this rsync solutions
have some shortcomings. Sniff...

It seems that we have to wait for PGCluster-II which isn't a
"shared nothing" solution. Instead all files are on a shared
medium like SAN or iSCSI and all instances uses this medium
(similar to Oracle).

Robert

CG wrote:
> I've been testing Cybercluster (which is a modified PgCluster) ... I have two back-end databases, one load balancer,
andone replicator. I've been testing failover and rebuilding a degraded cluster, and I'm finidng that it is REALLY easy
forthe two back-ends to get out of sync with each other. This is very disturbing. I was wondering if anyone has
experiencewith solving this problem. 
>
>
>
>
>


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