| From: | Josh Berkus <josh(at)agliodbs(dot)com> |
|---|---|
| To: | sfpug(at)postgresql(dot)org |
| Cc: | Quinn Weaver <quinn(at)fairpath(dot)com> |
| Subject: | Re: Sequoia? |
| Date: | 2007-02-05 21:44:32 |
| Message-ID: | 200702051344.32695.josh@agliodbs.com |
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| Lists: | sfpug |
Quinn,
> So basically it claims to slice bread, perform cold fusion, and solve
> the database replication/failover problem, with zero data loss _and_
> without making you change your app code. I'm wondering if anyone has
> tried it and can say whether it lives up to the promise.
a) It's JDBC-only.
b) Most of the management/adminstration stuff is proprietary, and comes
with the for-pay UNI/Cluster, not the for-free Sequoia
c) It's statement-based replication, which means that it's only scalable
for workloads which are 90% or more reads. For DBs with significant
numbers of writes, Sequoia will be slower than a single server.
d) The HA/Failover capabilities are pretty good.
--
--Josh
Josh Berkus
PostgreSQL @ Sun
San Francisco
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