Hallo Lars,

thanks for your response. I had a discussion with my tutor about the cluster-replication feature. He thought, this is only for backup purposes. And I didn't find the decisive hint, that the slave can be used for read-only queries.

Jens

Am 07.09.2011 18:51, schrieb lars hofhansl:
Hallo Jens,

yes, you can use the slave cluster for read-only queries (but be aware that the 
replication is asynchronous, which means the slave can be behind).
Beyond setting up replication there is no other setup needed for this.

We (Salesforce.com) might be adding code to supporting multiple slaves, but it 
is not clear when we'll get to that, yet.


-- Lars



________________________________
From: Jens Hartung<hb...@jens-hartung.de>
To: HBase Mailinglist<user@hbase.apache.org>
Sent: Wednesday, September 7, 2011 4:46 AM
Subject: Question about HBase Cluster Replication

Hello everyone,

I have to evaluate HBase for a university project. Therefore I read the cluster 
replication document on HBase main site ( 
http://hbase.apache.org/replication.html ).

According to the missing feature, there can be only one slave cluster 
currently. Can the slave cluster be used for read only-access (eg. for 
load-balancing cases)? When yes, how I have to configure the clusters?

Greetings, Jens

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