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Posted to user@hbase.apache.org by Sagar Naik <sn...@splunk.com> on 2014/01/18 02:22:58 UTC

Balancer with replica affinity

Hi,
I am doing some perf testing using various filters.
I was wondering that when I do rolling-restart, I might lose the datanode-regionserver block affinity.
Is this a valid concern ?
If so is there a balancer which will take into account the hdfs-block replica location and position the rs over there




-Sagar

Re: Balancer with replica affinity

Posted by Ted Yu <yu...@gmail.com>.

Please see this thread:
http://search-hadoop.com/m/ZXnXG1tQu4s/Rolling+restart+retain+hbase&subj=Rolling+Restart+and+Load+Balancer+

Note the --reload option. 

Cheers

On Jan 17, 2014, at 5:22 PM, Sagar Naik <sn...@splunk.com> wrote:

> Hi,
> I am doing some perf testing using various filters.
> I was wondering that when I do rolling-restart, I might lose the datanode-regionserver block affinity.
> Is this a valid concern ?
> If so is there a balancer which will take into account the hdfs-block replica location and position the rs over there
> 
> 
> 
> 
> -Sagar