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From "Ramkrishna.S.Vasudevan" <ramkrishna.vasude...@huawei.com>
Subject RE: Distribution of regions to servers
Date Wed, 26 Sep 2012 03:53:01 GMT
Hi Dan

Generally if the region distribution is not done properly as per the need
then always we end up in region server getting overloaded due to region

Write thro put can go down.  It is not like the coprocessor performance
alone is slow.

Please check if the regions are properly balanced.  If you are using 0.92
and above you can use the options to balance by table or balance by region


> -----Original Message-----
> From: Dan Han [mailto:dannahan2008@gmail.com]
> Sent: Wednesday, September 26, 2012 5:56 AM
> To: user@hbase.apache.org
> Subject: Distribution of regions to servers
> Hi all,
>    I am doing some experiments on HBase with Coprocessor. I found that
> the
> performance
> of Coprocessor is impacted much by the distribution of the regions. I
> am
> kind of interested in
> going deep into this problem and see if I can do something.
>   I only searched out the discussion in the following link.
> http://search-
> hadoop.com/m/Vjhgj1lqw7Y1/hbase+distribution+region&subj=distribution+o
> f+regions+to+servers
> I am wondering if there is any further discussion or any on-going work?
> Can
> someone point it to me if there is?
> Thanks in advance.
> Best Wishes
> Dan Han

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