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From Doug Meil <doug.m...@explorysmedical.com>
Subject Re: HBase - is it time to add another node?
Date Tue, 10 Jan 2012 14:27:01 GMT

Hi there-

You probably want to see the Hbase Book/RefGuide and the Performance and
Operational Mgt chapters.  Capture and track metrics in tools like
OpenTSDB, for example.

http://hbase.apache.org/book.html




On 1/10/12 8:34 AM, "Ronen Itkin" <ronen@taykey.com> wrote:

>Hey all,
>
>I have a small cluster of HBase, Hadoop HDFS, Zookeeper that is being
>deployed on the same nodes (kind of a common best practice for small
>clusters).
>Everything is quite straight forward and works fine.
>
>I am wondering how can I efficiently predict the right time to add another
>node from the HBase performance (read/write) perspective ?
>Is there any suggested amount of regions per region server I should
>follow?
>number of requests per region service? any other "load" parameters?
>
>So as long as the data keeps increasing, I guess performance will be
>decreasing.
>moreover. I find it hard to answer the question of "when should I add
>another Hbase node?" because performance decrease can be caused by other
>reasons
>like "hots pots" for example, which demand a special care what not another
>node.
>
>Suggestions?
>
>Thank you all!!
>
>-- 
>*
>Ronen Itkin*
>Taykey | www.taykey.com



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