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From Ted Yu <yuzhih...@gmail.com>
Subject Re: Region balancing query
Date Fri, 13 Feb 2015 16:46:17 GMT
How many tables are there in your cluster ?

Is the cluster balanced overall (in terms of number of regions per server)
but this table is not ?

What happens (check master log) when you issue 'balancer' command through
shell ?


On Fri, Feb 13, 2015 at 8:19 AM, Shahab Yunus <shahab.yunus@gmail.com>

> CDH 5.3
> HBase 98.6
> We are writing data to an HBase table through a M/R job. We pre split the
> table before each job run. The problem is that most of the regions end up
> on the same RS. This results in that one RS being severely overloaded and
> subsequent M/R jobs failing trying to write to the regions on that RS.
> The balancer is on and the split policy is default. No changes there. It is
> a 10 node cluster.
> All other related properties are defaults too.
> Any idea, how can we force balancing of the new regions? Do we have to
> consider compaction into the equation as well? Thanks.
> Regards,
> Shahab

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