What version of HBase are you using ?
Take a look at HBASE-7693 which may apply in your case.
On Wed, Feb 20, 2013 at 2:26 AM, bhushan.kandalkar <
[EMAIL PROTECTED]> wrote:
> I am running MapReduce job over HBase cluster of 3 machines but it gives
> error as Null pointer exception. Caused by ReverseDNS.
> When I tried to run MapReduce job over Hadoop it gets executed perfectly.
> How to resolve it?
> Thanks in advance.
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