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From Jean-Marc Spaggiari <jean-m...@spaggiari.org>
Subject Re: preGetOp being called on the Coprocessor when issued with delete request
Date Thu, 15 May 2014 12:24:44 GMT
Hi Vinay,

If you use deleteColumn (with no S), HBase need to first to a get to find
the last timeStamp, then do the delete. If you goal is to remove all the
versions of the specific column, you should use deleteColumns, which will
not all get.


2014-05-13 10:16 GMT-04:00 Vinay Kashyap <vinay_kashyap@ymail.com>:

> Dear all,
> I am using HBase with CDH-5.0.0.
> I have an application where I have registered a coprocessor to my table to
> get few statistics on the read/write/delete requests.
> I have implemented preGetOp, prePut and preDelete accordingly and it is
> working as expected in case of read/write requests.
> But when I issue a delete request on the table, coprocessor's preGetOp is
> been called which is varying the read requests statistics.
> I wanted to understand why is the preGetOp being called when delete
> request is issued.?
> Thanks and regards
> Vinay Kashyap

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