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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 Fri, 16 May 2014 12:05:54 GMT
Did anyone received the email I sent below? Based on the other emails,
seems not. So just re-sending.


2014-05-15 8:24 GMT-04:00 Jean-Marc Spaggiari <jean-marc@spaggiari.org>:

> 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.
> JM
> 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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