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Subject: Re: MapReduce on Sanpshots
From: Rahul Malviya <malviyarahul2001@gmail.com>
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 <CALte62z8aTFWtEq_WKkEfnj-nOy-XCyJPFAT=FusxFaCxMcs+A@mail.gmail.com>
Date: Fri, 8 May 2015 09:25:30 -0700
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 <CALte62z8aTFWtEq_WKkEfnj-nOy-XCyJPFAT=FusxFaCxMcs+A@mail.gmail.com>
To: user@hbase.apache.org

Thanks Ted.

Seems to answer my question.

Rahul

> On May 8, 2015, at 9:04 AM, Ted Yu <yuzhihong@gmail.com> wrote:
>=20
> Please see Release Note of HBASE-8369
>=20
> Cheers
>=20
> On Fri, May 8, 2015 at 8:16 AM, Rahul Malviya =
<malviyarahul2001@gmail.com>
> wrote:
>=20
>> Hi All,
>>=20
>> I have been MapReduce on HBase for a while now and this has been =
really
>> successful for me. But I have some MRs jobs in my pipeline which scan =
every
>> row on hbase. So I was wondering I move this MR job to run on =
snapshot that
>> will reduce the load on RSs and HBase direct operations mostly get =
wont be
>> affected by my long running full scan MR job.
>>=20
>> Let me know if my understanding is correct and what are possible =
drawbacks
>> of doing this. I am mostly worried that my job will start talking =
longer
>> time as compared to MR directly in HBase table. Please provide some =
details
>> on this.
>>=20
>> Thanks,
>> Rahul