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From Jean-Marc Spaggiari <jean-m...@spaggiari.org>
Subject Re: Reading the data from specified region
Date Sat, 14 Dec 2013 02:09:36 GMT
Hi Syed,

What is you goal?

Do you want to read all the entries for this region and process them? Or
you want to get a specific entry on this region? Or you want to process all
the regions, but make sure you are doing that locally to the region server?

For 1: You a scan using the region boundaries.
For 2: Use a get
For 3: You a MR job.

JM


2013/12/13 Syed Abdul Kather <in.abdul@gmail.com>

> Hi Ted ,
>       Thanks for your reply . But I don't want to use coprocessor . Is
> there a way where I can read data via our custom jar
>
> Like :
>
>    Region obj  = new Region  ( Region name )
>    Obj.read() ;
>
> Thanks
> Syed
>
>
>  On Dec 13, 2013 8:36 PM, "Ted Yu" <yuzhihong@gmail.com> wrote:
>
> > Take a look at
> > https://blogs.apache.org/hbase/entry/coprocessor_introduction
> >
> > Cheers
> >
> > On Dec 13, 2013, at 5:38 AM, Syed Abdul Kather <in.abdul@gmail.com>
> wrote:
> >
> > > Hi ,
> > >   Is there a way where i can read record in region directly?
> > >
> > > Example :
> > >   If my table is splited into 8 region and i have 4 RS(Each has 2
> > > region) .  I have control on my Rowkey split.
> > > Now i need to read data directly from the Region and process  [Data
> > > Locality]. I will send my jar to the specified region and it will get
> > > executed  kinda
> > >
> > >
> > > If there is link to read it Please share it can be useful.
> > >
> > >            Thanks and Regards,
> > >        S SYED ABDUL KATHER
> >
>

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