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HBase >> mail # user >> Co-Processor in scanning the HBase's Table


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Re: Co-Processor in scanning the HBase's Table
Yes... that was emailing half asleep... :)

On Mon, Feb 18, 2013 at 7:23 AM, Anoop Sam John <[EMAIL PROTECTED]> wrote:

> We dont have any hook like postScan()..  In ur case you can try with
> postScannerClose()..  This will be called once per region. When the scan on
> that region is over the scanner opened on that region will get closed and
> at that time this hook will get executed.
>
> -Anoop-
> ________________________________________
> From: Farrokh Shahriari [[EMAIL PROTECTED]]
> Sent: Monday, February 18, 2013 10:27 AM
> To: [EMAIL PROTECTED]
> Cc: [EMAIL PROTECTED]
> Subject: Re: Co-Processor in scanning the HBase's Table
>
> Thanks you Amit,I will check that.
> @Anoop: I wanna run that just after scanning a region or after scanning the
> regions that to belong to one regionserver.
>
> On Mon, Feb 18, 2013 at 7:45 AM, Anoop Sam John <[EMAIL PROTECTED]>
> wrote:
>
> > >I wanna use a custom code after scanning a large table and prefer to run
> > the code after scanning each region
> >
> > Exactly at what point you want to run your custom code?  We have hooks at
> > points like opening a scanner at a region, closing scanner at a region,
> > calling next (pre/post) etc
> >
> > -Anoop-
> > ________________________________________
> > From: Farrokh Shahriari [[EMAIL PROTECTED]]
> > Sent: Monday, February 18, 2013 12:21 AM
> > To: [EMAIL PROTECTED]; [EMAIL PROTECTED]
> > Subject: Co-Processor in scanning the HBase's Table
> >
> > Hi there
> > I wanna use a custom code after scanning a large table and prefer to run
> > the code after scanning each region.I know that I should use
> > co-processor,but don't know which of Observer,Endpoint or both of them I
> > should use ? Is there any simple example of them ?
> >
> > Tnx
> >
>