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


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Farrokh Shahriari 2013-02-17, 18:51
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Amit Sela 2013-02-17, 19:47
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Anoop Sam John 2013-02-18, 04:15
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Farrokh Shahriari 2013-02-18, 04:57
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RE: Co-Processor in scanning the HBase's Table
Anoop Sam John 2013-02-18, 05:23
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-
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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
>
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Amit Sela 2013-02-18, 08:30
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Farrokh Shahriari 2013-02-19, 17:33
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Farrokh Shahriari 2013-02-21, 13:44
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Anoop John 2013-02-21, 15:52
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Amit Sela 2013-02-21, 17:28
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Farrokh Shahriari 2013-02-22, 13:55
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Ted 2013-02-22, 14:16
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Anoop John 2013-02-22, 18:04