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HBase, mail # user - Can a RegionObserver coprocessor increment counter of a row key that may not belong to the region ?


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Re: Can a RegionObserver coprocessor increment counter of a row key that may not belong to the region ?
Amit Sela 2012-12-05, 17:30
And if they are not in the same table ?
On Dec 5, 2012 7:06 PM, "Ted Yu" <[EMAIL PROTECTED]> wrote:

> Are rows with domain as key stored in the same table ?
>
> Normally this is not desirable since the domain count would go to
> (potentially) another region server.
>
> Cheers
>
> On Wed, Dec 5, 2012 at 4:35 AM, Amit Sela <[EMAIL PROTECTED]> wrote:
>
> > Hi all,
> >
> > I have to count the occurrence of URLs in our system using the URL as row
> > key and using Increment.
> > I also want to count domains, so I was thinking of using RegionObserver
> > coprocessor on postIncrement() and Increment using the domain as key.
> >
> > Will that work ? Is there a problem if the url key starts with 'www.' and
> > the domain starts with 'aaaa' ?
> >
> > Thanks,
> >
> > Amit.
> >
>