Great ,
thank you.
On Wed, Oct 20, 2010 at 3:56 PM, Matthew LeMieux <[email protected]> wrote:
> Yes, what are you using to do the scan?
>
> * In the "hbase shell", you can do this: "hbase> scan 't1', {COLUMNS =>
> ['c1', 'c2'], LIMIT => 10, STARTROW => 'xyz'}" (Note the STARTROW argument)
> (taken directly from the help inside the tool)
>
> * When scanning from java client, you can pass a Scan object to [HTable
> object].getScanner(scan), the scan object has .setStartRow and .setStopRow
> methods.
> (http://hbase.apa<http://hbase.apache.org/docs/current/api/org/apache/hadoop/hbase/client/Scan.html>
* /***
* * Apply the specified server-side filter when performing the Scan.*
* * @param filter filter to run on the server*
* */*
che.org/docs/current/api/org/apache/hadoop/hbase/client/Scan.html<http://hbase.apache.org/docs/current/api/org/apache/hadoop/hbase/client/Scan.html>and
> http://hbase.apache.org/docs/current/api/org/apache/hadoop/hbase/client/HTable.html)
> Set the stop row and the start row before calling getScanner, and you
> will only iterate over the range of keys you specified.
>
> -Matthew
>
> On Oct 20, 2010, at 3:24 AM, Oleg Ruchovets wrote:
>
> > Hi ,
> >
> > I am running hbase scan on daily basis.
> > HBase table become bigger and as a result it takes to more time to scan
> it ,
> > but actually I don't need to scan all the table. Most of the time I need
> to
> > scan partial data of it.
> > The question is: is it possible to scan specific region/regions of hbase
> > table or in case I know start/end key of needed region, using it to scan
> > partial data and not all table?
> > Please post me link or example how to do it (google was not so helpfull).
> >
> > Thanks Oleg.
>
>
