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.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.
