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HBase >> mail # user >> RegionSplitter command


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anil gupta 2013-01-17, 17:24
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Jean-Marc Spaggiari 2013-01-17, 23:02
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Re: RegionSplitter command
Hi Jean,

Yes, i am stuck with 0.92.1. Thanks for your response. I think, i will need
to dig more deep into this.

~Anil

On Thu, Jan 17, 2013 at 3:02 PM, Jean-Marc Spaggiari <
[EMAIL PROTECTED]> wrote:

> Hi Anil,
>
> bin/hbase org.apache.hadoop.hbase.util.RegionSplitter -c 60 -f f1 test
> HexStringSplit
>
> is working for me.
>
> So your 2nd line should work. I'm not sure if it's because of the
> version since I'm using 0.94.4.
>
> Can you upgrade your version and retry? Or you need to stay with 0.92.1?
>
> JM
>
> 2013/1/17, anil gupta <[EMAIL PROTECTED]>:
> > Hi All,
> >
> > I am using HBase0.92.1. I am trying to run ycsb tests on my hbase
> cluster.
> > But while running the load test with 40 threads i am getting hotspots on
> > the RS that is hosting the Region of 'usertable'. Currently, the empty
> > table only has one region. So, i want to pre-split my 'usertable' using
> the
> > RegionSplitter utility.
> > HexStringSplit is the splitting algorithm, 'c' is the name of the column
> > family. I tried the following commands but they didnt work:
> >
> >    1. hbase org.apache.hadoop.hbase.util.RegionSplitter usertable
> >    HexStringSplit -c 60 -f c
> >    2. hbase org.apache.hadoop.hbase.util.RegionSplitter -c 60 -f c
> >    usertable HexStringSplit
> >
> > Following is the output of above commands:
> >
> > usage: RegionSplitter <TABLE>
> >  -c <region count>        Create a new table with a pre-split number of
> >                           regions
> >  -D <property=value>      Override HBase Configuration Settings
> >  -f <family:family:...>   Column Families to create with new table.
> >                           Required with -c
> >  -h                       Print this usage help
> >  -o <count>               Max outstanding splits that have unfinished
> >                           major compactions
> >  -r                       Perform a rolling split of an existing region
> >     --risky               Skip verification steps to complete
> >                           quickly.STRONGLY DISCOURAGED for production
> >                           systems.
> >
> >
> > Please let me know the proper command for RegionSplitter utility.
> >
> > --
> > Thanks & Regards,
> > Anil Gupta
> >
>

--
Thanks & Regards,
Anil Gupta