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From Ted Yu <yuzhih...@gmail.com>
Subject Re: hbase region server region split policy
Date Thu, 13 Feb 2014 17:52:45 GMT
The dynamic config went into 0.94.7 through HBASE-8176

Please consider upgrading your deployment.

Cheers


On Thu, Feb 13, 2014 at 9:43 AM, Mohamed Ghareb <m.ghareeb@tedata.net>wrote:

> It return error
> ameError: uninitialized constant CONFIG
> hbase(main):079:0* alter 'testsplit1', METHOD => 'table_att', CONFIG =>
> {'KeyPrefixRegionSplitPolicy.prefix_length' => '5'}
>
>
> then I run it with
> alter 'testsplit1', METHOD => 'table_att', CONFIGURATION =>
> {'KeyPrefixRegionSplitPolicy.prefix_length' => '5'}
>
> with the error
> NameError: uninitialized constant CONFIGURATION
>
>
> I ran hbase version 0.94.6-cdh4.5.0,
>
>
> The prefix length is determined by
> "KeyPrefixRegionSplitPolicy.prefix_length"
> attribute of table descriptor
>
> You can change the table-scope by setting attribute CONFIG like this:
>   hbase> alter 'test', METHOD=>'table_att', CONFIG =>
> {'KeyPrefixRegionSplitPolicy.prefix_length' => '5'}
>
> See more examples in shell/commands/alter.rb
>
> Cheers
>
>
> On Thu, Feb 13, 2014 at 9:07 AM, Mohamed Ghareb <m.ghareeb@tedata.net
> >wrote:
>
> > Thanks Ted for your replay;
> > I know I can specify the policy with    SPLITALGO => '
> > KeyPrefixRegionSplitPolicy '
> > But I need the set the prefix length for that policy How  can i do it
> > ?
> >
> > -----Original Message-----
> > From: Ted Yu [mailto:yuzhihong@gmail.com]
> > Sent: Thursday, February 13, 2014 6:57 PM
> > To: user@hbase.apache.org
> > Subject: Re: hbase region server region split policy
> >
> > Here is a sample command from ruby/shell/commands/create.rb:
> >
> >   hbase> # Optionally pre-split the table into NUMREGIONS, using
> >   hbase> # SPLITALGO ("HexStringSplit", "UniformSplit" or classname)
> >   hbase> create 't1', 'f1', {NUMREGIONS => 15, SPLITALGO =>
> > 'HexStringSplit'}
> >
> > See also:
> > http://hbase.apache.org/book.html#arch.region.splits
> >
> >
> > On Thu, Feb 13, 2014 at 8:43 AM, Mohamed Ghareb <m.ghareeb@tedata.net
> > >wrote:
> >
> > > How can I create table with pre-splitting for 10 region with policy
> > > (KeyPrefixRegionSplitPolicy)
> > > From the "hbase shell" and how I can specify the prefix length for
> > > the key prefix with the hbase shell.
> > >
> >
>

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