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HBase >> mail # user >> Is there any way to balance one table?


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RE: Is there any way to balance one table?
Hmm, in order to have the 96 region table be balanced within 20% On a 3000 region cluster when all other table is balanced.

the slop will need to be around 20%/30, say 0.006? won't it be too small?

>
> Yes, Raymond.
> You should lower sloppiness.
>
> On Tue, Feb 19, 2013 at 7:48 PM, Liu, Raymond <[EMAIL PROTECTED]>
> wrote:
>
> > I mean region number is small.
> >
> > Overall I have say 3000 region on 4 node, while this table only have
> > 96 region. It won't be 24 for each region server, instead , will be
> > something like 19/30/23/21 etc.
> >
> > This means that I need to limit the slop to 0.02 etc? so that the
> > balancer actually run on this table?
> >
> > Best Regards,
> > Raymond Liu
> >
> > From: Marcos Ortiz [mailto:[EMAIL PROTECTED]]
> > Sent: Wednesday, February 20, 2013 11:44 AM
> > To: [EMAIL PROTECTED]
> > Cc: Liu, Raymond
> > Subject: Re: Is there any way to balance one table?
> >
> > What is the size of your table?
> > On 02/19/2013 10:40 PM, Liu, Raymond wrote:
> > Hi
> >
> > I do call balancer, while it seems it doesn't work. Might due to this
> > table is small and overall region number difference is within threshold?
> >
> > -----Original Message-----
> > From: Jean-Marc Spaggiari [mailto:[EMAIL PROTECTED]]
> > Sent: Wednesday, February 20, 2013 10:59 AM
> > To: [EMAIL PROTECTED]
> > Subject: Re: Is there any way to balance one table?
> >
> > Hi Liu,
> >
> > Why did not you simply called the balancer? If other tables are
> > already balanced, it should not touch them and will only balance the
> > table which is not balancer?
> >
> > JM
> >
> > 2013/2/19, Liu, Raymond <[EMAIL PROTECTED]>:
> > I choose to move region manually. Any other approaching?
> >
> >
> > 0.94.1
> >
> > Any cmd in shell? Or I need to change balance threshold to 0 an run
> > global balancer cmd in shell?
> >
> >
> >
> > Best Regards,
> > Raymond Liu
> >
> > -----Original Message-----
> > From: Ted Yu [mailto:[EMAIL PROTECTED]]
> > Sent: Wednesday, February 20, 2013 9:09 AM
> > To: [EMAIL PROTECTED]
> > Subject: Re: Is there any way to balance one table?
> >
> > What version of HBase are you using ?
> >
> > 0.94 has per-table load balancing.
> >
> > Cheers
> >
> > On Tue, Feb 19, 2013 at 5:01 PM, Liu, Raymond <[EMAIL PROTECTED]>
> > wrote:
> >
> > Hi
> >
> > Is there any way to balance just one table? I found one of my table is
> > not balanced, while all the other table is balanced. So I want to fix
> > this table.
> >
> > Best Regards,
> > Raymond Liu
> >
> >
> >
> >
> > --
> > Marcos Ortiz Valmaseda,
> > Product Manager && Data Scientist at UCI
> > Blog: http://marcosluis2186.posterous.com
> > Twitter: @marcosluis2186
> >