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


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Liu, Raymond 2013-02-20, 01:01
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Ted Yu 2013-02-20, 01:08
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Liu, Raymond 2013-02-20, 01:16
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Ted Yu 2013-02-20, 03:23
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Liu, Raymond 2013-02-20, 02:35
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Jean-Marc Spaggiari 2013-02-20, 02:58
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Liu, Raymond 2013-02-20, 03:40
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Ted Yu 2013-02-20, 03:45
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Liu, Raymond 2013-02-20, 03:49
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Marcos Ortiz 2013-02-20, 03:43
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Liu, Raymond 2013-02-20, 03:48
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Ted Yu 2013-02-20, 03:51
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Liu, Raymond 2013-02-20, 03:55
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Ted Yu 2013-02-20, 04:31
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RE: Is there any way to balance one table?
Liu, Raymond 2013-02-20, 05:52
You mean slop is also base on per table?
Weird, then it should work for my case.... let me check again.

Best Regards,
Raymond Liu

>
> bq. On a 3000 region cluster
>
> Balancing is per-table. Meaning total number of regions doesn't come into play.
>
> On Tue, Feb 19, 2013 at 7:55 PM, Liu, Raymond <[EMAIL PROTECTED]>
> wrote:
>
> > 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
> > > >
> >
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Jean-Marc Spaggiari 2013-02-20, 12:19
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Ted Yu 2013-02-20, 15:07