David Koch 2012-09-04, 14:56
Pablo Musa 2012-09-04, 15:20
Ted Yu 2012-09-04, 15:12
Guillaume Gardey 2012-09-04, 15:34
-Re: Fixing badly distributed table manually.
David Koch 2012-09-04, 21:42
Thank you for your replies. We are using CDH4 HBase 0.92. Good call on the
web interface. The port is blocked so I never really got a chance to test
it. As far as manual re-balancing is concerned I will check the book.
On Tue, Sep 4, 2012 at 5:34 PM, Guillaume Gardey <
[EMAIL PROTECTED]> wrote:
> > a) What is the easiest way to get an overview of how a table is
> > across regions of a cluster? I guess I could search .META. but I haven't
> > figured out how to use filters from shell.
> > b) What constitutes a "badly distributed" table and how can I re-balance
> > manually?
> > c) Is b) needed at all? I know that HBase does its balancing
> > behind the scenes.
> I have found that
> http://bobcopeland.com/blog/2012/04/graphing-hbase-splits/ is a good
> source of information/tools to look at regions balancing in the cluster and
> investigate it.
> > As for a) I tried running this script:
> > https://github.com/Mendeley/hbase-scripts/blob/master/list_regions.rb
> > like so:
> > hbase org.jruby.Main ./list_regions.rb <_my_table>
> > but I get
> > ArgumentError: wrong number of arguments (1 for 2)
> > (root) at ./list_regions.rb:60
> > If someone more proficient notices an obvious fix, I'd be glad to hear
> > about it.
> Concerning https://github.com/Mendeley/hbase-scripts , I am afraid that
> this is a repository that is no longer maintained and was written for old
> releases of hbase (cdh2 I believe). There's no plan to upgrade it to newer
Vincent Barat 2012-09-05, 06:37
Vincent Barat 2012-09-05, 13:19
David Koch 2012-09-05, 08:40
Ivan Balashov 2012-12-24, 16:27