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From kisalay <kisa...@gmail.com>
Subject Re: does increasing region filesize followed by major compactions supposed to reduce number of regions?
Date Thu, 12 Jan 2012 18:57:00 GMT
Vinod,

U will have to do merge of the regions after the major compact to decrease
the number of regions that you have. You can do either an online or an
offline merge.

You can pickup the online merge jruby script from the jira
https://issues.apache.org/jira/browse/HBASE-1621

~Kisalay

On Fri, Jan 13, 2012 at 12:13 AM, T Vinod Gupta <tvinod@readypulse.com>wrote:

> so there is no way to make the regions merge since they are much below
> region max size?
>
> On Thu, Jan 12, 2012 at 10:40 AM, Doug Meil
> <doug.meil@explorysmedical.com>wrote:
>
> >
> > Major compactions don't change the number of regions.
> >
> >
> >
> >
> >
> > On 1/12/12 1:35 PM, "T Vinod Gupta" <tvinod@readypulse.com> wrote:
> >
> > >this is probably a rookie question. but my understanding is that if i
> > >increase the region max file size and then initiate major compaction
> > >manually, the number of regions should ideally go down by the factor by
> > >which i increased the region max file size. isn't that true? im not
> seeing
> > >that happening. ofcourse, my compaction is still underway - so i don't
> > >know
> > >if ill see region count decrease at the very end of it. major compaction
> > >does do region merging right?
> > >
> > >thanks
> >
> >
> >
>

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