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From Shahab Yunus <shahab.yu...@gmail.com>
Subject Re: Forcibly merging regions
Date Fri, 14 Nov 2014 15:04:14 GMT
Related to this...can hbase.hregion.max.filesize setting prevent merging of
table regions? Or regions are merged anyway but they get split again during
compaction?

Regards,
Shahab

On Fri, Nov 14, 2014 at 9:41 AM, Shahab Yunus <shahab.yunus@gmail.com>
wrote:

> The documentation of online merge tool (merge_region) states that if we
> forcibly merge regions (by setting the 3rd attribute as true) then it can
> create overlapping regions. if this happens then will this render the
> region or table unusable or it is just a performance hit? I mean how bigger
> of a deal it is?
>
> Actually, we are merging regions using the programmatic API for this and
> setting this flag ('forcible') as false. But for some tables (we haven't
> figured out a pattern yet, data is still accessible), merge of regions do
> not happen at all. Afterwards we tried with this flag = true, and it still
> doesn't merge them.
>
> CDH 5.1.0
> (Hbase is 0.98.1-cdh5.1.0)
>
> Regards,
> Shahab
>

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