I think the 0.92 code has a way to promote minor into major
compactions, feel free to checkout the code (also it should be present
in your logs).

J-D

On Wed, Apr 25, 2012 at 11:48 PM, yonghu <yongyong...@gmail.com> wrote:
> Hello,
>
> My HBase version is 0.92.0. And I find that when I use minor
> compaction and major compaction to compact a table, there are no
> differences. In the minor compaction, it will remove the deleted cells
> and discard the exceeding data versions which should be the task of
> major compaction. I wonder if these two compaction can do the same
> work, why do we need both?  I mean the minor compaction has already
> done the job for major compaction, why we still need major compaction?
>
> Regards!
>
> Yong

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