Yep there was few problems, but now its working with trunk and supposed to work with 0.90. Biggest problem was that OnlineMerge doesn't assign new region and that caused test to failed with "NoServerForRegionException: No server address listed in .META. for region ..."

On 10.02.2011 20:56, Jean-Daniel Cryans wrote:
For the record, I posted a patch in this jira that does online merge
on 0.89 but it's awfully buggy
https://issues.apache.org/jira/browse/HBASE-1621

It's probably all different in 0.90 now tho.

J-D

On Thu, Feb 10, 2011 at 11:51 AM, Ryan Rawson<ryano...@gmail.com>  wrote:
Since the Merge tool works on an offline cluster, it goes straight to
the META HFiles, thus cannot be run in parallel.

It shouldn't be too hard to hack up Merge to work on an online
cluster, offline table.



On Thu, Feb 10, 2011 at 10:09 AM, Jean-Daniel Cryans
<jdcry...@apache.org>  wrote:
I think not, it opens and edits .META. so it would be like having
multiple region servers serving it (which is always bad).

J-D

On Thu, Feb 10, 2011 at 5:22 AM, Sebastian Bauer<ad...@ugame.net.pl>  wrote:
Hi, is anybody knows that "./bin/hbase org.apache.hadoop.hbase.util.Merge "
can run in parallel?

Thanks,
Sebastian Bauer

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