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From "stack (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-4543) major_compact '.META.' has no effect
Date Wed, 16 Nov 2011 22:23:52 GMT

    [ https://issues.apache.org/jira/browse/HBASE-4543?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13151574#comment-13151574
] 

stack commented on HBASE-4543:
------------------------------

Its working in trunk.  I see these messages when I tried it just now:

{code}
2011-11-16 22:20:53,676 DEBUG org.apache.hadoop.hbase.regionserver.CompactSplitThread: Small
Compaction requested: regionName=.META.,,1.1028785192, storeName=info, fileCount=1, fileSize=582.8k
(582.8k), priority=1, time=9000612904273038; Because: User-triggered major compaction; compaction_queue=(0:0),
split_queue=0
{code}

(Notice the 'User-triggered...')
                
> major_compact '.META.' has no effect
> ------------------------------------
>
>                 Key: HBASE-4543
>                 URL: https://issues.apache.org/jira/browse/HBASE-4543
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 0.89.20100621, 0.89.20100924
>            Reporter: Amitanand Aiyer
>            Assignee: Amitanand Aiyer
>            Priority: Minor
>         Attachments: 0001-fix-the-issue-of-.META.-getting-ignored.patch
>
>
> major_compact '.META.' has no effect, although major_compact 'any_other_table' works
fine from the shell.
> This issue seems to only affect 0.89. The apache-trunk seems to handle this case properly.
> The issue is that getTableRegions() in HMaster.java only works if the tableName given
is a "normal" table.
> The methodology (using a MetaScanner to look through the .META. table for the tableName)
does not work if
> the tableName is .META.
> The fix modifies getTableRegions() to check if the tableName is .META.; and if so, handle
it accordingly.

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