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From "Lars Hofhansl (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-12657) The Region is not being split and far exceeds the desired maximum size.
Date Wed, 10 Dec 2014 01:50:12 GMT

    [ https://issues.apache.org/jira/browse/HBASE-12657?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14240499#comment-14240499
] 

Lars Hofhansl commented on HBASE-12657:
---------------------------------------

bq. Frankly speaking, I can't find any single flaw in a trunk code. 

I agree. Same for 0.98. It *looks* correct to me. Yet, you are seeing these issues (in 0.98).

> The Region is not being split and far exceeds the desired maximum size.
> -----------------------------------------------------------------------
>
>                 Key: HBASE-12657
>                 URL: https://issues.apache.org/jira/browse/HBASE-12657
>             Project: HBase
>          Issue Type: Bug
>          Components: Compaction
>    Affects Versions: 0.94.25
>            Reporter: Vladimir Rodionov
>            Assignee: Vladimir Rodionov
>             Fix For: 0.94.26
>
>         Attachments: HBASE-12657-0.94.patch
>
>
> We are seeing this behavior when creating indexes in one of our environment.
> When an index is being created, most of the "requests" go into a single region.  The
amount of time to create an index seems to take longer than usual and it can take days for
the regions to compact and split after the index is created.
> Here is a du of the HBase index table:
> {code}
> -bash-4.1$ sudo -su hdfs hadoop fs -du /hbase/43681
> 705          /hbase/43681/.tableinfo.0000000001
> 0            /hbase/43681/.tmp
> 27981697293  /hbase/43681/0492e22092e21d35fca8e779b21ec797
> 539687093    /hbase/43681/832298c4e975fc47210feb6bac3d2f71
> 560660531    /hbase/43681/be9bdb3bdf9365afe5fe90db4247d82c
> 7081938297   /hbase/43681/cd440e524f96fbe0719b2fe969848560
> 6297860287   /hbase/43681/dc893a2d8daa08c689dc69e6bb2c5b50
> 7189607722   /hbase/43681/ffbceaea5e2f142dbe6cd4cbeacc00e8
> ...
> {code}



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