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Date: Tue, 28 Jun 2011 22:43:32 +0000 (UTC)
From: "Hudson (JIRA)" <jira@apache.org>
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Subject: [jira] [Commented] (HBASE-3969) Outdated data can not be cleaned in
 time
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    [ https://issues.apache.org/jira/browse/HBASE-3969?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13056861#comment-13056861 ] 

Hudson commented on HBASE-3969:
-------------------------------

Integrated in HBase-TRUNK #1995 (See [https://builds.apache.org/job/HBase-TRUNK/1995/])
    

> Outdated data can not be cleaned in time
> ----------------------------------------
>
>                 Key: HBASE-3969
>                 URL: https://issues.apache.org/jira/browse/HBASE-3969
>             Project: HBase
>          Issue Type: Improvement
>          Components: regionserver
>    Affects Versions: 0.90.1, 0.90.2, 0.90.3
>            Reporter: zhoushuaifeng
>            Assignee: zhoushuaifeng
>             Fix For: 0.90.4
>
>         Attachments: HBASE-3969-solution1-for-branch-v2.patch, HBASE-3969-solution1-for-branch-v3.patch, HBASE-3969-solution1-for-branch-v4.patch, HBASE-3969-solution1-for-branch.patch, HBASE-3969-solution1-for-trunk-v2.patch, HBASE-3969-solution1-for-trunk-v3.patch, HBASE-3969-solution1-for-trunk-v4.patch, HBASE-3969-solution1.patch
>
>
> Compaction checker will send regions to the compact queue to do compact. But the priority of these regions is too low if these regions have only a few storefiles. When there is large through output, and the compact queue will aways have some regions with higher priority. This may causing the major compact be delayed for a long time(even a few days),  and outdated data cleaning will also be delayed.
> In our test case, we found some regions sent to the queue by major compact checker hunging in the queue for more than 2 days! Some scanners on these regions cannot get availably data for a long time and lease expired.

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