[jira] [Resolved] (HBASE-3969) Outdated data can not be cleaned in time

["stack (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HBASE-3969?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

stack resolved HBASE-3969.
--------------------------

      Resolution: Fixed
        Assignee: zhoushuaifeng
    Hadoop Flags: [Reviewed]

Thank you for providing the v4s of the patch Zhou.  Committed branch and trunk.

> Outdated data can not be cleaned in time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 This may causing the major compact be delayed for a long time(even a few days),  and outdated data cleaning will also be delayed.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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