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From "Ted Yu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-8299) ExploringCompactionPolicy can get stuck in rare cases.
Date Fri, 19 Apr 2013 04:59:17 GMT

    [ https://issues.apache.org/jira/browse/HBASE-8299?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13636070#comment-13636070
] 

Ted Yu commented on HBASE-8299:
-------------------------------

NoStuckSmallestPolicy needs license header.
For NoStuckSmallestPolicy#applyCompactionPolicy():
{code}
+    if (bestSelection.size() == 0 && mightBeStuck) {
+      return new ArrayList<StoreFile>(smallest);
+    }
{code}
When bestSelection.size() == 0 && !mightBeStuck, we return bestSelection. Would smallest
be empty in this case ?


                
> ExploringCompactionPolicy can get stuck in rare cases.
> ------------------------------------------------------
>
>                 Key: HBASE-8299
>                 URL: https://issues.apache.org/jira/browse/HBASE-8299
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 0.95.1
>            Reporter: Elliott Clark
>            Assignee: Elliott Clark
>         Attachments: HBASE-8299-0.patch, HBASE-8299-1.patch
>
>
> If the files are very oddly sized then it's possible that ExploringCompactionPolicy can
get stuck.

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