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From "ramkrishna.s.vasudevan (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-14636) Clear HFileScannerImpl#prevBlocks in btw Compaction flow
Date Sat, 17 Oct 2015 06:24:06 GMT

    [ https://issues.apache.org/jira/browse/HBASE-14636?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14961775#comment-14961775
] 

ramkrishna.s.vasudevan commented on HBASE-14636:
------------------------------------------------

One way to introduce the OOME is that doing a full table scan with FilterAllFilter so that
there is no option to release the blocks because the next() call ends up after the full scan
only.  The similar reason should be with compactions also. I tried with compactions but did
not reproduce. So will load more data to reproduce it. 
The fix will work but instead of one min we can call shipped() after every next() in case
of compaction or after a  pre configured batch of next().

> Clear HFileScannerImpl#prevBlocks in btw Compaction flow
> --------------------------------------------------------
>
>                 Key: HBASE-14636
>                 URL: https://issues.apache.org/jira/browse/HBASE-14636
>             Project: HBase
>          Issue Type: Sub-task
>          Components: regionserver, Scanners
>            Reporter: Anoop Sam John
>            Assignee: Anoop Sam John
>            Priority: Blocker
>             Fix For: 2.0.0
>
>




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