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https://issues.apache.org/jira/browse/HBASE-18375?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16140176#comment-16140176
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Anastasia Braginsky commented on HBASE-18375:
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Hi [~anoop.hbase], [~ram_krish], [~stack], [~apurtell],
I need some help here. I am trying to promote the fix for Release 2.0, so the
MSLAB chunks there are returned back to pool. I have submitted a patch
(relative to branch-2 with required name HBASE-18375-branch-2.patch) which
failed QA. I then fixed the problem but unable to submit the new patch for QA.
When I am submitting it once again under same name, the Hadoop QA process
doesn't happen. When I submit under name HBASE-18375-V02-branch-2.patch QA
tries to apply the patch on master and that fails...
Any suggestions?
Thanks!
> The pool chunks from ChunkCreator are deallocated while in pool because there
> is no reference to them
> -----------------------------------------------------------------------------------------------------
>
> Key: HBASE-18375
> URL: https://issues.apache.org/jira/browse/HBASE-18375
> Project: HBase
> Issue Type: Sub-task
> Affects Versions: 2.0.0-alpha-1
> Reporter: Anastasia Braginsky
> Assignee: Anastasia Braginsky
> Priority: Critical
> Fix For: 2.0.0
>
> Attachments: HBASE-18375-branch-2.patch, HBASE-18375-V01.patch,
> HBASE-18375-V02-branch-2.patch, HBASE-18375-V02.patch, HBASE-18375-V03.patch,
> HBASE-18375-V04.patch, HBASE-18375-V05.patch, HBASE-18375-V06.patch,
> HBASE-18375-V07.patch, HBASE-18375-V08.patch, HBASE-18375-V09.patch,
> HBASE-18375-V10.patch, HBASE-18375-V11.patch
>
>
> Because MSLAB list of chunks was changed to list of chunk IDs, the chunks
> returned back to pool can be deallocated by JVM because there is no reference
> to them. The solution is to protect pool chunks from GC by the strong map of
> ChunkCreator introduced by HBASE-18010. Will prepare the patch today.
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