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Posted to issues@hbase.apache.org by "Anastasia Braginsky (JIRA)" <ji...@apache.org> on 2017/09/03 13:32:00 UTC

[jira] [Updated] (HBASE-18375) The pool chunks from ChunkCreator are deallocated while in pool because there is no reference to them

     [ https://issues.apache.org/jira/browse/HBASE-18375?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Anastasia Braginsky updated HBASE-18375:
----------------------------------------
    Attachment: HBASE-18375-branch-2.patch

> 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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