[jira] [Resolved] (HBASE-22929) MemStoreLAB ChunkCreator may memory leak

["ramkrishna.s.vasudevan (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HBASE-22929?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

ramkrishna.s.vasudevan resolved HBASE-22929.
--------------------------------------------
    Fix Version/s: 2.1.6
                   2.2.1
                   2.3.0
                   3.0.0
       Resolution: Fixed

Thanks for all the reviews. Pushed to master, branch-2, branch-2.1 and branch-2.2.


> MemStoreLAB  ChunkCreator may memory leak
> -----------------------------------------
>
>                 Key: HBASE-22929
>                 URL: https://issues.apache.org/jira/browse/HBASE-22929
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 2.1.2
>            Reporter: Yechao Chen
>            Assignee: ramkrishna.s.vasudevan
>            Priority: Major
>             Fix For: 3.0.0, 2.3.0, 2.2.1, 2.1.6
>
>         Attachments: OOM_log.png, hbase-site.xml, hbase_heap_monitor.png, hbase_rs_heap_dump_mat_1.png, hbase_rs_heap_dump_mat_ChunkCreator_chunkIdMap.png, hbase_rs_mem_used.png
>
>
> We use hbase 2.1.2 with memstorelab enable
> RegionServer crashed case of oom 
> I dump the heap ,found the ChunkCreator may be memory leak
> The heap is 32GB, 
> hbase.regionserver.global.memstore.size=0.4,
> hbase.hregion.memstore.mslab.enabled=true
> hbase.hregion.memstore.chunkpool.initialsize=0.5,
> hbase.hregion.memstore.chunkpool.maxsize=1.0
> BucketCache with offheap



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