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Posted to issues@hbase.apache.org by "Jingcheng Du (JIRA)" <ji...@apache.org> on 2016/06/07 06:20:21 UTC

[jira] [Updated] (HBASE-15976) RegionServerMetricsWrapperRunnable will be failure when disable blockcache.

     [ https://issues.apache.org/jira/browse/HBASE-15976?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jingcheng Du updated HBASE-15976:
---------------------------------
    Attachment: HBASE-15976.patch

Upload a patch to fix this.

> RegionServerMetricsWrapperRunnable will be failure  when disable blockcache.
> ----------------------------------------------------------------------------
>
>                 Key: HBASE-15976
>                 URL: https://issues.apache.org/jira/browse/HBASE-15976
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 0.98.15
>            Reporter: Liu Junhong
>            Assignee: Jingcheng Du
>         Attachments: HBASE-15976.patch
>
>
> When i disable blockcache, the code "cacheStats = blockCache.getStats();" will occur NPE in org.apache.hadoop.hbase.regionserver.MetricsRegionServerWrapperImpl.RegionServerMetricsWrapperRunnable.
> It lead to many regionserver's metrics' value always equal 0.



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