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From "Jingcheng Du (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-15976) RegionServerMetricsWrapperRunnable will be failure when disable blockcache.
Date Tue, 07 Jun 2016 06:24:20 GMT

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

Jingcheng Du updated HBASE-15976:
---------------------------------
    Attachment: HBASE-15976-0.98.patch

Re-upload the patch for 0.98.
This issue is also in other branches, I will upload patches to fix them.

> 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-15976-0.98.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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