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https://issues.apache.org/jira/browse/HBASE-15976?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15355504#comment-15355504
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Hudson commented on HBASE-15976:
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FAILURE: Integrated in HBase-0.98-on-Hadoop-1.1 #1233 (See
[https://builds.apache.org/job/HBase-0.98-on-Hadoop-1.1/1233/])
HBASE-15976 RegionServerMetricsWrapperRunnable will be failure when
(jingcheng.du: rev e13054298351d53529649bfdeb5f3b4724bad4d8)
*
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/MetricsRegionServerWrapperImpl.java
Revert "HBASE-15976 RegionServerMetricsWrapperRunnable will be failure
(jingcheng.du: rev be1d92d22759c750975c293e0cbcb92260f39e6d)
*
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/MetricsRegionServerWrapperImpl.java
HBASE-15976 RegionServerMetricsWrapperRunnable will be failure when
(jingcheng.du: rev ceda27494b6e01b7668db44dc1280eeda5fb443d)
*
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/MetricsRegionServerWrapperImpl.java
> 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, 1.2.1, 1.0.3, 1.1.5
> Reporter: Liu Junhong
> Assignee: Jingcheng Du
> Fix For: 2.0.0, 1.0.4, 1.4.0, 1.2.2, 1.1.6, 1.3.1, 0.98.21
>
> Attachments: HBASE-15976-0.98-v2.patch, HBASE-15976-0.98.patch,
> HBASE-15976-branch-1&branch-1.3.patch, HBASE-15976-branch-1-addendum.patch,
> HBASE-15976-branch-1.0.patch, HBASE-15976-branch-1.1.patch,
> HBASE-15976-branch-1.2-v2.patch, HBASE-15976-branch-1.2.patch,
> HBASE-15976-branch-1.3-v2.patch, HBASE-15976-master-addendum.patch,
> HBASE-15976-master.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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