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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-11816) Initializing custom Metrics implementation failed in Mapper or Reducer
Date Mon, 25 Aug 2014 09:08:59 GMT

    [ https://issues.apache.org/jira/browse/HBASE-11816?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14108918#comment-14108918
] 

Hadoop QA commented on HBASE-11816:
-----------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12664110/hbase-11816.patch
  against trunk revision .
  ATTACHMENT ID: 12664110

    {color:green}+1 @author{color}.  The patch does not contain any @author tags.

    {color:red}-1 tests included{color}.  The patch doesn't appear to include any new or modified
tests.
                        Please justify why no new tests are needed for this patch.
                        Also please list what manual steps were performed to verify this patch.

    {color:green}+1 javac{color}.  The applied patch does not increase the total number of
javac compiler warnings.

    {color:green}+1 javac{color}.  The applied patch does not increase the total number of
javac compiler warnings.

    {color:red}-1 javadoc{color}.  The javadoc tool appears to have generated 6 warning messages.

    {color:green}+1 findbugs{color}.  The patch does not introduce any new Findbugs (version
2.0.3) warnings.

    {color:green}+1 release audit{color}.  The applied patch does not increase the total number
of release audit warnings.

    {color:green}+1 lineLengths{color}.  The patch does not introduce lines longer than 100

  {color:green}+1 site{color}.  The mvn site goal succeeds with this patch.

    {color:green}+1 core tests{color}.  The patch passed unit tests in .

Test results: https://builds.apache.org/job/PreCommit-HBASE-Build/10561//testReport/
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/10561//artifact/patchprocess/newPatchFindbugsWarningshbase-hadoop-compat.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/10561//artifact/patchprocess/newPatchFindbugsWarningshbase-protocol.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/10561//artifact/patchprocess/newPatchFindbugsWarningshbase-common.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/10561//artifact/patchprocess/newPatchFindbugsWarningshbase-thrift.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/10561//artifact/patchprocess/newPatchFindbugsWarningshbase-hadoop2-compat.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/10561//artifact/patchprocess/newPatchFindbugsWarningshbase-server.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/10561//artifact/patchprocess/newPatchFindbugsWarningshbase-examples.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/10561//artifact/patchprocess/newPatchFindbugsWarningshbase-prefix-tree.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/10561//artifact/patchprocess/newPatchFindbugsWarningshbase-client.html
Console output: https://builds.apache.org/job/PreCommit-HBASE-Build/10561//console

This message is automatically generated.

> Initializing custom Metrics implementation failed in Mapper or Reducer
> ----------------------------------------------------------------------
>
>                 Key: HBASE-11816
>                 URL: https://issues.apache.org/jira/browse/HBASE-11816
>             Project: HBase
>          Issue Type: Bug
>          Components: metrics
>            Reporter: Huafeng Wang
>            Priority: Minor
>         Attachments: hbase-11816.patch
>
>
> When I want to initialize a custom MetricsSource implementation which extends class BaseSourceImpl
in Mapper or Reducer’s setup stage, an exception will be thrown:
> Error: org.apache.hadoop.metrics2.MetricsException: Metrics source JvmMetrics already
exists!
>         at org.apache.hadoop.metrics2.lib.DefaultMetricsSystem.newSourceName(DefaultMetricsSystem.java:126)
>         at org.apache.hadoop.metrics2.lib.DefaultMetricsSystem.sourceName(DefaultMetricsSystem.java:107)
>         at org.apache.hadoop.metrics2.impl.MetricsSystemImpl.register(MetricsSystemImpl.java:217)
>         at org.apache.hadoop.metrics2.source.JvmMetrics.create(JvmMetrics.java:78)
>         at org.apache.hadoop.hbase.metrics.BaseSourceImpl$DefaultMetricsSystemInitializer.init(BaseSourceImpl.java:51)
>         at org.apache.hadoop.hbase.metrics.BaseSourceImpl.<init>(BaseSourceImpl.java:74)
>         at org.apache.hadoop.hbase.mapreduce.IdentityTableReducer.setup(IdentityTableReducer.java:89)
>         at org.apache.hadoop.mapreduce.Reducer.run(Reducer.java:168)
>         at org.apache.hadoop.mapred.ReduceTask.runNewReducer(ReduceTask.java:627)
>         at org.apache.hadoop.mapred.ReduceTask.run(ReduceTask.java:389)
>         at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:167)
>         at java.security.AccessController.doPrivileged(Native Method)
>         at javax.security.auth.Subject.doAs(Subject.java:415)
>         at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1548)
>         at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:162)
> The bug is similar to https://issues.apache.org/jira/browse/MAPREDUCE-3976



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