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https://issues.apache.org/jira/browse/HADOOP-7507?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13099596#comment-13099596
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Hadoop QA commented on HADOOP-7507:
-----------------------------------
+1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12493507/HADOOP-7507v7.patch
against trunk revision .
+1 @author. The patch does not contain any @author tags.
+1 tests included. The patch appears to include 3 new or modified tests.
+1 javadoc. The javadoc tool did not generate any warning messages.
+1 javac. The applied patch does not increase the total number of javac
compiler warnings.
+1 findbugs. The patch does not introduce any new Findbugs (version 1.3.9)
warnings.
+1 release audit. The applied patch does not increase the total number of
release audit warnings.
+1 core tests. The patch passed unit tests in hadoop-common-project.
+1 contrib tests. The patch passed contrib unit tests.
Test results:
https://builds.apache.org/job/PreCommit-HADOOP-Build/148//testReport/
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HADOOP-Build/148//artifact/trunk/patchprocess/newPatchFindbugsWarningshadoop-auth.html
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HADOOP-Build/148//artifact/trunk/patchprocess/newPatchFindbugsWarningshadoop-common.html
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HADOOP-Build/148//artifact/trunk/patchprocess/newPatchFindbugsWarningshadoop-annotations.html
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HADOOP-Build/148//artifact/trunk/patchprocess/newPatchFindbugsWarningshadoop-auth-examples.html
Console output:
https://builds.apache.org/job/PreCommit-HADOOP-Build/148//console
This message is automatically generated.
> jvm metrics all use the same namespace
> --------------------------------------
>
> Key: HADOOP-7507
> URL: https://issues.apache.org/jira/browse/HADOOP-7507
> Project: Hadoop Common
> Issue Type: Bug
> Components: metrics
> Affects Versions: 0.20.2
> Reporter: Jeff Bean
> Assignee: Alejandro Abdelnur
> Fix For: 0.23.0, 0.24.0
>
> Attachments: HADOOP-7507-v2.patch, HADOOP-7507v1.patch,
> HADOOP-7507v3.patch, HADOOP-7507v4.patch, HADOOP-7507v5.patch,
> HADOOP-7507v6.patch, HADOOP-7507v7.patch, JvmMetrics.java,
> hadoop-metrics.properties, screenshot-1.jpg
>
>
> Ganglia jvm metrics don't make sense because it's not clear which java
> process the metrics refer to. In fact, all hadoop java processes running on a
> node report their jvm metrics to the same namespace.
> The metrics are exposed by the "jvm" context in JvmMetrics.java. This leads
> to confusing and nonsensical graphs in ganglia and maybe other monitoring
> tools.
> One way to fix this is to make sure the process name is reported in the jvm
> context, making it clear which process is associated with the context, and
> separating out the jvm metrics per process.
> This is marked as an "incompatible change" because the fix provided removes
> the JVM metrics and replaces it with process-specific metrics.
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