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From "Rohith Sharma K S (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-8856) TestTimelineReaderWebServicesHBaseStorage tests failing with NoClassDefFoundError
Date Tue, 09 Oct 2018 06:10:00 GMT

    [ https://issues.apache.org/jira/browse/YARN-8856?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16642849#comment-16642849
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Rohith Sharma K S commented on YARN-8856:
-----------------------------------------

I just ran test in trunk and failed. I found that below is the reason for initialization failure
for sysout log. 
{code}
Caused by: org.apache.hadoop.metrics2.MetricsException: Unsupported metric field getEntitiesFailureLatency
of type org.apache.hadoop.metrics2.lib.MutableQuantiles
    at org.apache.hadoop.metrics2.lib.MutableMetricsFactory.newForField(MutableMetricsFactory.java:87)
    at org.apache.hadoop.metrics2.lib.MetricsSourceBuilder.add(MetricsSourceBuilder.java:147)
    at org.apache.hadoop.metrics2.lib.MetricsSourceBuilder.<init>(MetricsSourceBuilder.java:69)
    at org.apache.hadoop.metrics2.lib.MetricsAnnotations.newSourceBuilder(MetricsAnnotations.java:43)
    at org.apache.hadoop.metrics2.impl.MetricsSystemImpl.register(MetricsSystemImpl.java:223)
    at org.apache.hadoop.yarn.server.timelineservice.metrics.TimelineReaderMetrics.getInstance(TimelineReaderMetrics.java:61)
    at org.apache.hadoop.yarn.server.timelineservice.reader.TimelineReaderWebServices.<clinit>(TimelineReaderWebServices.java:82
{code}

This we will not notice in actual deployment because HADOOP-15657 and YARN-8270 go together.
But for running tests, it looks tests is considering HBase version of hadoop-common dependency
which doesn't exit HADOOP-15657 fix leading to test failure. 

YARN-8270 jenkins hasn't run hbase-tests package which is the reason we couldn't caught earlier.
cc:/ [~vrushalic] [~Sushil-K-S]

[~Sushil-K-S] We should skip loading metrics while running hbase tests which actually starts
MiniHbase cluster with Hbase-2.0 jars. 



> TestTimelineReaderWebServicesHBaseStorage tests failing with NoClassDefFoundError
> ---------------------------------------------------------------------------------
>
>                 Key: YARN-8856
>                 URL: https://issues.apache.org/jira/browse/YARN-8856
>             Project: Hadoop YARN
>          Issue Type: Bug
>            Reporter: Jason Lowe
>            Priority: Major
>
> TestTimelineReaderWebServicesHBaseStorage has been failing in nightly builds with NoClassDefFoundError
in the tests.  Sample error and stacktrace to follow.



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