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https://issues.apache.org/jira/browse/HDFS-9911?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Chris Nauroth updated HDFS-9911:
--------------------------------
Assignee: Yiqun Lin (was: Chris Nauroth)
[~linyiqun], thank you for the analysis and volunteering to take over the
patch. I am reassigning this to you.
I suggest changing this to:
{code}
scheduleNextLifeline(nextHeartbeatTime);
{code}
This would make it consistent with other points in the code where the lifeline
time is scheduled relative to the heartbeat time. It could help avoid
confusion if 2 separate calls to {{monotonicNow()}} return 2 different
timestamps (one for initialization of {{nextHeartbeatTime}} and the other for
{{scheduleNextLifeline}}).
> TestDataNodeLifeline Fails intermittently
> ------------------------------------------
>
> Key: HDFS-9911
> URL: https://issues.apache.org/jira/browse/HDFS-9911
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: datanode
> Affects Versions: 2.8.0
> Reporter: Anu Engineer
> Assignee: Yiqun Lin
> Fix For: 2.8.0
>
> Attachments: HDFS-9911.001.patch
>
>
> In HDFS-1312 branch, we have a failure for this test.
> {{org.apache.hadoop.hdfs.server.datanode.TestDataNodeLifeline.testNoLifelineSentIfHeartbeatsOnTime}}
> {noformat}
> Error Message
> Expect metrics to count no lifeline calls. expected:<0> but was:<1>
> Stacktrace
> java.lang.AssertionError: Expect metrics to count no lifeline calls.
> expected:<0> but was:<1>
> at org.junit.Assert.fail(Assert.java:88)
> at org.junit.Assert.failNotEquals(Assert.java:743)
> at org.junit.Assert.assertEquals(Assert.java:118)
> at org.junit.Assert.assertEquals(Assert.java:555)
> at
> org.apache.hadoop.hdfs.server.datanode.TestDataNodeLifeline.testNoLifelineSentIfHeartbeatsOnTime(TestDataNodeLifeline.java:256)
> {noformat}
> Details can be found here.
> https://builds.apache.org/job/PreCommit-HDFS-Build/14726/testReport/org.apache.hadoop.hdfs.server.datanode/TestDataNodeLifeline/testNoLifelineSentIfHeartbeatsOnTime/
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