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https://issues.apache.org/jira/browse/RATIS-717?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Aravindan Vijayan updated RATIS-717:
------------------------------------
Attachment: RATIS-717-000.patch
> NPE thrown on the follower while instantiating RaftLeaderMetrics
> ----------------------------------------------------------------
>
> Key: RATIS-717
> URL: https://issues.apache.org/jira/browse/RATIS-717
> Project: Ratis
> Issue Type: Bug
> Components: metrics
> Affects Versions: 0.5.0
> Reporter: Siddharth Wagle
> Assignee: Aravindan Vijayan
> Priority: Major
> Fix For: 0.5.0
>
> Attachments: RATIS-717-000.patch
>
>
> Error thrown while running Teragen on Ozone cluster.
> {code}
> Error getting metrics from source
> ratis_core.ratis_leader.3b9b7dee-f9c7-48e0-af14-5c043e050b84@group-C1E270F4213F
> java.lang.NullPointerException
> at
> org.apache.ratis.server.impl.RaftLeaderMetrics.lambda$null$2(RaftLeaderMetrics.java:86)
> at
> com.github.joshelser.dropwizard.metrics.hadoop.HadoopMetrics2Reporter.snapshotAllMetrics(HadoopMetrics2Reporter.java:239)
> at
> com.github.joshelser.dropwizard.metrics.hadoop.HadoopMetrics2Reporter.getMetrics(HadoopMetrics2Reporter.java:219)
> at
> org.apache.hadoop.metrics2.impl.MetricsSourceAdapter.getMetrics(MetricsSourceAdapter.java:200)
> at
> org.apache.hadoop.metrics2.impl.MetricsSystemImpl.snapshotMetrics(MetricsSystemImpl.java:419)
> at
> org.apache.hadoop.metrics2.impl.MetricsSystemImpl.sampleMetrics(MetricsSystemImpl.java:406)
> at
> org.apache.hadoop.metrics2.impl.MetricsSystemImpl.onTimerEvent(MetricsSystemImpl.java:381)
> at
> org.apache.hadoop.metrics2.impl.MetricsSystemImpl$4.run(MetricsSystemImpl.java:368)
> at java.util.TimerThread.mainLoop(Timer.java:555)
> at java.util.TimerThread.run(Timer.java:505)
> {code}
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