[jira] [Commented] (FLINK-1550) Show JVM Metrics for JobManager

[ASF GitHub Bot (JIRA)]

    [ 
https://issues.apache.org/jira/browse/FLINK-1550?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15352767#comment-15352767
 ] 

ASF GitHub Bot commented on FLINK-1550:
---------------------------------------

Github user tillrohrmann commented on the issue:

    https://github.com/apache/flink/pull/2146
  
    I just tried the code out and run into the problem of a job metric group 
being null:
    
    ```
    java.lang.NullPointerException
        at 
org.apache.flink.util.Preconditions.checkNotNull(Preconditions.java:58)
        at 
org.apache.flink.runtime.executiongraph.ExecutionGraph.<init>(ExecutionGraph.java:316)
        at 
org.apache.flink.runtime.jobmanager.JobManager.org$apache$flink$runtime$jobmanager$JobManager$$submitJob(JobManager.scala:1126)
        at 
org.apache.flink.runtime.jobmanager.JobManager$$anonfun$handleMessage$1.applyOrElse(JobManager.scala:501)
        at 
scala.runtime.AbstractPartialFunction$mcVL$sp.apply$mcVL$sp(AbstractPartialFunction.scala:33)
        at 
scala.runtime.AbstractPartialFunction$mcVL$sp.apply(AbstractPartialFunction.scala:33)
        at 
scala.runtime.AbstractPartialFunction$mcVL$sp.apply(AbstractPartialFunction.scala:25)
        at 
org.apache.flink.runtime.LeaderSessionMessageFilter$$anonfun$receive$1.applyOrElse(LeaderSessionMessageFilter.scala:36)
        at 
scala.runtime.AbstractPartialFunction$mcVL$sp.apply$mcVL$sp(AbstractPartialFunction.scala:33)
        at 
scala.runtime.AbstractPartialFunction$mcVL$sp.apply(AbstractPartialFunction.scala:33)
        at 
scala.runtime.AbstractPartialFunction$mcVL$sp.apply(AbstractPartialFunction.scala:25)
        at 
org.apache.flink.runtime.LogMessages$$anon$1.apply(LogMessages.scala:33)
        at 
org.apache.flink.runtime.LogMessages$$anon$1.apply(LogMessages.scala:28)
        at scala.PartialFunction$class.applyOrElse(PartialFunction.scala:118)
        at 
org.apache.flink.runtime.LogMessages$$anon$1.applyOrElse(LogMessages.scala:28)
        at akka.actor.Actor$class.aroundReceive(Actor.scala:465)
        at 
org.apache.flink.runtime.jobmanager.JobManager.aroundReceive(JobManager.scala:118)
        at akka.actor.ActorCell.receiveMessage(ActorCell.scala:516)
        at akka.actor.ActorCell.invoke(ActorCell.scala:487)
        at akka.dispatch.Mailbox.processMailbox(Mailbox.scala:254)
        at akka.dispatch.Mailbox.run(Mailbox.scala:221)
        at akka.dispatch.Mailbox.exec(Mailbox.scala:231)
        at scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260)
        at 
scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339)
        at 
scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979)
        at 
scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107)
    ```


> Show JVM Metrics for JobManager
> -------------------------------
>
>                 Key: FLINK-1550
>                 URL: https://issues.apache.org/jira/browse/FLINK-1550
>             Project: Flink
>          Issue Type: Sub-task
>          Components: JobManager, Metrics
>            Reporter: Robert Metzger
>            Assignee: Chesnay Schepler
>             Fix For: pre-apache
>
>




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