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https://issues.apache.org/jira/browse/FLINK-1550?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15352704#comment-15352704
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ASF GitHub Bot commented on FLINK-1550:
---------------------------------------
Github user tillrohrmann commented on a diff in the pull request:
https://github.com/apache/flink/pull/2146#discussion_r68729084
--- Diff:
flink-runtime/src/main/scala/org/apache/flink/runtime/jobmanager/JobManager.scala
---
@@ -1082,6 +1110,13 @@ class JobManager(
log.info(s"Using restart strategy $restartStrategy for $jobId.")
+ val jobMetrics = jobManagerMetricGroup match {
+ case Some(group) =>
+ group.addJob(jobGraph.getJobID, jobGraph.getName)
--- End diff --
What happens if `group.addJob` returns a `null` value? Then the
instantiation of the `ExecutionGraph` would fail with a `NullPointerException`.
We should check that and return an `UnregisteredMetricsGroup` instead.
> 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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