Github user zentol commented on a diff in the pull request:
https://github.com/apache/flink/pull/2146#discussion_r68071458
--- Diff:
flink-runtime/src/main/scala/org/apache/flink/runtime/jobmanager/JobManager.scala
---
@@ -270,6 +284,17 @@ class JobManager(
// shut down the extra thread pool for futures
executorService.shutdown()
+ // failsafe shutdown of the metrics registry
+ try {
+ val reg = metricsRegistry
--- End diff --
Dunno, code from @StephanEwen
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