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https://issues.apache.org/jira/browse/STORM-2682?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16133865#comment-16133865
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Jungtaek Lim commented on STORM-2682:
-------------------------------------
[~smaldeniya]
Thanks for reporting!
> Supervisor crashes with NullPointerException
> --------------------------------------------
>
> Key: STORM-2682
> URL: https://issues.apache.org/jira/browse/STORM-2682
> Project: Apache Storm
> Issue Type: Bug
> Affects Versions: 1.0.4, 1.1.1
> Environment: Dockerized, based on Debian Jessie, running on Ubuntu
> Trusty, OpenJDK8
> Reporter: Martin Burian
> Assignee: Robert Joseph Evans
> Attachments: storm-core-1.1.2-SNAPSHOT.jar
>
> Time Spent: 40m
> Remaining Estimate: 0h
>
> When supervisor is started, it dies after about 30s like so:
> {code:java}
> ...
> 2017-08-07 17:12:04.606 o.a.s.d.s.Slot main [WARN] SLOT 192.168.10.21:6701
> Starting in state EMPTY - assignment null
> 2017-08-07 17:12:04.607 o.a.s.d.s.Slot main [WARN] SLOT 192.168.10.21:6702
> Starting in state EMPTY - assignment null
> 2017-08-07 17:12:04.607 o.a.s.l.AsyncLocalizer main [INFO] Cleaning up unused
> topologies in /home/storm/data/supervisor/stormdist
> 2017-08-07 17:12:04.617 o.a.s.d.s.Supervisor main [INFO] Starting supervisor
> with id 65a0f977-474c-4938-a4f5-bc99939e96ff at host 192.168.10.
> 21.
> 2017-08-07 17:12:04.619 o.a.s.d.m.MetricsUtils main [INFO] Using statistics
> reporter plugin:org.apache.storm.daemon.metrics.reporters.JmxPrep
> arableReporter
> 2017-08-07 17:12:04.620 o.a.s.d.m.r.JmxPreparableReporter main [INFO]
> Preparing...
> 2017-08-07 17:12:04.624 o.a.s.m.StormMetricsRegistry main [INFO] Started
> statistics report plugin...
> 2017-08-07 17:12:34.620 o.a.s.e.EventManagerImp Thread-4 [ERROR] {} Error
> when processing event
> java.lang.NullPointerException: null
> at
> java.util.concurrent.ConcurrentHashMap.get(ConcurrentHashMap.java:936)
> ~[?:1.8.0_121]
> at
> org.apache.storm.localizer.Localizer.updateBlobs(Localizer.java:332)
> ~[storm-core-1.0.4.jar:1.0.4]
> at
> org.apache.storm.daemon.supervisor.timer.UpdateBlobs.updateBlobsForTopology(UpdateBlobs.java:99)
> ~[storm-core-1.0.4.jar:1.0.4]
> at
> org.apache.storm.daemon.supervisor.timer.UpdateBlobs.run(UpdateBlobs.java:72)
> ~[storm-core-1.0.4.jar:1.0.4]
> at
> org.apache.storm.event.EventManagerImp$1.run(EventManagerImp.java:54)
> ~[storm-core-1.0.4.jar:1.0.4]
> 2017-08-07 17:12:34.620 o.a.s.u.Utils Thread-4 [ERROR] Halting process: Error
> when processing an event
> java.lang.RuntimeException: Halting process: Error when processing an event
> at org.apache.storm.utils.Utils.exitProcess(Utils.java:1750)
> ~[storm-core-1.0.4.jar:1.0.4]
> at
> org.apache.storm.event.EventManagerImp$1.run(EventManagerImp.java:63)
> ~[storm-core-1.0.4.jar:1.0.4]
> 2017-08-07 17:12:34.631 o.a.s.d.s.Supervisor Thread-5 [INFO] Shutting down
> supervisor 65a0f977-474c-4938-a4f5-bc99939e96ff
> {code}
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