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https://issues.apache.org/jira/browse/STORM-2682?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16120867#comment-16120867
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Dan Blanchard commented on STORM-2682:
--------------------------------------
We started experiencing this immediately upon upgrading from 1.1.0 to 1.1.1 on
one cluster and from 1.0.2 to 1.1.1 on another cluster. Oddly enough, the
cluster seems to actually keep processing even with the supervisors dying
repeatedly.
> 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
> 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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