[STORM-2682] Supervisor crashes with NullPointerException

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 1.0.4, 1.1.1
• Fix Version/s: 2.0.0, 1.2.0, 1.1.2, 1.0.5
• Environment: Dockerized, based on Debian Jessie, running on Ubuntu Trusty, OpenJDK8
• Assignee: Robert Joseph Evans
• Reporter: Martin Burian
• Created: 07/Aug/17 15:20
• Updated: 25/Aug/17 07:17
• Resolved: 19/Aug/17 02:25

Description

When supervisor is started, it dies after about 30s like so:

...
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

Issue Links

• links to: GitHub Pull Request #2266
• links to: GitHub Pull Request #2267