[jira] [Created] (STORM-3245) Log viewer cleanup failes if multiple empty worker-artifact dirs

["Robert Joseph Evans (JIRA)" <ji...@apache.org>]

Robert Joseph Evans created STORM-3245:
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             Summary: Log viewer cleanup failes if multiple empty worker-artifact dirs
                 Key: STORM-3245
                 URL: https://issues.apache.org/jira/browse/STORM-3245
             Project: Apache Storm
          Issue Type: Bug
          Components: storm-server
    Affects Versions: 2.0.0
            Reporter: Robert Joseph Evans
            Assignee: Robert Joseph Evans


If a drive fills up for various reasons it is possible that we can create the directory for a worker in worker-artifacts, but not able to create the worker.yaml.  If we get more than one of these on a node we get an exception like.

 
{code:java}
o.a.s.d.l.u.LogCleaner logviewer-cleanup [ERROR] Exception while cleaning up old log.
java.lang.IllegalStateException: Duplicate key ...
        at java.util.stream.Collectors.lambda$throwingMerger$0(Collectors.java:133) ~[?:1.8.0_102]
        at java.util.HashMap.merge(HashMap.java:1253) ~[?:1.8.0_102]
        at java.util.stream.Collectors.lambda$toMap$58(Collectors.java:1320) ~[?:1.8.0_102]
        at java.util.stream.ReduceOps$3ReducingSink.accept(ReduceOps.java:169) ~[?:1.8.0_102]
        at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193) ~[?:1.8.0_102]
        at java.util.TreeMap$KeySpliterator.forEachRemaining(TreeMap.java:2746) ~[?:1.8.0_102]
        at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481) ~[?:1.8.0_102]
        at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471) ~[?:1.8.0_102]
        at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:708) ~[?:1.8.0_102]
        at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) ~[?:1.8.0_102]
        at java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:499) ~[?:1.8.0_102]
        at org.apache.storm.daemon.logviewer.utils.WorkerLogs.identifyWorkerLogDirs(WorkerLogs.java:214) ~[storm-webapp-...{code}



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