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  1. Apache Apex Core
  2. APEXCORE-810

Concurrent modification exception during connection cleanup in buffer server

    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Minor
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 4.0.0
    • Component/s: None
    • Labels:
      None

      Description

      ERROR com.datatorrent.bufferserver.server.Server: Buffer server Server@56cfec7c\{address=/0:0:0:0:0:0:0:0:45081} failed to tear down subscriber Subscriber@2ff22212{ln=LogicalNode@36d87f9eidentifier=tcp://xxxxxx:45081/2.output.1, upstream=2.output.1, group=rand_console/3.input, partitions=[], iterator=com.datatorrent.bufferserver.internal.DataList$DataListIterator@6caeed6a{da=com.datatorrent.bufferserver.internal.DataList$Block@506501e4{identifier=2.output.1, data=16777216, readingOffset=0, writingOffset=1822, starting_window=59dc9c3000000001, ending_window=59dc9c3000000055, refCount=2, uniqueIdentifier=0, next=null, future=null}}}}.java.util.ConcurrentModificationException
      	at java.util.HashMap$HashIterator.nextEntry(HashMap.java:922)
      	at java.util.HashMap$KeyIterator.next(HashMap.java:956)
      	at com.datatorrent.bufferserver.internal.LogicalNode.removeChannel(LogicalNode.java:118)
      	at com.datatorrent.bufferserver.server.Server$3.run(Server.java:410)
      	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
      	at java.util.concurrent.FutureTask.run(FutureTask.java:262)
      	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
      	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
      	at java.lang.Thread.run(Thread.java:745)
      

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              • Assignee:
                PramodSSImmaneni Pramod Immaneni
                Reporter:
                PramodSSImmaneni Pramod Immaneni
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                Dates

                • Created:
                  Updated:
                  Resolved: