[jira] [Created] (APEXCORE-810) Concurrent modification exception during connection cleanup in buffer server

[Pramod Immaneni (JIRA)]

Pramod Immaneni created APEXCORE-810:
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             Summary: Concurrent modification exception during connection 
cleanup in buffer server
                 Key: APEXCORE-810
                 URL: https://issues.apache.org/jira/browse/APEXCORE-810
             Project: Apache Apex Core
          Issue Type: Bug
            Reporter: Pramod Immaneni
            Assignee: Pramod Immaneni


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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