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  1. Flink
  2. FLINK-9122

NFASerialize deserailze failed and cause other exception

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: Critical
    • Resolution: Duplicate
    • Affects Version/s: 1.4.1, 1.4.2
    • Fix Version/s: None
    • Component/s: Library / CEP
    • Labels:
      None

      Description

      when running the job , it failed with the excetion "Caused by: java.lang.IllegalStateException: Could not find previous entry with key: passengerReserveOrder" and when refer to the log on taskmanger, i find error in taskmanager.err

      	at org.apache.flink.streaming.runtime.streamstatus.StatusWatermarkValve.inputWatermark(StatusWatermarkValve.java:108)
      	at org.apache.flink.streaming.runtime.io.StreamInputProcessor.processInput(StreamInputProcessor.java:188)
      	at org.apache.flink.streaming.runtime.tasks.OneInputStreamTask.run(OneInputStreamTask.java:69)
      	at org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:263)
      	at org.apache.flink.runtime.taskmanager.Task.run(Task.java:702)
      	at java.lang.Thread.run(Thread.java:745)
      java.lang.ClassNotFoundException: com.xxxxxxi.app.ReservationCancelMonitorApp$3
      	at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
      	at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
      	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
      	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
      	at java.lang.Class.forName0(Native Method)
      	at java.lang.Class.forName(Class.java:348)
      	at java.io.ObjectInputStream.resolveClass(ObjectInputStream.java:626)
      	at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1613)
      	at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1518)
      	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1774)
      	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)
      	at java.io.ObjectInputStream.readObject(ObjectInputStream.java:371)
      	at org.apache.flink.cep.nfa.NFA$NFASerializer.deserializeCondition(NFA.java:1171)
      	at org.apache.flink.cep.nfa.NFA$NFASerializer.deserializeStates(NFA.java:1129)
      	at org.apache.flink.cep.nfa.NFA$NFASerializer.deserialize(NFA.java:917)
      	at org.apache.flink.cep.nfa.NFA$NFASerializer.deserialize(NFA.java:820)
      	at org.apache.flink.contrib.streaming.state.RocksDBValueState.value(RocksDBValueState.java:82)
      	at org.apache.flink.cep.operator.AbstractKeyedCEPPatternOperator.getNFA(AbstractKeyedCEPPatternOperator.java:299)
      	at org.apache.flink.cep.operator.AbstractKeyedCEPPatternOperator.onEventTime(AbstractKeyedCEPPatternOperator.java:229)
      	at org.apache.flink.streaming.api.operators.HeapInternalTimerService.advanceWatermark(HeapInternalTimerService.java:275)
      	at org.apache.flink.streaming.api.operators.InternalTimeServiceManager.advanceWatermark(InternalTimeServiceManager.java:107)
      

      when i change the backend from rocksdb to memory and fs, this is disappear. i use the code in master branch, the problem is still there. i have two questions :

      1. Is the "Caused by: java.lang.IllegalStateException: Could not find previous entry with key" this caused by the error in serialization
      2. why the exception appear in taskmanager.err file not in taskmanager.log file

      @ Aljoscha Krettek Kostas Kloudas

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              • Assignee:
                Unassigned
                Reporter:
                aitozi Aitozi
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                • Created:
                  Updated:
                  Resolved: