Hi All??

 ????????flink ???? kafka ?????? eos ?????? 
??????????????????????????????????????????????


0-05-21 16:52:15,057 INFO  
org.apache.flink.runtime.executiongraph.ExecutionGraph        - Source: Custom 
Source (1/1) (f65b2869d898a050238c53f9fbc9573b) switched from DEPLOYING to 
RUNNING. 2020-05-21 16:52:15,062 INFO  
org.apache.flink.runtime.executiongraph.ExecutionGraph        - 
Co-Process-Broadcast -> Map -> Sink: Unnamed (1/1) 
(d0739aa81367223f83a63a86307fffb3) switched from DEPLOYING to RUNNING. 
2020-05-21 16:52:15,276 INFO  
org.apache.flink.runtime.executiongraph.ExecutionGraph        - 
Co-Process-Broadcast -> Map -> Sink: Unnamed (1/1) 
(d0739aa81367223f83a63a86307fffb3) switched from RUNNING to FAILED. 
org.apache.kafka.common.KafkaException: org.apache.kafka.common.KafkaException: 
Could not find a coordinator with type TRANSACTION with key 
Co-Process-Broadcast -> Map -> Sink: 
Unnamed-c4ffe334eee7821772b24597621064ce-32 due tounexpected error: The server 
experienced an unexpected error when processing the request.       at 
sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)        at 
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
         at 
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
         at java.lang.reflect.Constructor.newInstance(Constructor.java:423)     
 at 
java.util.concurrent.ForkJoinTask.getThrowableException(ForkJoinTask.java:593)  
     at 
java.util.concurrent.ForkJoinTask.reportException(ForkJoinTask.java:677)     at 
java.util.concurrent.ForkJoinTask.invoke(ForkJoinTask.java:735)      at 
java.util.stream.ForEachOps$ForEachOp.evaluateParallel(ForEachOps.java:160)  at 
java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateParallel(ForEachOps.java:174)
    at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:233)    
    at java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:418)   
    at 
java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:583)  at 
org.apache.flink.streaming.connectors.kafka.FlinkKafkaProducer.abortTransactions(FlinkKafkaProducer.java:1101)
       at 
org.apache.flink.streaming.connectors.kafka.FlinkKafkaProducer.initializeState(FlinkKafkaProducer.java:1037)
         at 
org.apache.flink.streaming.util.functions.StreamingFunctionUtils.tryRestoreFunction(StreamingFunctionUtils.java:178)
         at 
org.apache.flink.streaming.util.functions.StreamingFunctionUtils.restoreFunctionState(StreamingFunctionUtils.java:160)
       at 
org.apache.flink.streaming.api.operators.AbstractUdfStreamOperator.initializeState(AbstractUdfStreamOperator.java:96)
        at 
org.apache.flink.streaming.api.operators.AbstractStreamOperator.initializeState(AbstractStreamOperator.java:284)
     at 
org.apache.flink.streaming.runtime.tasks.StreamTask.initializeStateAndOpen(StreamTask.java:989)
      at 
org.apache.flink.streaming.runtime.tasks.StreamTask.lambda$beforeInvoke$0(StreamTask.java:453)
       at 
org.apache.flink.streaming.runtime.tasks.StreamTaskActionExecutor$SynchronizedStreamTaskActionExecutor.runThrowing(StreamTaskActionExecutor.java:94)
         at 
org.apache.flink.streaming.runtime.tasks.StreamTask.beforeInvoke(StreamTask.java:448)
        at 
org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:460) 
     at org.apache.flink.runtime.taskmanager.Task.doRun(Task.java:708)       at 
org.apache.flink.runtime.taskmanager.Task.run(Task.java:533)         at 
java.lang.Thread.run(Thread.java:748) Caused by: 
org.apache.kafka.common.KafkaException: Could not find a coordinator with type 
TRANSACTION with key Co-Process-Broadcast -> Map -> Sink: 
Unnamed-c4ffe334eee7821772b24597621064ce-32 due tounexpected error: The server 
experienced an unexpected error when processing the request.  at 
org.apache.kafka.clients.producer.internals.TransactionManager$FindCoordinatorHandler.handleResponse(TransactionManager.java:1142)
   at 
org.apache.kafka.clients.producer.internals.TransactionManager$TxnRequestHandler.onComplete(TransactionManager.java:909)
     at 
org.apache.kafka.clients.ClientResponse.onComplete(ClientResponse.java:109)  at 
org.apache.kafka.clients.NetworkClient.completeResponses(NetworkClient.java:557)
     at org.apache.kafka.clients.NetworkClient.poll(NetworkClient.java:549)  at 
org.apache.kafka.clients.producer.internals.Sender.runOnce(Sender.java:288)  at 
org.apache.kafka.clients.producer.internals.Sender.run(Sender.java:235)      
... 1 more

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