[jira] [Created] (KAFKA-4966) Producer maybe throw a NullPointerException under a network environment where packet loss and error packets exist.

[Bo Wang (JIRA)]

Bo Wang created KAFKA-4966:
------------------------------

             Summary: Producer maybe throw a NullPointerException under a 
network environment where packet loss and error packets exist.
                 Key: KAFKA-4966
                 URL: https://issues.apache.org/jira/browse/KAFKA-4966
             Project: Kafka
          Issue Type: Bug
          Components: clients
    Affects Versions: 0.10.2.0, 0.10.0.1
            Reporter: Bo Wang


2017-03-27 18:45:54,757 | ERROR | [kafka-producer-network-thread | producer-1] 
|  Uncaught error in request completion:  | 
org.apache.kafka.clients.NetworkClient.poll(NetworkClient.java:284)
java.lang.NullPointerException
        at 
org.apache.kafka.clients.producer.internals.Sender.canRetry(Sender.java:342)
        at 
org.apache.kafka.clients.producer.internals.Sender.completeBatch(Sender.java:310)
        at 
org.apache.kafka.clients.producer.internals.Sender.handleProduceResponse(Sender.java:286)
        at 
org.apache.kafka.clients.producer.internals.Sender.access$100(Sender.java:57)
        at 
org.apache.kafka.clients.producer.internals.Sender$1.onComplete(Sender.java:372)
        at org.apache.kafka.clients.NetworkClient.poll(NetworkClient.java:282)
        at 
org.apache.kafka.clients.producer.internals.Sender.run(Sender.java:241)
        at 
org.apache.kafka.clients.producer.internals.Sender.run(Sender.java:136)
        at java.lang.Thread.run(Thread.java:745)



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