jaikiran pai created KAFKA-1883:
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Summary: NullPointerException in RequestSendThread
Key: KAFKA-1883
URL: https://issues.apache.org/jira/browse/KAFKA-1883
Project: Kafka
Issue Type: Bug
Components: core
Reporter: jaikiran pai
Assignee: jaikiran pai
I often see the following exception while running some tests
(ProducerFailureHandlingTest.testNoResponse is one such instance):
{code}
[2015-01-19 22:30:24,257] ERROR [Controller-0-to-broker-1-send-thread],
Controller 0 fails to send a request to broker
id:1,host:localhost,port:56729 (kafka.controller.RequestSendThread:103)
java.lang.NullPointerException
at kafka.controller.RequestSendThread.doWork(ControllerChannelManager.
scala:150)
at kafka.utils.ShutdownableThread.run(ShutdownableThread.scala:60)
{code}
Looking at that code in question, I can see that the NPE can be triggered
when the "receive" is null which can happen if the "isRunning" is false
(i.e a shutdown has been requested).
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