[jira] [Created] (KAFKA-1886) SimpleConsumer swallowing ClosedByInterruptException

["Aditya A Auradkar (JIRA)" <ji...@apache.org>]

Aditya A Auradkar created KAFKA-1886:
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             Summary: SimpleConsumer swallowing ClosedByInterruptException
                 Key: KAFKA-1886
                 URL: https://issues.apache.org/jira/browse/KAFKA-1886
             Project: Kafka
          Issue Type: Bug
          Components: producer 
            Reporter: Aditya A Auradkar
            Assignee: Jun Rao


This issue was originally reported by a Samza developer. I've included an exchange of mine with Chris Riccomini. I'm trying to reproduce the problem on my dev setup.

From: criccomi
Hey all,
Samza's BrokerProxy [1] threads appear to be wedging randomly when we try to interrupt its fetcher thread. I noticed that SimpleConsumer.scala catches Throwable in its sendRequest method [2]. I'm wondering: if blockingChannel.send/receive throws a ClosedByInterruptException
when the thread is interrupted, what happens? It looks like sendRequest will catch the exception (which I
think clears the thread's interrupted flag), and then retries the send. If the send succeeds on the retry, I think that the ClosedByInterruptException exception is effectively swallowed, and the BrokerProxy will continue
fetching messages as though its thread was never interrupted.
Am I misunderstanding how things work?
Cheers,
Chris
[1] https://github.com/apache/incubator-samza/blob/master/samza-kafka/src/main/scala/org/apache/samza/system/kafka/BrokerProxy.scala#L126
[2] https://github.com/apache/kafka/blob/0.8.1/core/src/main/scala/kafka/consumer/SimpleConsumer.scala#L75



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