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https://reviews.apache.org/r/17671/
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(Updated Feb. 3, 2014, 8:07 p.m.)


Review request for kafka.


Bugs: KAFKA-1235
    https://issues.apache.org/jira/browse/KAFKA-1235


Repository: kafka


Description (updated)
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Also including several fixes in this patch:

1. Check if channel is null or not for disconnecting instead of checking the 
isConnected variable, since otherwise a socket can be opened but not connected 
due to an exception, and hence lead to socket leak on channel.disconnect().

2. Make sure all connect() is guarded by a disconnect in the catch clause. This 
is also for socket leak prevention.

3. When closing the channel, check both channel and readChannel to see if they 
are null separately to avoid NPE.

4. Let the RequestSendThread to give up retrying sending to a broker if it is 
being shutdown, since its socket server may already be closed but itself is 
blocked on fully shutdown, hence leading to deadlock.


Diffs
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  core/src/main/scala/kafka/consumer/SimpleConsumer.scala 
6dae149adfd4bfaa0d98aa641dfc41b00fcb6162 
  core/src/main/scala/kafka/controller/ControllerChannelManager.scala 
ea8485b479155b479c575ebc89a4f73086c872cb 
  core/src/main/scala/kafka/network/BlockingChannel.scala 
d22dabdf4fc2346c5487b9fd94cadfbcab70040d 
  core/src/main/scala/kafka/producer/SyncProducer.scala 
041cfa59c18fa04706d28e98e58fda3937b6c992 
  core/src/main/scala/kafka/server/KafkaConfig.scala 
3c3aafc2b3f06fc8f3168a8a9c1e0b08e944c1ef 
  core/src/main/scala/kafka/server/KafkaServer.scala 
5e34f95e64eaf12ae7e904ffef32422a365eca86 

Diff: https://reviews.apache.org/r/17671/diff/


Testing (updated)
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unit-tests


Thanks,

Guozhang Wang

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