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Kafka >> mail # dev >> Re: Review Request 17671: Fix KAFKA-1235

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Re: Review Request 17671: Fix KAFKA-1235

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(Updated Feb. 19, 2014, 11:57 p.m.)
Review request for kafka.
Bugs: KAFKA-1235
Repository: kafka

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. On shutdown, let the KafkaHealthCheck to progressively delete the registration path in ZK to resolve the controller-shutdown-itself deadlock.

5. Some unit tests setup/teardown ordering.

  core/src/main/scala/kafka/consumer/SimpleConsumer.scala 6dae149adfd4bfaa0d98aa641dfc41b00fcb6162
  core/src/main/scala/kafka/network/BlockingChannel.scala ab04b3fe0dc674455a74659ad9975458bfbbac36
  core/src/main/scala/kafka/producer/SyncProducer.scala 041cfa59c18fa04706d28e98e58fda3937b6c992
  core/src/main/scala/kafka/server/KafkaConfig.scala 3c3aafc2b3f06fc8f3168a8a9c1e0b08e944c1ef
  core/src/main/scala/kafka/server/KafkaHealthcheck.scala 8c69d095bfa9f79049bf9e6ec86adb7f956c2aeb
  core/src/main/scala/kafka/server/KafkaServer.scala 5e34f95e64eaf12ae7e904ffef32422a365eca86
  core/src/main/scala/kafka/utils/ZkUtils.scala fa86bb94475dec41d5ea1a94f4eebcd5500756e6
  core/src/test/scala/unit/kafka/server/LogRecoveryTest.scala 17a99f182f64c0608a604f0d338b1ac272399e49
  core/src/test/scala/unit/kafka/zk/ZooKeeperTestHarness.scala 4e25b926d32e4885fa141ceaa9156c38629dd3d5

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


Guozhang Wang