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KAFKA-10157: Fix broken tests due to InterruptedException from FinalizedFeatureChangeListener #8857

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junrao merged 2 commits into from
Jun 12, 2020
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KAFKA-10157: Fix broken tests due to InterruptedException from FinalizedFeatureChangeListener #8857

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KAFKA-10157: Fix broken tests due to FinalizedFeatureChangeListener i…
kowshik Jun 12, 2020
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Address comment from @chia7712
kowshik Jun 12, 2020
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15 changes: 9 additions & 6 deletions core/src/main/scala/kafka/server/FinalizedFeatureChangeListener.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -25,7 +25,6 @@ import kafka.zookeeper.{StateChangeHandler, ZNodeChangeHandler}
import org.apache.kafka.common.internals.FatalExitError

import scala.concurrent.TimeoutException
import scala.util.control.Exception.ignoring

/**
* Listens to changes in the ZK feature node, via the ZK client. Whenever a change notification
Expand Down Expand Up @@ -143,13 +142,17 @@ class FinalizedFeatureChangeListener(zkClient: KafkaZkClient) extends Logging {
private class ChangeNotificationProcessorThread(name: String) extends ShutdownableThread(name = name) {
override def doWork(): Unit = {
try {
ignoring(classOf[InterruptedException]) {
queue.take.updateLatestOrThrow()
}
queue.take.updateLatestOrThrow()
} catch {
case e: Exception => {
error("Failed to process feature ZK node change event. The broker will eventually exit.", e)
throw new FatalExitError(1)
// We ignore InterruptedException. While the queue is empty and this thread is blocking on
// taking an item from the queue, a concurrent call to FinalizedFeatureChangeListener.close()
// could interrupt the thread and cause an InterruptedException to be raised from queue.take().
// In such a case, it is safe to ignore the exception since the thread is being shutdown.
if (!e.isInstanceOf[InterruptedException]) {
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error("Failed to process feature ZK node change event. The broker will eventually exit.", e)
throw new FatalExitError(1)
}
}
}
}
Expand Down