[
https://issues.apache.org/jira/browse/SPARK-27804?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
duyu updated SPARK-27804:
-------------------------
Description:
LiveListenerBus.scala
{code}
private[spark] def addToQueue(
listener: SparkListenerInterface,
queue: String): Unit = synchronized {
if (stopped.get()) {
throw new IllegalStateException("LiveListenerBus is stopped.")
}
queues.asScala.find(_.name == queue) match {
case Some(queue) =>
queue.addListener(listener)
case None =>
// it will create multiple AsyncEventQueues with the same name when run
in multi-thread scene and those created AsyncEventQueues will be added to queues
val newQueue = new AsyncEventQueue(queue, conf, metrics, this)
newQueue.addListener(listener)
if (started.get()) {
newQueue.start(sparkContext)
}
queues.add(newQueue)
}
}
{code}
was:
LiveListenerBus.scala
{code:scala}
private[spark] def addToQueue(
listener: SparkListenerInterface,
queue: String): Unit = synchronized {
if (stopped.get()) {
throw new IllegalStateException("LiveListenerBus is stopped.")
}
queues.asScala.find(_.name == queue) match {
case Some(queue) =>
queue.addListener(listener)
case None =>
// it will create multiple AsyncEventQueues when run in multi-thread
scene and those created AsyncEventQueues will be added to queues
val newQueue = new AsyncEventQueue(queue, conf, metrics, this)
newQueue.addListener(listener)
if (started.get()) {
newQueue.start(sparkContext)
}
queues.add(newQueue)
}
}
{code}
> LiveListenerBus#addToQueue : create multiple AsyncEventQueues under race
> condition
> ----------------------------------------------------------------------------------
>
> Key: SPARK-27804
> URL: https://issues.apache.org/jira/browse/SPARK-27804
> Project: Spark
> Issue Type: Bug
> Components: Spark Core
> Affects Versions: 2.4.3
> Reporter: duyu
> Priority: Major
>
> LiveListenerBus.scala
> {code}
> private[spark] def addToQueue(
> listener: SparkListenerInterface,
> queue: String): Unit = synchronized {
> if (stopped.get()) {
> throw new IllegalStateException("LiveListenerBus is stopped.")
> }
> queues.asScala.find(_.name == queue) match {
> case Some(queue) =>
> queue.addListener(listener)
> case None =>
> // it will create multiple AsyncEventQueues with the same name when
> run in multi-thread scene and those created AsyncEventQueues will be added to
> queues
> val newQueue = new AsyncEventQueue(queue, conf, metrics, this)
> newQueue.addListener(listener)
> if (started.get()) {
> newQueue.start(sparkContext)
> }
> queues.add(newQueue)
> }
> }
> {code}
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