vrozov commented on code in PR #50594:
URL: https://github.com/apache/spark/pull/50594#discussion_r2065348300
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core/src/main/scala/org/apache/spark/util/UninterruptibleThread.scala:
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@@ -69,10 +75,22 @@ private[spark] class UninterruptibleThread(
}
uninterruptibleLock.synchronized {
+ uninterruptible = true
+ }
+
+ while (uninterruptibleLock.synchronized {
// Clear the interrupted status if it's set.
shouldInterruptThread = Thread.interrupted() || shouldInterruptThread
- uninterruptible = true
+ // wait for super.interrupt() to be called
+ !shouldInterruptThread && awaitInterruptThread }) {
+ try {
+ Thread.sleep(100)
Review Comment:
> sleep has a slightly higher overhead than parking/unparking a thread.
I am not convinced that `sleep()` has higher overhead and that it is
important in this case. `sleep()` in this case serves two goals: wait for the
interrupt and clear interrupt. It also simplifies logic for
`UninterruptibleThread.interrupt()`.
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