vrozov commented on code in PR #50594:
URL: https://github.com/apache/spark/pull/50594#discussion_r2057305335


##########
core/src/main/scala/org/apache/spark/util/UninterruptibleThread.scala:
##########
@@ -92,11 +110,17 @@ private[spark] class UninterruptibleThread(
    * interrupted until it enters into the interruptible status.
    */
   override def interrupt(): Unit = {
-    uninterruptibleLock.synchronized {
-      if (uninterruptible) {
-        shouldInterruptThread = true
-      } else {
+    if (uninterruptibleLock.synchronized {
+      shouldInterruptThread = uninterruptible
+      awaitInterruptThread = !shouldInterruptThread
+      awaitInterruptThread

Review Comment:
   Spark uses `UninterruptibleThread` in `Executors` and thread pool, so the 
same instance may be (and is) reused. 



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