otterc commented on code in PR #37624:
URL: https://github.com/apache/spark/pull/37624#discussion_r954026698
##########
common/network-shuffle/src/main/java/org/apache/spark/network/shuffle/RemoteBlockPushResolver.java:
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@@ -795,13 +796,34 @@ public void registerExecutor(String appId,
ExecutorShuffleInfo executorInfo) {
}
/**
- * Close the DB during shutdown
+ * Shutdown mergedShuffleCleaner and close the DB during shutdown
*/
@Override
public void close() {
+ if (!mergedShuffleCleaner.isShutdown()) {
+ // Use two phases shutdown refer to
+ //
https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/ExecutorService.html
+ try {
+ mergedShuffleCleaner.shutdown();
+ // Wait a while for existing tasks to terminate
+ if (!mergedShuffleCleaner.awaitTermination(10L, TimeUnit.SECONDS)) {
Review Comment:
IMO this timeout, which is related to shutdown of the service, is not
something cluster admin would try to tune. I don't really see much benefits of
making it configurable. If the need arises, then it can be made configurable in
the future. For now, I would not add another specific config for it.
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