YARN-11553. Change the time unit of scCleanerIntervalMs in Router. (#5965)

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-router/src/main/java/org/apache/hadoop/yarn/server/router/Router.java

@@ -158,7 +158,7 @@ public class Router extends CompositeService {
         ROUTER_DEREGISTER_SUBCLUSTER_ENABLED, DEFAULT_ROUTER_DEREGISTER_SUBCLUSTER_ENABLED);
     if (isDeregisterSubClusterEnabled) {
       long scCleanerIntervalMs = this.conf.getTimeDuration(ROUTER_SUBCLUSTER_CLEANER_INTERVAL_TIME,
-          DEFAULT_ROUTER_SUBCLUSTER_CLEANER_INTERVAL_TIME, TimeUnit.MINUTES);
+          DEFAULT_ROUTER_SUBCLUSTER_CLEANER_INTERVAL_TIME, TimeUnit.MILLISECONDS);
       this.scheduledExecutorService.scheduleAtFixedRate(this.subClusterCleaner,
           0, scCleanerIntervalMs, TimeUnit.MILLISECONDS);
       LOG.info("Scheduled SubClusterCleaner With Interval: {}.",