slfan1989 commented on code in PR #4701:
URL: https://github.com/apache/hadoop/pull/4701#discussion_r938321651
##########
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-common/src/main/java/org/apache/hadoop/yarn/server/federation/utils/FederationStateStoreFacade.java:
##########
@@ -376,10 +378,20 @@ public void updateApplicationHomeSubCluster(
*/
public SubClusterId getApplicationHomeSubCluster(ApplicationId appId)
throws YarnException {
- GetApplicationHomeSubClusterResponse response =
- stateStore.getApplicationHomeSubCluster(
+ try {
+ if (isCachingEnabled()) {
+ Map<ApplicationId, SubClusterId> cacheAppSubCluster =
+ (Map<ApplicationId, SubClusterId>)
+
cache.get(buildGetApplicationHomeSubClusterRequest(appId.toString()));
Review Comment:
I will fix it.
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