[GitHub] [hadoop] slfan1989 commented on a diff in pull request #4846: YARN-11290. Improve Query Condition of FederationStateStore#getApplicationsHomeSubCluster.

[GitBox <gi...@apache.org>]

slfan1989 commented on code in PR #4846:
URL: https://github.com/apache/hadoop/pull/4846#discussion_r962057774


##########
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-common/src/main/java/org/apache/hadoop/yarn/server/federation/store/impl/SQLFederationStateStore.java:
##########
@@ -726,13 +731,23 @@ public GetApplicationHomeSubClusterResponse getApplicationHomeSubCluster(
   @Override
   public GetApplicationsHomeSubClusterResponse getApplicationsHomeSubCluster(
       GetApplicationsHomeSubClusterRequest request) throws YarnException {
+
+    if (request == null) {
+      throw new YarnException("Missing getApplicationsHomeSubCluster request");
+    }
+
     CallableStatement cstmt = null;
     ResultSet rs = null;
-    List<ApplicationHomeSubCluster> appsHomeSubClusters =
-        new ArrayList<ApplicationHomeSubCluster>();
+    List<ApplicationHomeSubCluster> appsHomeSubClusters = new ArrayList<>();
 
     try {
       cstmt = getCallableStatement(CALL_SP_GET_APPLICATIONS_HOME_SUBCLUSTER);
+      cstmt.setInt("limit_IN", maxAppsInStateStore);
+      String homeSubClusterIN = null;;

Review Comment:
   I will fix it.



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