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https://issues.apache.org/jira/browse/YARN-11290?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17599812#comment-17599812
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ASF GitHub Bot commented on YARN-11290:
---------------------------------------
slfan1989 commented on code in PR #4846:
URL: https://github.com/apache/hadoop/pull/4846#discussion_r962108067
##########
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-common/src/main/java/org/apache/hadoop/yarn/server/federation/store/impl/MemoryFederationStateStore.java:
##########
@@ -255,14 +261,33 @@ public GetApplicationHomeSubClusterResponse
getApplicationHomeSubCluster(
@Override
public GetApplicationsHomeSubClusterResponse getApplicationsHomeSubCluster(
GetApplicationsHomeSubClusterRequest request) throws YarnException {
- List<ApplicationHomeSubCluster> result =
- new ArrayList<ApplicationHomeSubCluster>();
- for (Entry<ApplicationId, SubClusterId> e : applications.entrySet()) {
- result
- .add(ApplicationHomeSubCluster.newInstance(e.getKey(),
e.getValue()));
+
+ if (request == null) {
+ throw new YarnException("Missing getApplicationsHomeSubCluster request");
+ }
+
+ List<ApplicationHomeSubCluster> result = new ArrayList<>();
+ List<ApplicationId> applicationIdList =
+ applications.keySet().stream().collect(Collectors.toList());
+
+ SubClusterId requestSubClusterId = request.getSubClusterId();
+ int appCount = 0;
+ for (int i = 0; i < applicationIdList.size(); i++) {
+ if (appCount >= maxAppsInStateStore) {
Review Comment:
Thanks for your suggestion, I will modify the code!
> Improve Query Condition of FederationStateStore#getApplicationsHomeSubCluster
> -----------------------------------------------------------------------------
>
> Key: YARN-11290
> URL: https://issues.apache.org/jira/browse/YARN-11290
> Project: Hadoop YARN
> Issue Type: Improvement
> Components: federation
> Affects Versions: 3.4.0
> Reporter: fanshilun
> Assignee: fanshilun
> Priority: Minor
> Labels: pull-request-available
>
> 1. Currently this interface returns the number of apps in all sub-clusters,
> increasing the limit on the number of query apps, limited to 1000 apps.
> 2. Allows to query the App based on the specified HomeSubCluster.
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