slfan1989 commented on code in PR #4846:
URL: https://github.com/apache/hadoop/pull/4846#discussion_r964250393
##########
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:
##########
@@ -255,17 +261,36 @@ 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");
}
- GetApplicationsHomeSubClusterResponse.newInstance(result);
+ SubClusterId requestSC = request.getSubClusterId();
+ List<ApplicationHomeSubCluster> result = applications.keySet().stream()
+ .map(applicationId -> generateAppHomeSC(applicationId))
+ .filter(appHomeSC -> judgeAdd(requestSC,
appHomeSC.getHomeSubCluster()))
+ .limit(maxAppsInStateStore)
+ .collect(Collectors.toList());
+
+ LOG.info("filterSubClusterId = {}, appCount = {}.", requestSC,
result.size());
return GetApplicationsHomeSubClusterResponse.newInstance(result);
}
+ private ApplicationHomeSubCluster generateAppHomeSC(ApplicationId
applicationId) {
+ SubClusterId subClusterId = applications.get(applicationId);
+ return ApplicationHomeSubCluster.newInstance(applicationId, subClusterId);
+ }
+
+ private boolean judgeAdd(SubClusterId filterSubCluster, SubClusterId
homeSubCluster) {
+ if (filterSubCluster == null) {
+ return true;
+ } else if (filterSubCluster.equals(homeSubCluster)) {
Review Comment:
Thanks for your help reviewing the code, I will modify the code.
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