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https://issues.apache.org/jira/browse/YARN-11238?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17607669#comment-17607669
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ASF GitHub Bot commented on YARN-11238:
---------------------------------------
slfan1989 commented on code in PR #4904:
URL: https://github.com/apache/hadoop/pull/4904#discussion_r976337011
##########
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-router/src/main/java/org/apache/hadoop/yarn/server/router/clientrm/FederationClientInterceptor.java:
##########
@@ -702,67 +698,59 @@ public GetClusterMetricsResponse getClusterMetrics(
return RouterYarnClientUtils.merge(clusterMetrics);
}
- <R> Map<SubClusterId, R> invokeConcurrent(ArrayList<SubClusterId> clusterIds,
- ClientMethod request, Class<R> clazz) throws YarnException, IOException {
- List<Callable<Object>> callables = new ArrayList<>();
- List<Future<Object>> futures = new ArrayList<>();
- Map<SubClusterId, IOException> exceptions = new TreeMap<>();
- for (SubClusterId subClusterId : clusterIds) {
- callables.add(new Callable<Object>() {
- @Override
- public Object call() throws Exception {
- ApplicationClientProtocol protocol =
- getClientRMProxyForSubCluster(subClusterId);
- Method method = ApplicationClientProtocol.class
- .getMethod(request.getMethodName(), request.getTypes());
- return method.invoke(protocol, request.getParams());
- }
+ <R> Collection<R> invokeConcurrent(ClientMethod request, Class<R> clazz)
+ throws YarnException {
+
+ Collection<SubClusterId> subClusterIds =
federationFacade.getActiveSubClusterIds();
+
+ List<Callable<Pair<SubClusterId, Object>>> callables = new ArrayList<>();
+ List<Future<Pair<SubClusterId, Object>>> futures = new ArrayList<>();
+ Map<SubClusterId, Exception> exceptions = new TreeMap<>();
+
+ // Generate parallel Callable tasks
+ for (SubClusterId subClusterId : subClusterIds) {
+ callables.add(() -> {
+ ApplicationClientProtocol protocol =
+ getClientRMProxyForSubCluster(subClusterId);
+ Method method = ApplicationClientProtocol.class
Review Comment:
I will fix it.
> Optimizing FederationClientInterceptor Call with Parallelism
> ------------------------------------------------------------
>
> Key: YARN-11238
> URL: https://issues.apache.org/jira/browse/YARN-11238
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: federation
> Affects Versions: 3.4.0, 3.3.4
> Reporter: fanshilun
> Assignee: fanshilun
> Priority: Major
> Labels: pull-request-available
>
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