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https://issues.apache.org/jira/browse/YARN-10885?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17577071#comment-17577071
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ASF GitHub Bot commented on YARN-10885:
---------------------------------------
slfan1989 commented on code in PR #4701:
URL: https://github.com/apache/hadoop/pull/4701#discussion_r940816972
##########
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-common/src/main/java/org/apache/hadoop/yarn/server/federation/utils/FederationStateStoreFacade.java:
##########
@@ -513,6 +528,26 @@ public Map<String, SubClusterPolicyConfiguration> invoke(
return cacheRequest;
}
+ private Object buildGetApplicationHomeSubClusterRequest(ApplicationId
applicationId) {
+ final String cacheKey = buildCacheKey(getClass().getSimpleName(),
+ GET_APPLICATION_HOME_SUBCLUSTER_CACHEID, applicationId.toString());
+ CacheRequest<String, SubClusterId> cacheRequest =
+ new CacheRequest<>(
+ cacheKey,
+ input -> {
+ GetApplicationHomeSubClusterResponse response =
+ stateStore.getApplicationHomeSubCluster(
+
GetApplicationHomeSubClusterRequest.newInstance(applicationId));
Review Comment:
I will fix it.
> Make FederationStateStoreFacade#getApplicationHomeSubCluster use JCache
> -----------------------------------------------------------------------
>
> Key: YARN-10885
> URL: https://issues.apache.org/jira/browse/YARN-10885
> Project: Hadoop YARN
> Issue Type: Improvement
> Reporter: chaosju
> Assignee: fanshilun
> Priority: Major
> Labels: pull-request-available
> Time Spent: 2h 20m
> Remaining Estimate: 0h
>
> Yarn Client getApplicationReport function may produce lots of zookeeper ops,
> Its import to use the JCache that cache the mapping of application and
> subcluster id.
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