p-szucs commented on code in PR #7813:
URL: https://github.com/apache/hadoop/pull/7813#discussion_r2228193192
##########
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/webapp/util/WebAppUtils.java:
##########
@@ -107,17 +107,29 @@ public static void
setNMWebAppHostNameAndPort(Configuration conf,
*/
public static <T, R> R execOnActiveRM(Configuration conf,
ThrowingBiFunction<String, T, R> func, T arg) throws Exception {
- int haIndex = 0;
+ int activeRMIndex = 0;
+ int rmCount = 1;
+
if (HAUtil.isHAEnabled(conf)) {
+ ArrayList<String> rmIds = (ArrayList<String>) HAUtil.getRMHAIds(conf);
+ rmCount = rmIds.size();
String activeRMId = RMHAUtils.findActiveRMHAId(conf);
if (activeRMId != null) {
- haIndex = new ArrayList<>(HAUtil.getRMHAIds(conf)).indexOf(activeRMId);
- } else {
- throw new ConnectException("No Active RM available");
+ activeRMIndex = rmIds.indexOf(activeRMId);
+ }
+ }
+
+ // In HA mode activeRMId can be fetched only if user have permission to
check service states.
+ // Otherwise, we find the active one by iterating through the RMs
+ for (int i = activeRMIndex; i < rmCount; i++) {
+ try {
+ String rmAddress = getRMWebAppURLWithScheme(conf, i);
+ return func.apply(rmAddress, arg);
+ } catch (Exception e) {
+ // Ignore and try next RM if there are any
Review Comment:
Fixed
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