goiri commented on code in PR #6265:
URL: https://github.com/apache/hadoop/pull/6265#discussion_r1394640065
##########
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/main/java/org/apache/hadoop/yarn/client/cli/RMAdminCLI.java:
##########
@@ -1039,6 +1114,54 @@ protected String getUsageString() {
return "Usage: rmadmin";
}
+ /**
+ * Parse subClusterId.
+ * This method will only parse subClusterId when Yarn Federation mode is
enabled.
+ *
+ * @param cliParser CommandLine.
+ * @return subClusterId.
+ */
+ protected String parseSubClusterId(CommandLine cliParser) {
+ // If YARN Federation mode is not enabled, return empty.
+ if (!isYarnFederationEnabled(getConf())) {
+ return StringUtils.EMPTY;
+ }
+
+ String subClusterId = cliParser.getOptionValue(OPTION_SUBCLUSTERID);
+ if(StringUtils.isBlank(subClusterId)) {
Review Comment:
Space missing.
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