*/
public void actionRegistryListConfigs(ActionRegistryArgs registryArgs)
throws YarnException, IOException {
ServiceInstanceData instance = lookupInstance(registryArgs);
RegistryRetriever retriever = new RegistryRetriever(instance);
PublishedConfigSet configurations =
retriever.getConfigurations(!registryArgs.internal);
for (String configName : configurations.keys()) {
if (!registryArgs.verbose) {
log.info("{}", configName);
} else {