@Override
	protected boolean configurationChanged() {
		if (shell != null) {
			LOG.info("Hadoop configuration changed, re-initializing shell...");
		}
		init();
		return true;
	}
HDFS shell commands

@author Jarred Li
@author Glenn Renfro
spring-xd-shell/src/main/java/org/springframework/xd/shell/hadoop/FsShellCommands.java