* @throws ChronosException if error to set value in ZooKeeper
*/
public void setPersistentTimestamp(long newTimestamp) throws FatalChronosException,
ChronosException {
if (newTimestamp <= persistentTimestamp) {
throw new FatalChronosException("Fatal error to set a smaller timestamp");
}
if (LOG.isDebugEnabled()) {
LOG.debug("Setting persistent timestamp " + newTimestamp + " in ZooKeeper");
}