@Override
              public int weigh(AttemptPathIdentifier key, AttemptPathInfo value) {
                return key.jobId.length() + key.user.length() + key.attemptId.length() +
                    value.indexPath.toString().length() +
                    value.dataPath.toString().length();
              }
Unregister a specific dag

This method and registerDag must be synchronized externally to prevent races in shuffle token registration/unregistration

@param dir
@param applicationIdString
@param dagIdentifier
llap-server/src/java/org/apache/hadoop/hive/llap/shufflehandler/ShuffleHandler.java