public String getAllocationState() {
    synchronized (actualState) {
      return "actual/target " + actualState.sent + "/" + actualState.target
          + (actualState.sending >= 0 ? "; sending" : "");
    }
  }
The actual state of the guaranteed task, and the update state, for the session.
ql/src/java/org/apache/hadoop/hive/ql/exec/tez/WmTezSession.java