@Override
    public void onFailure(Throwable t) {
      LOG.error("TezTaskRunner execution failed for : "
          + getTaskIdentifierString(request, vertex, queryId), t);
      isCompleted.set(true);
      fragmentCompletionHanler.fragmentComplete(fragmentInfo);
      // TODO HIVE-10236 Report a fatal error over the umbilical
      taskRunnerCallable.shutdown();
      logFragmentEnd(false);
    }
Inform the AM that this task has been killed.
llap-server/src/java/org/apache/hadoop/hive/llap/daemon/impl/TaskRunnerCallable.java