@Override
  public void blacklistNode(NodeId nodeId) {
    LOG.info("BlacklistNode not supported");
    // TODO Disable blacklisting in Tez when using LLAP, until this is properly supported.
    // Blacklisting can cause containers to move to a terminating state, which can cause attempt to be marked as failed.
    // This becomes problematic when we set #allowedFailures to 0
    // TODO HIVE-13484 What happens when we try scheduling a task on a node that Tez at this point thinks is blacklisted.
  }
The difference between this and getTotalResources() is that this only gives currently free
resource instances, while the other lists all the instances that may become available in a
while.
llap-tez/src/java/org/apache/hadoop/hive/llap/tezplugins/LlapTaskSchedulerService.java