@Override
      public List<ACL> getDefaultAcl() {
        // We always return something from getAclForPath so this should not happen.
        LOG.warn("getDefaultAcl was called");
        return Lists.newArrayList(ZooDefs.Ids.OPEN_ACL_UNSAFE);
      }
Kill query coordination service.
When service discovery is enabled a local kill query can request a kill
on every other HS2 server with the queryId or queryTag and wait for confirmation on denial.
The communication is done through Zookeeper.
service/src/java/org/apache/hive/service/server/KillQueryZookeeperManager.java