@Override
      public List<ACL> getAclForPath(String path) {
        if (!isSecure || path == null || !path.contains(zkPath)) {
          // No security or the path is below the user path - full access.
          return Lists.newArrayList(ZooDefs.Ids.OPEN_ACL_UNSAFE);
        }
        return createSecureAcls();
      }
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