code: @Override
    public void closeOperation(OperationHandle opHandle)
        throws HiveSQLException {
      sessionManager.getOperationManager().getOperation(opHandle)
      .getParentSession().closeOperation(opHandle);
      LOG.debug(opHandle + ": closeOperation");
    }
docs: /* (non-Javadoc)
  @see org.apache.hive.service.cli.ICLIService#closeOperation(org.apache.hive.service.cli.OperationHandle)