@RequiresSession
  public List<HostRoleCommandEntity> findByRequest(long requestId) {
    return findByRequest(requestId, false);
  }
Retrieves minimal host role command columns which are required to calculate stare state.
@param taskIds collection of host role commands to process.
@return minimized host role command entities.
ambari-server/src/main/java/org/apache/ambari/server/orm/dao/HostRoleCommandDAO.java