final DataCrawlingThread dataCrawlingThread = new DataCrawlingThread(dataConfig, indexUpdateCallback, initParamMap);
            dataCrawlingThread.setPriority(crawlerPriority);
            dataCrawlingThread.setName(sid);
            dataCrawlingThread.setDaemon(true);

            dataCrawlingThreadList.add(dataCrawlingThread);
            dataCrawlingThreadStatusList.add(Constants.READY);