項目用的一個Center DB, 同一個在防火牆內的服務器采用replication同步。采用的是Transactional replication. 運行至今天，發現不能同步，去pulish服務器查看，發現在任務管理器中有一個進程叫snapshot.exe占用CPU達40%以上，且不能被殺掉。這時并沒有引起注意，只是重新將subscriber刪掉，再建，再同步這些動作均不啟作用。后來將publish中的Agent服務重啟，這時發現snapshot.exe不見了，然后再重建subscriber, 一切恢復。具體是什么原因引起snapshot.exe運行異常，還沒有找到原因。following is event log:
Replication-Replication Distribution Subsystem: agent XXXXXXXX-46 failed. The subscription(s) have been marked inactive and must be reinitialized. NoSync subscriptions will need to be dropped and recreated.
Replication-Replication Distribution Subsystem: agent (null) failed. The subscription to publication 'XXXXXXX' has expired or does not exist.