tomcat 集群 错误信息

2007-11-6 17:07:34 org.apache.catalina.cluster.tcp.ReplicationTransmitter sendMe
ssageData
警告: Unable to send replicated message, is server down?
java.net.ConnectException: Connection refused: connect
        at java.net.PlainSocketImpl.socketConnect(Native Method)
        at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:305)
        at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:171)
        at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:15
        at java.net.Socket.connect(Socket.java:452)
        at java.net.Socket.connect(Socket.java:402)
        at java.net.Socket.<init>(Socket.java:309)
        at java.net.Socket.<init>(Socket.java:153)
        at org.apache.catalina.cluster.tcp.SocketSender.connect(SocketSender.jav


请帮助看看，多谢！