java visualvm jstatd启动时遇到的一个错误

今天启动jstatd时一直报下面的错误:

root@cvs jstatd]# jstatd -J-Djava.security.policy=/opt/joycube/jstatd/tools.policy
Could not contact registry
Connection refused to host: 192.168.17.12; nested exception is:
        java.net.ConnectException: Connection timed out
java.rmi.ConnectException: Connection refused to host: 192.168.17.12; nested exception is:
        java.net.ConnectException: Connection timed out
        at sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:619)
        at sun.rmi.transport.tcp.TCPChannel.createConnection(TCPChannel.java:216)
        at sun.rmi.transport.tcp.TCPChannel.newConnection(TCPChannel.java:202)
        at sun.rmi.server.UnicastRef.newCall(UnicastRef.java:341)
        at sun.rmi.registry.RegistryImpl_Stub.rebind(Unknown Source)
        at java.rmi.Naming.rebind(Naming.java:177)
        at sun.tools.jstatd.Jstatd.bind(Jstatd.java:57)
        at sun.tools.jstatd.Jstatd.bind(Jstatd.java:66)
        at sun.tools.jstatd.Jstatd.main(Jstatd.java:143)
Caused by: java.net.ConnectException: Connection timed out
        at java.net.PlainSocketImpl.socketConnect(Native Method)
        at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:339)
        at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:200)
        at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:182)
        at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
        at java.net.Socket.connect(Socket.java:579)
        at java.net.Socket.connect(Socket.java:528)
        at java.net.Socket.<init>(Socket.java:425)
        at java.net.Socket.<init>(Socket.java:208)
        at sun.rmi.transport.proxy.RMIDirectSocketFactory.createSocket(RMIDirectSocketFactory.java:40)
        at sun.rmi.transport.proxy.RMIMasterSocketFactory.createSocket(RMIMasterSocketFactory.java:147)
        at sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:613)
        ... 8 more

上面提示的ip很奇怪。这台机器的ip应该是10.234.10.12

运行hostname -i,显示为192.168.17.12

这是错误的IP,打开 /etc/hosts,发现里面配置了本机名cvs解析为192.158.17.12,这台机器以前换过ip,修改为10.234.10.12。

ok,jstatd可以正常运行了。

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