> From: "applyhhj" <[email protected]> > To: "openstack" <[email protected]> > Date: 09/27/2015 11:16 AM > Subject: [Openstack] Data transmission failure between VM and outside machines > > Hi, I have setup the openstack cloud and launched VMs in the cloud. > At first everything went very well. But yesterday evening, due to > some reasons our lab lost power and all servers were shutdown. This > morning I turned on all nodes and try to connect to the VM by ssh > but failed. I used netstat to check the status of port 22. It shows > that connection between VM and machine in the external network can > be established. However the ssh process just stuck at > SSH2_MSG_KEXINIT sent. Also I setup a rabbitmq server in the VM and > the same situation happened. When connecting rabbitmq server through > web ui, netstat shows that connections have been established however > the web browser can not get any data from the server, it shows a > blank page. Also I tried to ssh from one VM to another VM through > internal network, the 192.168.1.0/24 network, similar things > happened. Does anyone know how to fix this problem? Thank you! By > the way the br-ex bridge can only be brought up manually, so after > boot the network node I brought up the br-ex bridge and restart all > relevant network services in network node. Please help me with this > problem. Thank you very much!!
When faced with networking mysteries like that my next step is usually to start taking packet traces at various points. Regards, Mike
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