ORBIT-USER: Error when using nodeHandler

[drastogi at eden.rutgers.edu]

Hey.
I am using nodeHandler to run my experiments. When running the experiment,
before OTG and OTR could start, I got yhe following error:

ERROR whenAll: Exception: No route to host - connect(2) (Errno::EHOSTUNREACH)
        /tmp/eee.674/lib/net/http.rb:560:in `initialize'
        /tmp/eee.674/lib/net/http.rb:560:in `open'
        /tmp/eee.674/lib/net/http.rb:560:in `connect'
        /tmp/eee.674/lib/timeout.rb:48:in `timeout'
        /tmp/eee.674/lib/timeout.rb:76:in `timeout'
        /tmp/eee.674/lib/net/http.rb:560:in `connect'
        /tmp/eee.674/lib/net/http.rb:553:in `do_start'
        /tmp/eee.674/lib/net/http.rb:542:in `start'
        /tmp/eee.674/lib/net/http.rb:440:in `start'
        /tmp/eee.674/lib/handler/omlApp.rb:160:in `startCollectionServer'
        /tmp/eee.674/lib/handler/nodeSet.rb:216:in `startApplication'
        /tmp/eee.674/lib/handler/nodeSet.rb:263:in `startApplications'
        /tmp/eee.674/lib/handler/nodeSet.rb:262:in `each_key'
        /tmp/eee.674/lib/handler/nodeSet.rb:262:in `startApplications'
        /tmp/eee.674/lib/handler/nodeSet.rb:1044:in `startApplications'
        ./aodv-otg-mesh.rb:183
        /tmp/eee.674/lib/handler/nodeSet.rb:922:in `call'
        /tmp/eee.674/lib/handler/nodeSet.rb:922:in `call'
        /tmp/eee.674/lib/handler/nodeSet.rb:910:in `initialize'
        /tmp/eee.674/app/nodeHandler.rb:177:in `new'
        /tmp/eee.674/app/nodeHandler.rb:177:in `whenAll'
        /tmp/eee.674/app/nodeHandler.rb:156:in `initialize'
        /tmp/eee.674/app/nodeHandler.rb:156:in `new'
        /tmp/eee.674/app/nodeHandler.rb:156:in `whenAll'
        /tmp/eee.674/app/nodeHandler.rb:214:in `whenAllInstalled'
        ./aodv-otg-mesh.rb:171
        /etc/nodehandler/grid.cfg:103:in `require'
        /etc/nodehandler/grid.cfg:103:in `load'
        /tmp/eee.674/lib/handler/experiment.rb:38:in `load'
        /tmp/eee.674/app/nodeHandler.rb:991
/tmp/eee.674/lib/net/http.rb:560:in `initialize': No route to host -
connect(2) (Errno::EHOSTUNREACH)
        from /tmp/eee.674/lib/net/http.rb:560:in `open'
        from /tmp/eee.674/lib/net/http.rb:560:in `connect'
        from /tmp/eee.674/lib/timeout.rb:48:in `timeout'
        from /tmp/eee.674/lib/timeout.rb:76:in `timeout'
        from /tmp/eee.674/lib/net/http.rb:560:in `connect'
        from /tmp/eee.674/lib/net/http.rb:553:in `do_start'
        from /tmp/eee.674/lib/net/http.rb:542:in `start'
        from /tmp/eee.674/lib/net/http.rb:379:in `get_response'
        from /tmp/eee.674/app/nodeHandler.rb:387:in `service_call'
        from /tmp/eee.674/lib/handler/omlApp.rb:191:in `stopCollectionServer'
        from /tmp/eee.674/app/nodeHandler.rb:770:in `shutdown'
        from /tmp/eee.674/app/nodeHandler.rb:814:in `shutdown'
        from /tmp/eee.674/app/nodeHandler.rb:1011

Can anyone tell me what this error means?
Devashish.