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  1. #1

    Remote Adaptor Architecture Question

    We have node js implementation and we are evaluating LightStreamer for chat and real time data distribution

    we installed demo on aws form your provided aws image

    based on remote Node js chat adaptor the following lines

    HOST = 'xx.xx.xx.xx',
    REQ_RESP_PORT = 8001,
    WRITE_PORT = 8002,
    META_PORT = 8003,

    can we assume LighStream and node server can be separated? I mean different server. when we setup in different machines log of Light Stream server like the following

    29.Sep.14 15:56:24,899 < INFO> Loading Metadata Adapter PROXY_NODECHAT
    29.Sep.14 15:56:24,899 < INFO> Loading Data Adapter PROXY_NODECHAT.CHAT_ROOM
    29.Sep.14 15:56:24,907 < INFO> Finished loading Data Adapter PROXY_NODECHAT.CHAT_ROOM
    29.Sep.14 15:56:24,910 < INFO> Loading inner Proxy Data Adapter
    29.Sep.14 15:56:24,930 < INFO> Connecting...
    29.Sep.14 15:56:24,936 < INFO> Waiting for a connection on port 8002...
    29.Sep.14 15:56:24,938 < INFO> Waiting for a connection on port 8001...
    29.Sep.14 15:56:24,942 < INFO> Connecting inner Proxy Metadata Adapter
    29.Sep.14 15:56:24,943 < INFO> Connecting...
    29.Sep.14 15:56:24,943 < INFO> Waiting for a connection on port 8003...

    and client is not working throwing the following error

    WebSocket connection to 'ws://xx.xx.xx.xx/lightstreamer' failed: Error during WebSocket handshake: Unexpected response code: 200 lightstreamer.js:176

    i couldn't find clear information about separated architecture how can I reach more information about the subject

    Burak Tugan

  2. #2
    Power Member
    Join Date
    Jul 2006
    Cesano Maderno, Italy

    Yes you can run the remote adapter on a different machine.

    From the log you show it looks like the remote node adapter was not yet attached to the lightstreamer server. Was the node adapter running at that moment? Did you get any error when running the node adapter?

    The client is getting that error because when it tries to connect to the server, Lightstreamer is not yet listening as it is still waiting for the remote adapter to startup. So, as per now, ignore the client error and concentrate on the adapter/server connection.

  3. #3
    thank you very much Mone, I solved the issue



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