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  1. Zeppelin
  2. ZEPPELIN-113

Provide HTTP Keep Alive for Web and Web Sockets



    • Improvement
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • 0.5.0
    • 0.5.5
    • GUI
    • All


      In environments that utilize TCP Proxies for connections. (Common in Mesos Environments using HAProxy and others). A situation occurs that connections to the GUI and Web Sockets keep TCP sessions open with no data. This makes the TCP Proxies timeout, considering no data a dead connection. This CAN be tuned on the proxy, but it's a bandaid as it's hard to set a value one notebooks that WILL indicate a truly lost connection vs a Notebook that is open with no activity.

      What happens in the notebook, is after no activity in the TCP Proxy Timeout, the notebooks goes to a "Disconnected" state and the page must be refreshed before anything can be run. This is frustrating and may lead to edge case situations were work done by a user is altered in unexpected ways.

      To address this, I propose allowing an option for the web gui and web socks to have a configurable HTTP Keep Alive value in which if there is no user activity, and the notebook is still open, that a keep alive is sent to keep the TCP Active. This would allow flexibility and provide for a better user expierience.




            rajat.iitian Rajat Gupta
            mandoskippy John Omernik
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