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  • 1.  Jupyter Notebook Kernel not working

    Posted Fri June 05, 2020 12:33 PM
    Hello,

    We have installed Cognos Analytics 11.1.6 and Congnos Jupyter Server in the same severs but we are facing one issue

    When we try to create a new notebook from outside the server we are getting and Kernel Error with this error in the chrome console.

    jquery.min.js:2 POST http://IP/ibmcognos/bi/v1/jupyter/user/xQ29nbm9zRXg6dTp1aWQ9YWRtaW4_3e877ea1768b359a/api/sessions 404 (Not Found)

    IP: External IP 

    When we try to create a new notebook from inside the server, and using the FQDN, we are getting a different error, I am not getting the kernel error but Chrome console is showing this.

    WebSocket connection to 'ws://FQDN/ibmcognos/bi/v1/jupyter/user/xQ29nbm9zRXg6dTp1aWQ9YWRtaW4_3e877ea1768b359a/api/kernels/9fe88877-56ed-4c17-85a2-f782b5d9a138/channels?session_id=3b44454c0ef5455f82ed73b7e52cecdd' failed: Error during WebSocket handshake: Unexpected response code: 400

    Docker containers are up and running.

    Please can you advise?

    The server specification are
    Azure Standard D8 v3 (8 vcpus, 32 GiB memory)Windows 10 Enterprise 2019 LTSC• 8 vcpus, 32 GiB memory• Processor: AMD EPYC 7452 32-Core Processor 2.35 GHz• Disk1 (OS): 127GiB• Disk2: 1024 GiB
    Ports: 80 and 8000 are opened

    Thanks

    ------------------------------
    Pablo Patruno
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    #CognosAnalyticswithWatson


  • 2.  RE: Jupyter Notebook Kernel not working

    Posted Fri June 26, 2020 10:17 AM
    Hey Pablo,

    It looks like you have a gateway in front of Cognos, judging by the /ibmcognos/ portion of the URL. Has the gateway been configured
    properly to allow for the "ws" request to pass through?

    Here are some docs that may help:
    https://www.ibm.com/support/knowledgecenter/SSEP7J_11.1.0/com.ibm.swg.ba.cognos.inst_cr_winux.doc/t_config_ish_with_ssl.html#task_d1m_35h_x1b__apache_gateway_step

    Best,
    Rob

    ------------------------------
    ROBERT MCAULEY
    ------------------------------