IBM QRadar

IBM QRadar

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  • 1.  Qradar App displaying blank pages

    Posted Wed November 27, 2024 03:32 AM

    Hi Community,

    The machine running my apphost recently shutdown. After restarting the host and doing deploy some applications displaying blank pages on GUI

    I did some troubleshooting but cannot find a resolution.

    Recon ps giving below output

    All apps are in running state

    Any one with a suggestion on how to resolve this.

    Thanks,

    Evan.



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    Evan Miriti
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  • 2.  RE: Qradar App displaying blank pages

    Posted Thu November 28, 2024 08:21 AM

    Did you look if any clues exist in qradar.log or qradar.error? 

    Did you have a look in app logs under /store/docker/volumes/qapp_<appid>/log ?

    Check if the right hostname is in /etc/sysconfig/network

    Check if the connection to tomcat works using /opt/qradar/bin/test_tomcat_connection.sh

    Problem could be related to certificates. Maybe systemctl restart qradarca-monitor can help. If certificates are the cause, eventually, maybe clearing all the certificates using  /opt/qradar/ca/bin/reset-qradar-ca.sh all --reset   could help.



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    Dusan VIDOVIC
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  • 3.  RE: Qradar App displaying blank pages

    Posted Fri November 29, 2024 03:24 AM

    Hi Dusan,

    Thank you for your input. 

    I had done the suggested preliminary troubleshooting steps but could not narrow down to the cause.

    Eventually , I cleared cache from all browsers and the apps that were black are now loading content.

    Thank you again for your support.



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    Evan Miriti
    ------------------------------