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ekaleido's avatar
ekaleido
Icon for Cirrus rankCirrus
Dec 08, 2015

Health Check Return String Not Working

I have verified that the return code is currently a 302, but I want my health check to "pass" if it is 2xx or 3xx, "fail" anything else and mark the node down. I have tried the following Receive String but it causes both nodes to immediately go red.

 

^HTTP.1.1\s([2|3]0[0-9])

 

Any ideas what I've managed to do wrong?

 

application delivery
LTM

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  • nathe's avatar
    nathe
    Icon for Cirrocumulus rankCirrocumulus
    Dec 08, 2015

    Here's a string that should work:

     

    HTTP/1.[01] [23]0[0-9]

     

  • Amine_Kadimi's avatar
    Amine_Kadimi
    Icon for MVP rankMVP
    Dec 08, 2015

    Your receive string seems correct. However you are expecting a 1.1 http response, then make sure that:

    1. You specify the HTTP 1.1 version in your GET String because this is not the default version used by the health monitor.
    2. You send the host header with the request, this is a requirement for HTTP 1.1.

    Example of a HTTP 1.1 GET String with a host set to null:

    GET /index.html HTTP/1.1\r\nHost:\r\n\r\n