Forum Discussion

swjo_264656's avatar
swjo_264656
Icon for Cirrostratus rankCirrostratus
May 15, 2018

Hi

HTTP health monitor should be co-work with BIGIP & your server.

BIGIP's HTTP monitor check file using 'GET' and Servers Response.

and server should have that file.

In normal case, server should send 200 ok

this is sample

ltm monitor http /Common/M-10.10.10.10-HTTP-80 { defaults-from /Common/http destination 10.10.10.10:80 interval 5 ip-dscp 0 recv 200 send "GET /test.html HTTP/1.1\r\n connection : close \r\n\r\n" time-until-up 0 timeout 11 }

BIGIP check /test.html and server have file based on WEB-home-directory not linux.

And additionally, using Pool`s action-on-service-down -> reject is good way to prevent issue.

 

  • Rosieodonell_16's avatar
    Rosieodonell_16
    Icon for Cirrus rankCirrus
    May 15, 2018

    So if I use this code in the monitor response:

     

    HTTP/1\.[01] [23]0[0-6]

     

    will this cover my needs? I think this will accept all traffic except anything with 500-503 code.

  • swjo_264656's avatar
    swjo_264656
    Icon for Cirrostratus rankCirrostratus
    May 15, 2018

    Hi

     

    Then not using "Receive String" but "Receive Disable String"

     

    Receive String > blank Receive Disable String > 503

     

    From now I`m not using Receive Disable String but it would be work.

     

    before work, please be test and apply.

     

  • swjo_264656's avatar
    swjo_264656
    Icon for Cirrostratus rankCirrostratus
    May 15, 2018

    And I think you should using multiple HTTP monitor.

     

    Monitor_500Receive Disable String > 500 Monitor_501Receive Disable String > 501 Monitor_502Receive Disable String > 502 Monitor_503Receive Disable String > 503

     

    Pool using those 4 monitor and Availability Requirement > all

     

  • Rosieodonell_16's avatar
    Rosieodonell_16
    Icon for Cirrus rankCirrus
    May 15, 2018

    I will test later this week thanks for the info!