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zafer's avatar
zafer
Icon for Nimbostratus rankNimbostratus
Mar 20, 2014

pool member down when we see error code 5XX

i found some rules but it does not solve the my problem. we have 2 apache server and 2 application server. i want set down the apache server when i got error message from it. error message will come from application server topolology like this apache 1 --> app1 apache 2 --> app2 we load balance the apache and admin want set apache when application send 503 error code

 

i tried some rule it use LB::down and member goes inactive but when application available it does not change state to up

 

regards zafer

 

application delivery
availability
deployment
design
devops
iRules
LTM

3 Replies

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  • bboyjnr_8532's avatar
    bboyjnr_8532
    Icon for Cirrus rankCirrus
    Mar 20, 2014

    one option is to reverse the logic of a HTTP monitor and put a regex in the response section.

     

    check the "reverse" option in the http monitor and if the response matches then the member will be marked down as apposed to up.

     

    thanks B

     

  • Cory_50405's avatar
    Cory_50405
    Icon for Noctilucent rankNoctilucent
    Mar 20, 2014

    Why not use an HTTP monitor instead of an iRule? If the servers are up, they should return a 200 message (or something similar). Then if you aren't receiving that, mark the node down.

     

  • zafer's avatar
    zafer
    Icon for Nimbostratus rankNimbostratus
    Mar 21, 2014

    503 message comes from application, we load balance only apache and i guess we need transparent monitor?