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JeremyBlough_19's avatar
JeremyBlough_19
Icon for Nimbostratus rankNimbostratus
Dec 15, 2017

Pool Redirection based on iRule

I have an iRule that uses a specific URI extension to send traffic to a pool.when HTTP_REQUEST { Log debug to /var/log/ltm | 1=yes, 0=no set debug 0

 Identify the requested page and store in a variable
set httppath [string tolower [HTTP::path]]

 Traffic decision based on the requested page's file extension
switch -glob $httppath {
    "/graphql*" 
    {
        if { $debug } { log local0. "**************************************************************" }
        if { $debug } { log local0. "START" }
        if { $debug } { log local0. "Path: $httppath" }
        pool pool_name
    }
}

}

However after a successful redirect to the correct pool, any further requests even without /graphql as a URI get forced to that pool until multiple page refreshes. I am not using persistence profiles with this pool/virtual server.

Can anyone help me at pointing out where this redirect/persistence is coming from.

application delivery
iRules

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  • Andy_McGrath's avatar
    Andy_McGrath
    Icon for Cumulonimbus rankCumulonimbus
    Dec 15, 2017
    HTTP_REQUEST {  Log debug to /var/log/ltm | 1=yes, 0=no set debug 0

 Identify the requested page and store in a variable
set httppath [string tolower [HTTP::path]]

 Traffic decision based on the requested page's file extension
switch -glob $httppath {
    "/graphql*" 
    {
        if { $debug } { log local0. "**************************************************************" }
        if { $debug } { log local0. "START" }
        if { $debug } { log local0. "Path: $httppath" }
        pool pool_name
    }
    default {
        pool defaultPool
    }
}
}