irule not working as expected

Hello sandiksk

 

The most likely is you are having a runtime error in your iRule.

 

Check your /var/log/ltm to confirm.

 

If you prefer to force normal execution of the load balancing in case of error, you should catch your code.

 

REF - https://devcentral.f5.com/articles/irules-101-07-catch

 

KR, Dario.

 

this is the code i am seeing the var/log/ltm

 

TCL error: /Common/qa2_irule - can't read "debug": no such variable while executing "if {$debug} { set LogString "Client [IP::client_addr]:[TCP::client_port] -> [HTTP::host][HTTP::uri]" log local0. "..."

 

Hello sandiksk.

You have several mistakes in your iRule.

1. Set a default condition in your switch sentence (in case of no matching condition)
2. Remove ';' characters in your switch options
3. You should use static variables in RULE_INIT to be CMP-compatible (see THIS)

4. If you are still having problems with 'debug' variable in logs, try to use a comparation statement like this ->

   "

   if { $debug != 0 } {

   " or "

   if { $static::debug != 0 } {

   " (to be CMP-compatible)

KR, Dario.

Cannot access a variable set in

RULE_INIT

unless it is a global (don't do it!) or a static, better to set it in

CLIENT_ACCEPTED

it is minor overhead and quicker to update and apply

Some other minor changes but think the following should work for you:

when CLIENT_ACCEPTED {
    set debug 1
}

when HTTP_REQUEST {
    if {$debug} {
        set LogString "Client [IP::client_addr]:[TCP::client_port] -> [HTTP::host][HTTP::uri]"
        log local0. "============================================="
        log local0. "$LogString (request)"
        foreach aHeader [HTTP::header names] {
            log local0. "$aHeader: [HTTP::header value $aHeader]"
        }
        log local0. "============================================="
    }

    switch -glob [HTTP::header "SOAPAction"] {
        "http://www.user.com/CustomerFacingWebsite/Customer" -
        "http://www.user.com/CustomerFacingWebsite/Points" -
        "http://www.user.com/CustomerInquiry/Balances" { 
            if { [active_members qa2-pool] > 0 } {
                pool qa2-pool
            } else {
                pool qa1-pool
            }
        }
    }
}