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zeesh86_123075's avatar
zeesh86_123075
Icon for Nimbostratus rankNimbostratus
Jun 13, 2014

irule performance issue

We recently got bought out and I had to redirect about 800 URI's. I wrote three irules to accomplish this because I was crossing the character limit for each irule. I noticed that the website took qu...
application delivery
deployment
devops
iRules
LTM
performance
  • Kevin_Davies_40's avatar
    Kevin_Davies_40
    Jun 13, 2014

    You should be using data classes for this task. Something similar to..

    when HTTP_REQUEST {
  if {[class match [HTTP::uri] equals myclass]} {
     HTTP::redirect [class match -value [HTTP::uri] equals myclass]
  }
}

    Then define a string data class with your redirect requirements.

    Name                  Value
/home                 http://newhome.host.com/home
/home2                http://otherhome.host.com
Kevin_Davies_40's avatar
Kevin_Davies_40
Icon for Nacreous rankNacreous
Jun 13, 2014

You should be using data classes for this task. Something similar to..

when HTTP_REQUEST {
  if {[class match [HTTP::uri] equals myclass]} {
     HTTP::redirect [class match -value [HTTP::uri] equals myclass]
  }
}

Then define a string data class with your redirect requirements.

Name                  Value
/home                 http://newhome.host.com/home
/home2                http://otherhome.host.com
  • Kevin_Davies_40's avatar
    Kevin_Davies_40
    Icon for Nacreous rankNacreous
    Jun 13, 2014
    This can be easily adapted for hosts, use [HTTP::host] instead of [HTTP::uri] and the name in the data class becomes the host name. Also we used the matching expression "equals"... there is also starts_with, ends_with and contains for more flexibility.