Adding persistance profiles to pools using Irules

Assuming you set $uri elsewhere, try:

when HTTP_REQUEST {
  if {[HTTP::host] starts_with "nexus"} {
    if {$uri starts_with "/jupiter/"} {
      PROFILE::persist timeout 3600
      pool robocop-1
    }
    elseif {$uri starts_with "/earth/"} {
      PROFILE::persist timeout 1800
      pool robocop-2
    }
  }
}

Please note, I couldn't find any docs for this, so this may not work.

Cheers,

Brian

I'm trying to do a similar function, I want to apply persistance to one pool and not the other. This rule is accepted for proper syntax but it did not work in inital testing. I still need to dig into it. I'm not sure if this is actually a valid rule.

 

 

when HTTP_REQUEST {

 

if { [matchclass [HTTP::uri] starts_with $::static_content] }{

 

use pool content

 

} else {persist cookie passive

 

use pool proxy

 

}

 

 

}

Add logging statements to make sure you are getting the results you anticipate. Try findclass instead of matchclass since you are using the starts_with operand

 

 

Thanks for the input. After testing today, things are not quite working right. Every other connection attempt to the VIP using that rule causes the server in the proxy pool to generate an error (I have each pool down to using a single server). For those requests that are failing the BIG-IP is generating these error messages.

 

 

http_process_state_prepend - Invalid action EV_INGRESS_DATA during ST_HTTP_PREPEND_HEADERS

 

 

Some other threads on the board seem to indicate these errors are caused by the http profile, specifically header inserting and not the rule.

 

 

For the 50% of initial requests that work, everything works fine after that for that session.

 

 

I'll be opening a ticket in the morning.

 

Also, don't forget you can also use "persist none" to disable persist to a particular pool (assuming you have the persistence configured with a profile on the virtual).