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Exploitation_Ca's avatar
Exploitation_Ca
Icon for Nimbostratus rankNimbostratus
Oct 23, 2013

IRULES - LB::reselect

Hello, I want integrate this irule on my loadbalancer. But you can say me if this irule is totaly correct? Because I dont know how "lb::reselect" will react. When my request arrive on my node, if...
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What_Lies_Bene1's avatar
What_Lies_Bene1
Icon for Cirrostratus rankCirrostratus
Oct 23, 2013

OK, so, you may want to always specify the fqdn as lowercase and also lower what your matching against: 

if { [string tolower [HTTP::host]] equals $fqdn }

I'd also reorder your logic as it's possible you'll mark the newly selected node as down:

when HTTP_RESPONSE {
  if { ([HTTP::status] == 500) or ([HTTP::status] == 404) or ([HTTP::status] == 503) } {
    if { [active_members $poolname] > $NbNode } {
      LB::down
      LB::reselect pool $poolname
    }
    else {
      LB::reselect pool $poolname
    }
  }
}

I'm pretty sure you could shorten the HTTP::status lookup too but I'm too tired to try.

Also not you don't have any spaces between your if's and the opening brace {.