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Rusty_Hale_8009's avatar
Rusty_Hale_8009
Icon for Nimbostratus rankNimbostratus
Apr 02, 2007

Need redirect to different pool

I know that I have seen an iRule which says if the primary pool hass no active memebers, then send to another pool (kinda like a maintenance page). I searched the forums and code shares and could not find what I am looking for. Can someone point me in the general direction please? Thanks in advance.
application delivery
dev
devops
iRules
  • hoolio's avatar
    hoolio
    Icon for Cirrostratus rankCirrostratus
    Apr 03, 2007
    You can check to see that there is at least one node in the pool marked up using active_members (Click here😞

    
when LB_SELECTED {
   if {[active_members my_pool] < 1}{
       no nodes available, so set a new pool, send a redirect or send another HTTP response
      ...
   }
}

    You could use LB::server pool with active_members to get the active nodes in the currently selected pool:

    
   [active_members [LB::server pool]] < 1

    Try searching for active_members for more examples or reply here.

    Aaron