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Shivesh_Rege's avatar
Shivesh_Rege
Icon for Nimbostratus rankNimbostratus
Jun 02, 2009

irule causing loop.

Hi Friends,     I am facing an issue with an irule going into loop.Could someone help me resolving it.     when LB_FAILED {   if{[active_members [LB::server]]<1}   HT...
application delivery
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devops
iRules
Joe_Pruitt's avatar
Joe_Pruitt
Jun 02, 2009
The sections where you are checking for the host names and then redirecting to the same hostname will almost certainly cause a recursive loop. 

elseif {[string tolower [HTTP::host]] contains "join" } { 
   HTTP::redirect "http://[HTTP::host]/ecom/pages/nm/join.jsp"} 
 elseif {[string tolower [HTTP::host]] contains "MysteryBookOffer" } { 
   HTTP::redirect "http://[HTTP::host]/ecom/nm/link/home?YSID=1129&YTYP=net&YTID=BN4_02_k8_E66"} 
 elseif {[string tolower [HTTP::host]] contains "historybookclub" } { 
   HTTP::redirect "http://[HTTP::host]ecom/nm/link/home?YSID=1128&YTYP=net&YTID=BN3_02_h7_E65"} 
 elseif {[string tolower [HTTP::host]] starts_with "www" or "www1"} { 
   HTTP::c"http://[HTTP::host]/ecom/pages/nm/nmhomepage.jsp"}

It's bad practice to redirect to the same hostname that will cause a subsequent redirect. You will need to limit your comparisons down and/or add some exclusions to your logic so that the redirects you submitted will not trigger further redirects.

-Joe