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Paul_Zajicek_73's avatar
Paul_Zajicek_73
Icon for Nimbostratus rankNimbostratus
May 01, 2018

Not seeing all http 500 responses

Sometimes our web servers receive repeated duplicated requests from a browser within a few seconds, the web server responds ok for the first few, then it generates 500 errors and these are returned t...
application delivery
iRules
Paul_Zajicek_73's avatar
Paul_Zajicek_73
Icon for Nimbostratus rankNimbostratus
May 02, 2018

The whole rule is quite long, but the relevant bit is:

 

when HTTP_RESPONSE {
 if { [HTTP::status] starts_with "5" } {
  table add -notouch -subtable "ERR5" [IP::client_addr]:[TCP::client_port] 0 950 950
  log local0. "500ERROR: [IP::client_addr] [HTTP::status]"
 }
 }

 

Whatever else is in the rule, I should always see the http response code.