Forum Discussion
Aaron_Tebo_7015
Nimbostratus
NimbostratusProxyPass rule give error
I am using this rule from devcentral. http://devcentral.f5.com/wiki/default.aspx/iRules/ProxyPass.html
On some of my redirects I get the following error on execution:
TCL error: ProxyPasstestf5.harrisi.net HTTP_RESPONSE - Illegal argument. Cant execute in the current context. line 60 invoked from within HTTP::header $header foreach body line 2 invoked from within foreach header {Location Content-Location URI} { set protocol [substr [HTTP::header $header] 0 $host_serverside] if {$protocol ne ...
How can I troubleshoot to figureout why I am getting this error?
Thanks,
Aaron
hoolioCirrostratus
Hi Aaron,
Do you have any other iRules added to the virtual server? Which LTM version are you running?
Aaron
Aaron_Tebo_7015Yes I have a 404 catch rule in addition to the proxypass rule. I am running 9.4.3.
Thanks,
Aaron- hoolioCan you post that iRule? I'd guess it's a conflict between the two rules when one is trying to remove a header from an LTM generated response.
Aaron - Aaron_Tebo_7015Here is the 404 rule:
when RULE_INIT {
set error_404 {
Page Not Found[HTTP::status] Error
Page Not Found
The requested URL
was not found on this server.$HTTP_URI
}
}
when HTTP_REQUEST {
set HTTP_URI [HTTP::uri]
log local0. [HTTP::host]
log local0. [HTTP::path]
}
when HTTP_RESPONSE {
log local0. [HTTP::status]
log local0. [HTTP::host]
if { [HTTP::status] == 404 } {
HTTP::respond 404 content [subst $::error_404]
}
} - hoolioThat sounds about right. You could add a check in the ProxyPass iRule to exit the HTTP_RESPONSE event immediately if the status is a 404. Something like this should work at the top of the ProxyPass HTTP_RESPONSE event:
when HTTP_RESPONSE { Exit this event in this rule if the server response is a 404 as we send a custom response for 404s from another rule if {[HTTP::status] == 404}{ return } }
Aaron - Aaron_Tebo_7015I will give that a try. I will let you know how it goes.
Thanks,
Aaron