Forum Discussion
Problem with iRule that logs excessive HTTP header lengths
Background:
We had been seeing occasional errors in /var/log/ltm that look like this:
HTTP head (33182) exceeded maximum allowed size of 32768
Before increasing MAX HTTP ...
In F5 land, the HTTP headers also include the initial request line (method and URI). You could do the following
when HTTP_REQUEST {
set hlength [string length [HTTP::query]]
if { $hlength > 32768 } {
log local0.info "Header length = $hlength, [HTTP::query]"
}
}
