On 02.10.2010 20:40, David Dabbs wrote:
Hello.
I'm running Tomcat fronted by Apache httpd via mod_proxy_ajp.
There's a small bit of data from my Servlet response I'd like to
get into the Apache access_log.
I know I could set a response header, say X-MyData, and log
that using a CustomLog directive. But I don't want this header
cruft going out with the response from Apache. Would I use mod_headers
to remove this header (and yet still log to access_log)?
Another possibility is to use a "note," which I can also log
using CustomLog. It's not clear though, how I would set this note
using the Response obj available to my servlet code and have it
propagate back through AJP.
Looking for the best way to skin this cat.
Notes can only be set from within an Apache module. A response header is
the only thing that survives passing the response from Tomcat to Apache.
And yes, you should be able to remove the header with mod_headers, but:
I would expect that the header is then gone for Apache mod_log_config to :(
Would it suffice to log things in a Tomcat access log (can log e.g.
request attributes, which are not sent to the client), and generate a
unique ID there that you send back to Apache (and the client) and log
there too, so that you can correlate one to one?
Regards,
Rainer
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