* Chris Mooring wrote (18/01/06 15:11): > Hi Michael, > > Could it be that your request headers are > 8K ? I was having some funny > issues with JK2 this week where my page would suddenly show some sort of c > stack trace about a BufferOverFlow Exception (we are no longer using JK2), > but someone sent me this information; > > "It looks like requests can only be 8k long: > <http://tomcat.apache.org/tomcat-4.1-doc/jk2/common/ajpv13a.html> > > What happens if the request headers > max packet size? There is no provision > to send a second packet of request headers in case there are more than 8K (I > think this is correctly handled for response headers, though I'm not > certain). I don't know if there is a way to get more than 8K worth of data > into that initial set of request headers, but I'll bet there is (combine > long cookies with long ssl information and a lot of environment variables, > and you should hit 8K easily). I think the connector would just fail before > trying to send any headers in this case, but I'm not certain. > > http://tomcat.apache.org/tomcat-5.0-doc/catalina/docs/api/constant-values.ht > ml#org.apache.ajp.Ajp13.MAX_READ_SIZE > "
I would like to know whether a) request headers really are limited like this, and b) there's anything I can do about it. We have a web application running under tomcat, and we're using quite a lot of Ajax code, which sends user data to the server via xmlhttp. I've noticed that when using ajp the POST data is corrupted if there is a lot of data (it's rare in practice, but quite recreatable). Without ajp, this doesn't happen. However, it's perfectly possible to upload a large file via a web form using ajp. If I switch to accessing tomcat directly (and this is easy, because I have tomcat on port 8080, and apache on port 80 forwarding to exactly the same tomcat instance) the large POSTs work fine, so I don't think there's anything wrong with the application. Does anyone know any more about this? I'm prepared to dump ajp, but I quite want to keep it if possible, because running apache is convenient for a variety of reasons. Chris --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
