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From "Anthony W. Marino" <anth...@AWMObjects.com>
Subject Re: Apache 2, Tomcat 4 and mod_jk2
Date Mon, 29 Apr 2002 19:12:29 GMT
Costin,

I appreciate you taking the time to further explain jk!!!

Thank You,
Anthony

> On Fri, 26 Apr 2002, Anthony W. Marino wrote:
> > The example for "mod_jk2" shows a worker's config for "AJP13" but I
> > thought that "jk2" is "AJP14"?
>
> Well, there is a lot of confusion ( and I'm talking about those of us who
> are working on the connector !). We used to call 'ajp13' 3 things:
> - a wire protocol
> - an API
> - an 'worker'
>
> There is even more confusion in the term 'worker', but that's a different
> story.
>
> mod_jk(1,2) are all supporting multiple protocols and multiple APIs.
> By protocol I mean the wire format, how the strings, ints, etc are
> marshalled and packed. For example we support 'ajp12' - the protocol
> that is used in mod_jserv, and we support what is called 'ajp13',
> an extension that is bidirectional and more efficient. There is also
> JNI - but that's a special case.
>
> We also support a couple of 'APIs' - i.e. 'methods' that are called
> on the server and container ( looking at mod_jk as a basic RPC
> mechanism ). We call 'ajp13' the API that is normally used with
> tomcat ( all versions ).
>
> We decided ( I hope ) that the protocol is good enough - I can see
> no major improvement that would justify changing it. If we change,
> I hope we'll just switch to (subset of ) CDR or XDR (i.e. standard
> formats) - but that may affect the performance and add unneeded
> complexity.
>
> mod_jk2 will support additional APIs - i.e. things like autoconfiguration,
> md5-handshaking, etc.
>
> The focus so far has been in refactoring the core to make it more
> flexible and cleanup the configuration - in order to better support
> the new features without messing the code.
>
> If you are interested in more discussions - I would sugest joining
> tomcat-dev. Mod_jk2 is not yet ready - but it will be ready much
> sooner with your help :-)
>
>
> Costin
>
> > Anthony
> >
> > > Thanks to Michael Delamere and Pascal Forget, I'm happy to shout out
> > > that there's a HOWTO for setting up Apache 2, mod_jk2 and Tomcat on
> > > Linux (and therefore probably other UNIX flavours)
> > >
> > > It's linked from http://www.pubbitch.org/jboss
> > >
> > > Regards,
> > >
> > > Simon
> >
> > --
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