mod_jserv (deprecated)
mod_proxy (no loadbalancing)
- This is a quite old apache module that
isn't intended as a connector but as
a proxy (It forwards incoming request to an
IP/Port and sends the response to the requesting
client). I haven't tried to use mod_proxy
but I think that you just use it to forward
HTTP reqests to the HttpConnector (or Coyote)
mod_jk
- Successor of mod_jserv
the current connector for load balancing.
AFAIK this is the most stable connector for tomcat 4.0
and apache 1.3.
mod_webapp (no loadbalancing)
- This connector was intended as the replacement
of mod_jk for tomcat 4.0. As it wasn't ready
when tomcat 4.0 was released, some peopled
started to extend mod_jk to work with 4.0.
From then on mod_jk started a live of it's own.
AFAIK this connector has also the drawback this it forwards
all requests for a webapp to tomcat (also for static
resources).
mod_jk2
- I think this offspring started with apache 2.
As far as I can remember mod_jk has a design problem
with a nulti threaded apache (AFAIK under windows
this is the default for apache). This connector
was announces as beta several month ago, and I'm
not aware that this state has changed.
coyote
- Here you have two different components:
- CoyoteConnector is just a HTTP 1.1 Connector
to use tomcat stand alone
http://jakarta.apache.org/tomcat/tomcat-4.1-doc/config/coyote.html
- Jk 2 Connector is a new Connector that implements
the java side of the mod_jk/mod_jk2 connectors
http://jakarta.apache.org/tomcat/tomcat-4.1-doc/config/jk.html
http://jakarta.apache.org/tomcat/tomcat-4.1-doc/config/jk2.html
For an overview see:
http://jakarta.apache.org/tomcat/tomcat-4.1-doc/config/connectors.html
Ralph Einfeldt
Uptime Internet Solution Center GmbH
Hamburg, Germany
Hosting, Content Management, Java Consulting
http://www.uptime-isc.de
> -----Ursprüngliche Nachricht-----
> Von: Schnitzer, Jeff [mailto:[EMAIL PROTECTED]]
> Gesendet: Mittwoch, 25. September 2002 01:59
> An: [EMAIL PROTECTED]
> Betreff: Copious Connectors Conundrum
>
> Hi! I'm bewildered by the array of connector options. I'm trying to
> hook up a cluster of Tomcat 4.0.4 instances (running in JBoss) behind
> Apache 1.3, all running on Linux. I'm looking for a stable,
> production-quality option.
>
> mod_jserv (this is deprecated, right?)
> mod_jk
> mod_jk2
> mod_webapp
> mod_proxy (this is a simple proxy that doesn't offer
> clustering, right?)
> coyote (this is only for tomcat 4.1, right?)
>
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