I suppose this question deserved its own thread. Before I spend any
more time trying to get this configured, I would like to know what is
the best way to proceed: mod_jk or mod_proxy_ajp?
Thanks,
Brad
On Feb 24, 2006, at 7:49 AM, Brad O'Hearne wrote:
Jess,
Thanks for the reply. Responses below:
On Feb 24, 2006, at 6:51 AM, Jess Holle wrote:
If you're using Apache 1.3.x or 2.0.x, mod_jk is pretty simple
overall.
No, you don't want to even try in-process stuff and, yes, if you
have a firewall in between Apache and Tomcat that drops idle
connections you should read carefully (this is covered by the docs).
The only big complaint I have is that the mod_jk docs don't make
it terribly clear (or didn't last I checked) exactly how to set
jvmRoute in Tomcat and how extraordinarily critical this is when
doing load balancing. The Tomcat docs don't make this terribly
clear either -- apart from a comment in server.xml. Most everyone
I know who tries mod_jk load balancing gets hung up on this one
point unless/until I give them a detailed explanation. Apart from
the lack of clear/obvious information on this in the mod_jk docs
(which should include it considering most folk won't think to
check both mod_jk and Tomcat docs), this is actually very simple
as well, though.
None of the configuration steps in and of itself are difficult.
Building mod_jk is not difficult. Editing configuration files is
not difficult. Its after you've put it all together, exactly as
noted on a hodge-podge of Googled URLs, and it doesn't work, and
one cryptic line in a log file, and the right connections not being
made between apache and tomcat, which send you into hours of trial
and error. With regards to your comments above, I didn't tangle
with load balancing at all, and apache and tomcat reside on the
same box, no firewall between them. Yes, you'd think this would be
simple.
I am looking forward to mod_proxy_ajp as it is supposed be a tiny
bit faster.
You say you are "looking forward to mod_proxy_ajp" -- does this
mean its not available yet, or you just aren't using it yet? While
I am glad to learn now of mod_proxy_ajp, I guess this kind of adds
to my frustration a bit -- what is the way to go now and why:
mod_proxy_ajp or mod_jk?
Thanks for your help.
Brad
--
Jess Holle
Brad O'Hearne wrote:
mod_proxy_ajp? Yet another twist. Its just hard for me to believe
that "how do I integrate tomcat and apache httpd?" is such a
mystery / unknown. This seems like it would be question #1 on any
Tomcat FAQ.
So where can I found out more about mod_proxy_ajp. Is there a
Tomcat resource which explains the configuration of it?
Brad
Bill Barker wrote:
"Brad O'Hearne" <[EMAIL PROTECTED]> wrote in message news:
[EMAIL PROTECTED]
After wasting time trying to configure mod_jk, I thought I'd
just wipe my mind free and just play dumb for a moment. If
Apache can proxy requests using mod_proxy, what is the benefit
of using mod_jk as an integration technique between httpd and
tomcat, if integration is *not* in-process, which I understand
is not recommended for Tomcat 5.5?
Actually, in-process with mod_jk is only supported (and, I use
the term lightly :) for TC 3.3.x. For any higher versions it
doesn't work at all.
You've managed to grasp the deep, dark plan of the Tomcat
developers: It is expected that people will migrate to
mod_proxy_ajp with Httpd 2.2+, and mod_jk is expected to move to
supporting IIS/SunOne only (and, the later only if somebody
steps up with interest :).
Brad
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