mod_jk2 with Apache 2 and JBoss 4

[sanjuthomas]

Hi all,

We are planning to implement fail over using mod_jk module. The versions we are planning is mod_jk2 and Apache2 and JBoss 4. We saw in some article that mod_jk1.2 is recomended. Can any one tell the best configuration to implement fail over using JBoss 4.

Thanx in advance,
Sanju.

[davewebb]

http://www.jboss.org/wiki/Wiki.jsp?page=UsingMod_jk1.2WithJBoss

I set mine up with:

JBoss 4.0.1SP1
Httpd 2.0.53
mod_jk 1.2

Everything works great!

[davewebb]

I found this note from JBoss as well to support the reason for using 1.2 only:

Using mod_jk with JBoss
WARNING: Apache Tomcat and JBoss recommend using mod_jk1.2.x connectors only. Both mod_jk and mod_jk2 are deprecated, unsupported and no further developments are going on in the community
DO NOT USE THE STEPS OUTLINED IN THIS WIKI PAGE.(USE UsingMod_jk1.2WithJBoss )

Please use this other wiki instead: UsingMod_jk1.2WithJBoss.

Note: Soon, the functionality provided by mod_jk1.2 will be replaced by a new module, mod_proxy_ajp, that will be included in Apache 2.1.

[sanjuthomas]

Thank You Dav.

Sanju

[sanjuthomas]

Hi Dave,

I read your article, but I did not find "true" element in the file which you are talking about. Please give your comment.


Edit JBOSS_HOME/server/all/deploy/jbossweb-tomcat50.sar/META-INF/jboss-service.xml (replace /all with your own server name)
Locate the element with a name of UseJK?, and set its value to "true":
true


with thanx,
Sanju

[sanjuthomas]

Hi Dave,
Sorry, I mean "UseJK" element!. I did not find that element the file.

Thanx
Sanju

[davewebb]

I promise its there in 4.0.1SP1

[sanjuthomas]

Soory Dave, I was looking in JBoss 4.0 RC, Let me download the 4.0.1SP1

With Thanx,
Sanju

[abitha]

We have mod jk 1.2 with JBoss 3.2.6. I have a question for those of you who have implemented this. Even though two nodes are in the cluster, and they are loadbalanced via mod jk, I am finding that the requests always go to the first node on the list.

Is there anyway to make them alternate, or be more random?

Thanks.