mod_jk or mod_proxy_ajp for clustering tomcat and ssl

Question

Please tell me what is better in supporting clustering and ssl between mod_jk and mod_proxy_ajp.

Thank you.

Answer 1

Have a look at this FAQ.

Answer 2

Regarding SSL, it should not make any difference if you use mod_jk or mod_proxy_ajp. Especially if you offload SSL in apache and not in tomcat, the transport between httpd <-> tomcat (mod_jk/mod_proxy_ajp) would not be affected.

As mod_proxy_ajp is the newer solution (that grew out of mod_jk), the general advice would be to go for mod_proxy_ajp (at least I'd use this one).

Cheers, Martin

PS: mod_jk and mod_proxy_ajp are load-balancing solutions. clustering is more referring to the part where sessions are replicated between several cluster nodes.