I've deployed mod_jk on some production RHEL5 servers, and the problem is that every time an updated httpd package gets installed, mod_jk gets removed. This is because the httpd has an unversioned "obsoletes" on mod_jk. I checked in Fedora, and that obsoletes was removed from the httpd package back in 2007. But the RHEL package still has it. I don't know or understand the reason behind that obsoletes, as none is given in the %changelog for the addition nor the removal. But I don't think removing it from the RHEL package could break anything, it could only avoid breakage. This is why I'm asking to have it removed. At the very least, if this is for some (old) upgrade path, then version the obsoletes with the lowest possible mod_jk version to at least not cause problems with setups where mod_jk is recent.
Hmmmm. That change was introduced: * Mon Dec 5 2005 Joe Orton <jorton> 2.2.0-2 I think we expected at the time that mod_jk would indeed be obsoleted by mod_proxy_ajp. But I agree that the Obsoletes is inappropriate. Thanks for the report.
FWIW, I've just checked and the EL4 httpd package is fine. It's strange that no one has reported it before against EL5, as it has apparently already been noticed by others, for instance in bug #440159.
An advisory has been issued which should help the problem described in this bug report. This report is therefore being closed with a resolution of ERRATA. For more information on therefore solution and/or where to find the updated files, please follow the link below. You may reopen this bug report if the solution does not work for you. http://rhn.redhat.com/errata/RHBA-2009-1380.html