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Apache 2.2, Tomcat6 -mod_proxy_ajp
Just wasted a couple of hours trying to get mod_proxy_ajp working to connect apache 2.2 to my tomcat 6 instance. I was getting an error in the apache logs:
[Thu Apr 15 23:02:37 2010] [error] (120007)APR does not understand this error code: proxy: read response failed from (null) (localhost)[Fri Apr 16 09:33:16 2010] [error] ajp_read_header: ajp_ilink_receive failed
I shutdown tomcat 6, fired up apache-tomcat-5.5.28 and all is well. NO problems.