unfortunately i am in WILDFLY 9.02 and mod cluster, due to kerberos large header i have the same problem but when i put this ProxyIOBufferSize 16000 for example my application is not more accessible, if i put imitRequestFieldSize 16000 i have the precedent problem...
have you a solution ?
mod cluster and mod_proxy_ajp
thank you with http connector it is not simply as mentioned because we have to add some directive in httpd like ProxyPreserveHost,
i mange to make it work with 2 directives :
it must be a 1024 multiple and at top level in conf file (not in virtualhost)
and if in active directory there is more than 1000 group we have to change the MaxPageSize for ldap retrieving, it is working like a charm