Hello - My apologies if this has already been asked or the wrong mail list, but Google is not coming up with an answer for me, so here goes...

I am trying to set up the mod_jk connector between an Apache HTTPD server and Tomcat with the intent of supporting virtual hosts, and serving static content from the Apache server and forwarding jsp and servlet requests to Tomcat. Typical scenario I know...


Most of this I have working but the trouble I am having is with the use an Alias directive for the Apache server. Following instructions for the JSP examples that came with my distribution for Tomcat 8, I created a configuration for

 <IfModule mod_jk.c>

  # The following line makes apache aware of the location of
  # the /jsp-examples context
  Alias /jsp-examples "/srv/tomcat/webapps/examples/jsp"

  <Directory "/srv/tomcat/webapps/examples/jsp">
        Options Indexes  FollowSymLinks
        AllowOverride None
    # Controls who can get stuff from this server.
    <IfModule !mod_access_compat.c>
            Require all granted
    </IfModule>
    <IfModule mod_access_compat.c>
        Order allow,deny
        Allow from all
    </IfModule>
  </Directory>

  # Mounted stuff goes via tomcat (ajp13)
  JkMount /jsp-examples tomcatWorker1
  JkMount /jsp-examples/* tomcatWorker1
  # Serve html, css, js, jpg, png and gif using Apache
  JkUnMount /*.html tomcatWorker1
  JkUnMount /*.css tomcatWorker1
  JkUnMount /*.js tomcatWorker1
  JkUnMount /*.jpg  tomcatWorker1
  JkUnMount /*.png  tomcatWorker1
  JkUnMount /*.gif  tomcatWorker1
</IfModule>

I am actually defining this in the context of a virtual host and if necessary I can post its configuration as well.

Using the JK debug level and monitoring the mod_jk.log file I can see what is going wrong, I just don't know how to rectify it -

[Mon Oct 17 09:28:01.145 2016] [30237:139868423546816] [debug] ajp_connection_tcp_send_message::jk_ajp_common.c (1208): sending to ajp13 pos=4 len=469 max=8192 [Mon Oct 17 09:28:01.145 2016] [30237:139868423546816] [debug] ajp_connection_tcp_send_message::jk_ajp_common.c (1208): 0000 12 34 01 D1 02 02 00 08 48 54 54 50 2F 31 2E 31 - .4......HTTP/1.1 [Mon Oct 17 09:28:01.145 2016] [30237:139868423546816] [debug] ajp_connection_tcp_send_message::jk_ajp_common.c (1208): 0010 00 00 0E 2F 6A 73 70 2D 65 78 61 6D 70 6C 65 73 - .../jsp-examples [Mon Oct 17 09:28:01.145 2016] [30237:139868423546816] [debug] ajp_connection_tcp_send_message::jk_ajp_common.c (1208): 0020 2F 00 00 0D 31 39 32 2E 31 36 38 2E 31 30 2E 31 - /...192.168.10.1

This excerpt shows that the Apache server is sending a message to the Tomcat worker telling it to find a resource "/jsp-examples" which of course doesn't really exist and so Tomcat reports a "Not Found" failure. What I want is for the Apache server to send the actual location that this alias is mapped to i.e. "/examples/jsp", which is what actually exists in the Tomcat context. I can fool Tomcat into handling this alias request by creating a link named jsp-examples -> examples/jsp within the Tomcat webapps directory but that seems like a hack and not something I want to have to do/maintain for all the other resources I will want to handle via alias commands.

Is there a magic incantation that I am missing? Thanks in advance for suggestions/help.... Marc...



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