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Chapter 4. Building httpd modules

4.1. Build a patched httpd from it sources
4.2. Build the 4 modules of mod_cluster
4.3. Build the mod_proxy module

To build httpd-2.2.x from its sources see ASF httpd doc

If needed, patch the httpd-2.2.x sources with (The patch prevents long waiting time when the node IP can't be resolved that should not happen so you can skip the patch part if you don't want to rebuild httpd). mod_proxy_ajp.patch

(cd modules/proxy
  patch -p0 < $location/mod_proxy_ajp.patch

Configure httpd with something like:

./configure  --prefix=apache_installation_directory \
             --with-mpm=worker \
             --enable-mods-shared=most \
             --enable-maintainer-mode \
             --with-expat=builtin \
             --enable-ssl \
             --enable-proxy \
             --enable-proxy-http \
             --enable-proxy-ajp \

Rebuild (make) and reinstall (make install) after that.

You need an httpd installation with mod_proxy (--enable-proxy) and ajp protocol (--enable-proxy-ajp) enabled and with dso enabled (--enable-so)

Download the mod_cluster sources:

svn co http://anonsvn.jboss.org/repos/mod_cluster/trunk/ mod_cluster

Build the mod_cluster modules components, for each subdirectory advertise, mod_manager, mod_proxy_cluster and mod_slotmem do something like:

sh buildconf
 ./configure --with-apxs=apxs_file_location
 cp *.so apache_installation_directory/modules

Where apache_installation_directory is the location of an installed version of httpd-2-2.x.

NOTE: You can ignore the libtool message on most platform:

libtool: install: warning: remember to run `libtool --finish apache_installation_directory/modules'

Once that is done use Apache httpd configuration to configure mod_cluster.

It is only needed for httpd-2.2.x where x < 11. Process like the other mod_cluster modules.