[rt-users] mod_perl2 compatibility
Ian Ward
support at cyberpro.com.au
Sat Jul 9 20:52:20 EDT 2005
Chris Meyer wrote:
> Can someone clarify the current state of mod_perl2 + Apache 2.x
> compatibility for RT 3.4?
> It would be nice if this information was stated unambiguously in the
> installation guides.
Hi Chris,
We have been running rt ( differing version ) with mod_perl2 now for
nearly 3 years.
Never had a problem, however it is slow.
But we did it because it worked and it was easy.
However, the system running RT has been upgraded to FC4 and RT is
currently broken. ( even after all rt-test-dependancies )
We get the error:
[error] Can't locate Apache2.pm in @INC in the httpd log even though
perl-Apache::DBI is installed and mod_perl2
We were running RT 3.2.2. ( and earlier versions ) on Fedora Core 2
The upgrade ( fresh install ) to FC4 has been fine for everything except RT
Now that it is broken, I have to put some effort into fixing it.
I will take the advice of the good people here and try FastCGI ( they
really do seem to feel strongly that mod_perl2 should be avoided )
I have kept a posting to the list from March ready for this time, here
it is in full... (hope this helps)
The post is from Wiliam Harrison <harrison at itrd.gov>
PS> I don't post very often so can I just say a BIG thanks to Jesse and
crew. RT Rocks!
================================================================================
Well, thanks to hard work and effort from others, this procedure has been verified to work across at least three installations of RHEL 4. If you think it would be of value, I'm happy to add it to the wiki.
Installation procedure follows...
-William
Installing RT on RHEL 4 with FastCGI and MySQL:
Start with a standard install of RHEL, then upgrade / up2date / whatever to get latest versions of installed packages. Then make sure you have the following packages as well:
httpd-devel
mysql
mysqlclient10
mysql-server
mysql-devel
gcc
Install FastCGI...
wget http://www.fastcgi.com/dist/mod_fastcgi-2.4.2.tar.gz
gunzip mod_fastcgi-2.4.2.tar.gz
tar -xvf mod_fastcgi-2.4.2.tar
cd mod_fastcgi-2.4.2
cp Makefile.AP2 Makefile
edit Makefile:
###Modify for location of apache 2 installation:
top_dir = /etc/httpd
make
make install
edit /etc/httpd/conf/httpd.conf
###Add line to load FastCGI module:
LoadModule fastcgi_module modules/mod_fastcgi.so
### FastCGI wants to have a place to put its logs, and permission to do so:
mkdir /etc/httpd/logs/fastcgi
mkdir /etc/httpd/logs/fastcgi/dynamic
chown apache:apache /etc/httpd/logs/fastcgi
chown apache:apache /etc/httpd/logs/fastcgi/dynamic
service httpd start
### Check Apache logs to make sure fastcgi started
less /var/log/httpd/error_log
### Should see no lines with [error] referencing FastCGI
### Should see one line indicating a [notice] and the pid of FastCGI
### [Mon Mar 14 9:16:57 2005] [notice] FastCGI: process manager initialized (pid 3478)
Turn on MySQL server, Apache server, set MySQL root password...
chkconfig httpd on
chkconfig mysqld on
service mysqld start
mysqladmin -u root password newpass
Set up CPAN initially...
perl -MCPAN -e shell
RT Pre-Install...
### RT requires its own group, so let's add it now lest we forget:
groupadd rt
### RT gets initiated by apache, so add apache to the rt group:
edit /etc/group
### Change the line:
### rt:x:501:
### to read:
### rt:x:501:apache
### Disable selinux (or make sure it is disabled):
edit /etc/selinux/config
### Change the line:
### SELINUX=enforcing
### or
### SELINUX=permissive
### to read:
### SELINUX=disabled
### Change permissions on /etc/httpd/logs from within
cd /etc/htttpd/logs
chmod 755 .
Install RT...
wget http://download.bestpractical.com/pub/rt/release/rt-3.4.1.tar.gz
gunzip rt.tar.gz
tar -xvf rt.tar
cd rt-3.4.1/
### Set up the makefile for us with the proper settings:
./configure --with-web-user=apache --with-web-group=apache --with-mysql --with-fastcgi
### Show us what's missing and what's not:
perl sbin/rt-test-dependencies --with-mysql --with-fastcgi --verbose
### Try to install what's missing for us through CPAN:
perl sbin/rt-test-dependencies --with-mysql --with-fastcgi --install
### Test again and only show us the MISSING items this time:
perl sbin/rt-test-dependencies --with-mysql --with-fastcgi --verbose | grep MISSING
### MIME::Entity won't install without MIME::Base64, so install that first:
perl -MCPAN -e 'install MIME::Base64'
### Now install MIME::Entity:
perl -MCPAN -e 'install MIME::Entity'
### Try to install anything else missing for us:
perl sbin/rt-test-dependencies --with-mysql --with-fastcgi --install
### Test again and make sure nothing is MISSING:
perl sbin/rt-test-dependencies --with-mysql --with-fastcgi --verbose | grep MISSING
### Assuming everything is present and it's a go, install and intialize database...
make install
make initialize-database
### Make a copy of the dist config file to edit:
cp /opt/rt3/etc/RT_Config.pm /opt/rt3/etc/RT_SiteConfig.pm
### Edit your RT config file for your purposes:
edit /opt/rt3/etc/RT_SiteConfig.pm
### Change the line:
### Set($WebBaseURL , "http://RT::WebBaseURL.not.configured:80");
### to read:
### Set($WebBaseURL , "http://your.ip.address:80");
### Change the line:
### Set($WebPath , "");
### to read:
### Set($WebPath , "/rt");
### Edit your Apache config file as well:
edit /etc/httpd/conf/httpd.conf
### NameVirtualHost *:80
### <VirtualHost *:80>
### ServerAdmin root
### DocumentRoot /var/www/html/
### # Adding the following for RT (the ticket tracker)
### AddHandler fastcgi-script fcgi
### <Directory "/opt/rt3/share/html">
### Options FollowSymLinks ExecCGI
### AllowOverride None
### </Directory>
### # Pass through requests to display images
### Alias /NoAuth/images/ /opt/rt3/share/html/NoAuth/images/
### </VirtualHost>
### FastCgiServer /opt/rt3/bin/mason_handler.fcgi -idle-timeout 120
### ScriptAlias /rt /opt/rt3/bin/mason_handler.fcgi
###Restart Apache:
service httpd stop
service httpd start
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