Installing the Eaccelerator cache for php - on CentOS

eAccelerator is an opensource optimizer/cache for php. For a Moodle install, it typically brings down server load (a lot!) by caching frequently requested content. The following setup was used for Centos5.x, but should be similar for other the other Linux flavours.

0. Login as root.

1. Server preparation
The following packages are needed for the eAccelerator install. From the terminal:
yum  -y install php-devel
yum -y groupinstall 'Development Tools'

2. Get the eAccelerator Package

mkdir /temp (if not already created)

cd /temp

wget http://bart.eaccelerator.net/source/0.9.5.3/eaccelerator-0.9.5.3.tar.bz2
tar xvfj eaccelerator-0.9.5.3.tar.bz2
cd eaccelerator-0.9.5.3

3. Configure and Install
phpize 
./configure --with-eaccelerator-shared-memory 
make
make install

4. Create Cache Directory and set permissions
mkdir /var/cache/eaccelerator
chmod 777 /var/cache/eaccelerator


5. Create the config file
nano /etc/php.d/eaccelerator.ini
Add the following lines:

extension="eaccelerator.so"
eaccelerator.shm_size="0"
eaccelerator.cache_dir="/var/cache/eaccelerator"
eaccelerator.enable="1"
eaccelerator.optimizer="1"
eaccelerator.check_mtime="1"
eaccelerator.debug="0"
eaccelerator.filter=""
eaccelerator.shm_max="0"
eaccelerator.shm_ttl="0"
eaccelerator.shm_prune_period="0"
eaccelerator.shm_only="0"
eaccelerator.compress="1"
eaccelerator.compress_level="9"

6. Restart the webserver
service httpd restart

7. Check to see if installed properly
nano /var/www/html/phpinfo.php
Add to file

< php
phpinfo();
?>

Save and exit
Now call the script from your internet browser: http://yourservername/phpinfo.php
Look for the Eaccelerator Section
After a short time, the Cached Scripts entry should be > 0.
It works!


-n