Running an application using php 5.4 on AWS using the Amazon Linux.
PHP version is PHP 5.4.28. memcache lib installed from the AWS repo is php54-pecl-memcache-3.0.8-1.11.amzn1.x86_64
I have verified that php is using /etc/php.ini:
[[email protected]]# php -i | grep Config
Configuration File (php.ini) Path => /etc
Loaded Configuration File => /etc/php.ini
The setting show that I should be using memcache:
[root@ip-10-40-17-119 etc]# grep "^session.save" php.ini
session.save_handler="memcache"
session.save_path="tcp://<elasticache-endpoint>:11211"
[root@ip-10-40-17-119 php.d]# php -i | grep session.save
session.save_handler => memcache => memcache
session.save_path => tcp://<elasicache-endpoint>:11211?persistent=1&weight=1&timeout=1&retry_interval=15 => tcp://<elasticache-endpoint>:11211?persistent=1&weight=1&timeout=1&retry_interval=15
I can telnet from the box to the end point & port and connect properly, so the instance is able to connect to the memcached server.
Things that we have tried:
Regardless of what we've tried, sessions are stored on disk to /var/lib/php/sessions. Is there something I'm missing, or is this a known 5.4 or AWS issue?
OK, we managed to figure out the issue.
First, we created a simple page that spit out phpinfo(). Note that it is important that you run this thru the web server - running php -i DOES NOT include any overrides that apache may add.
Under the session section, the output lists all the directives, and a "Local Value" and a "Master Value".
The local values had:
session.save_handler files
session.save_path /var/lib/php/session
while the master values had:
session.save_handler memcache
session.save_path tcp://<endpoint>:11211
It turns out that there's an override installed by default in /etc/httpd/conf.d/php.conf that specifies the files. This appears to be a Redhat/CentOS/Fedora thing.
Removing those values from php.conf fixed the problem.
Collected from the Internet
Please contact [email protected] to delete if infringement.
Comments