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Session Handler vs Session Cache

Picture of Andrew Bredhauer
Session Handler vs Session Cache


We're currently setting up a moodle cluster and are a little confused over the difference (or not) between session handling and the session cache. Are these things one and the same or are they different? Do they both need to be shared by the servers in the cluster or just one?

The docs about this are very confusing. We're looking at using Redis and already have a shared application cache in place. We were using a load balancer with sticky sessions which meant we could operate without worrying about the shared session handling but now need to change that config.


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