• Contents
• Basics
• How can you list all keys?
• Why are you trying to dump the cache?
• My application requires it
• Why only RAM?
• Why no complex operations?
• Why is memcached not recommended for sessions? Everyone does it!
• What about the MySQL query cache?
• Is memcached atomic?
• Why is there a binary protocol?
• How do I troubleshoot client timeouts?
• Setup Questions
• How do I authenticate?
• How do you handle failover?
• How do you handle replication?
• Can you persist cache between restarts?
• Do clients and servers all need to talk to each other?
• Monitoring
• Why Isn't curr_items Decreasing When Items Expire?
• Use Cases
• When would you not want to use memcached?
• Why can't I use it as a database?
• Can using memcached make my application slower?
• Architectural
• Why can't we use memcached as a queue server?