Memcached is a simple, highly scalable distributed memory key-based store developed by Danga Interactive to reduce the database load for LiveJournal, storing data and objects on the RAM memory instead of a disk. But nowadays, it is used by many other websites to speed up database-driven websites by caching objects in the memory to reduce read operations to an external data source.
If you are using memcached, you might have faced some of the following issues:
Cold cache: This happens when the memcached node goes down; then we can overload the database and slowdown or collapse data
Loss of performance: This happens when adding or removing memcached nodes
Lack of L1 cache: To overcome this, there are some memcached clients that can cache locally
Data loss: This happens due to server crash
Furthermore, cache entries are not relocated to a different node during a shutdown.
Clients of memcached can communicate with a running memcached server using a text-based protocol...