How to solve the memcache usage environment

For more information about the use environment of memcache, see some scenarios of memcache. For more information about the data used in apsaradb for redis, see what data is used to facilitate the use of apsaradb for memcache environments.
I would like to ask some usage scenarios of memcache and what data is used


In other words, redis also asked which data is convenient to use redis memcache:
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It is generally applicable to systems with a data volume of more than 100,000.
As for what data to use, you need to check what data cache you need.
The difference between memcache and redis lies in persistence.
So if you use redis, it depends on whether your business needs a longer data storage period?