'Is it recommended to put a max TTL in every key even if it has no TTL for server-side caching?
Redis server-assisted client side caching official page says:
Putting a max TTL in every key is a good idea, even if it had no TTL. This is a good protection against bugs or connection issues that would make the client having old data in the local copy.
...but Redis documentation does not say whether it is a good practice to always set at least a max TTL for server-side caching.
Is it a bad practice to do not set a TTL at all?
For example, I cache some data for a long time and I am fine to set expire=None for it because the data changes rarely.
At the same time, I am afraid that I will do some code changes and I will forget to clean up absolute key/value. As I understand, that absolute data may stay forever in Redis only wasting space.
Is it a good practice to always set at least a huge TTL (e.g. 1 year) to stay safe?
Sources
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Source: Stack Overflow
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