CODEWITHSUNDEEP
redislru
Eyal leshem
Eyal leshem

Reputation: 1115

Is it possible to define LRU Redis that will apply only of part of the keys

I currently i used the same redis instance to save 2 types of informations:

  1. That contain cache data that can be evicted when i want to free memory (for this data i want to use an LRU , as it's can grow to very large number of records).
  2. Information that can't be deleted randomly - and should be cleanup by explicit delete command from the app.

My question is if there is a way to separate between those 2 kinds of data in a manner that enable to define LRU only on the data of type 1 , but not on the data of type 2.

Upvotes: 2

Views: 1366

Answers (1)

for_stack
for_stack

Reputation: 23041

For the first type of data, you can set a timeout i.e. TTL, for each key (with EXPIRE, EXPIREAT, or SET command), and for the second type of data, set no timeout. Then you can config your Redis server to set maxmemory-policy as volatile-lru.

With this setting, only the first type of data will be evicted with LRU algorithm.

Upvotes: 2

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