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memoryredisredis-server

Check size of all keys in bytes in redis server

How to check memory used by all the keys in redis-server.

I have started redis-server with appendonly yes option. To check size of an individual key I am using following commands-

127.0.0.1:6379> set foo bar
OK
127.0.0.1:6379> memory usage foo
(integer) 50

How do I get memory usage of all the existing keys in redis

Solution

  • You can find this information using the following command:

     INFO memory

    This will return detailed information about the memory usage and you can find the value:

    • used_memory_dataset: The size in bytes of the dataset

    You also have interesting values using the MEMORY STATS command, including the one describe above dataset.bytes and the total number of keys keys.count.

    Also and probably my favorite approach, when I work with Redis I am using Redis Insight to look at all the metrics during development.

    Regards

    Tug