How to copy a large redis key and values?

@domenico 

To copy a large Redis key and its associated values, you can use the Redis command "MIGRATE". Here's a step-by-step guide on how to do it:

1. Connect to the source Redis server using the redis-cli tool:

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redis-cli -h <source_redis_host> -p <source_redis_port>

1. Use the following MIGRATE command to copy the key and values to the destination Redis server:

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MIGRATE <destination_redis_host> <destination_redis_port> <key_to_copy> 0 0

Replace <destination_redis_host>, <destination_redis_port>, and <key_to_copy> with the appropriate values. The 0 0 at the end of the command specifies the database number and the timeout for the operation, respectively.

1. Check the destination Redis server to ensure that the key and values have been successfully copied.

Note: The MIGRATE command can be used to copy keys between Redis servers within the same network. If you need to copy keys between Redis servers in different networks, you may need to set up a secure tunnel or use other methods like exporting/importing the data using Redis dump and restore commands.