I want to get a randomly specified number of elements from the result returned by the Keys command, what command should I use?

[fcgxz2003]

Keys command needs to traverse the entire redis, can it traverse the specified number and return?

[elena-kolevska]

Hi @fcgxz2003 . KEYS goes through the whole keyspace on the server side. We can't control it on the client. It's also important to note that it is a blocking command, meaning no other requests can be served while KEYS is running.

From the docs:
"Warning: consider KEYS as a command that should only be used in production environments with extreme care. It may ruin performance when it is executed against large databases. This command is intended for debugging and special operations, such as changing your keyspace layout. Don't use KEYS in your regular application code. If you're looking for a way to find keys in a subset of your keyspace, consider using SCAN or sets."

I would suggest looking into the SCAN command.