How to get all cache keys from the memcached instance?

How can I get all the keys from a Memcached instance?

I am using Memcached-plus npm package, I can't able to get all the keys when I am using cachedump.I have referred some websites about the cachedump limitations.

so please refer any alternatives.I have to get all the keys from my Memcached server in my nodejs code.

via Ramyachinna