Redis users getting deleted automatically

i have a redis instance which is installed as a linux service.

I have created few users with some RBAC policies.

Everything works fine as expected for few days, but suddenly all my newly created users get deleted due to which my application connecting to redis is throwing exception. Also, no other person can access this server except me.

Can someone help开发者_如何学Python me how to persist the newly created users in redis for lifetime?