Redis questions

I tried plugin messaging to manage data over my network. After finishing it up I noticed plugin messaging is broken in 1.13+. Thanks Mojang...

I now decided using Redis is a better idea. I will be hosting several game servers and one lobby server.

Here are my current questions

1. What is a redis.clients.jedis.JedisPool and how does it differ from redis.clients.jedis.Jedis?
   
2. When the Redis server restarts, is the data still there? A: No, its just for...

Redis questions