To Nha Notes | May 18, 2021, 3:46 p.m.
https://aws.amazon.com/blogs/database/monitoring-best-practices-with-amazon-elasticache-for-redis-using-amazon-cloudwatch/
https://docs.aws.amazon.com/AmazonElastiCache/latest/red-ug/CacheMetrics.WhichShouldIMonitor.html#metrics-engine-cpu-utilization
https://redis.io/topics/rediscli#monitoring-the-latency-of-redis-instances
https://redis.io/commands/slowlog