So, I have shifted all my sites to Redis cache and after some initial issues now it is working perfectly but I have 2 small Issues.
Redis is using 100% of my 512MB ram. I know that there is the max-memory setting for Redis but i don’t know how much max-memory should I allocate to Redis. I am running few wordpress sites with less than thousand pageviews (Combined all sites).
Redis do not start automatically after re starting the server until i give redis-server command. so sites remain down till then. Any way to make it start at boot.