My boss recently asserted, in conversation, that Redis supports some configuration options for controlling maximum key or key/value sizes ... so we could set some option to prevent our applications from creating keys or key/value pairs larger than, say, 50KB.
My impression is that no such option exists and that we'd have to patch the sources and build our own to add such feature. (For this question forcing the applications programmers to mediate all access through Lua scripts or through something like twemproxy would NOT be an option).
Did I miss something in the Redis: Documentation somewhere?
Also what are the best practices for failover these days? Is Redis Sentinel ready for prime time? Is the Linux-HA OCF Heartbeat/Pacemaker/Cluster Glue trio still the best for this?