Show server stats and details.
stats array will contain information about the server.
aof_size: The size in bytes of the aof on disk.
avg_item_size: An estimated size in bytes of each object.
caught_up: When in follow mode, this indicates if the server has the same data as the leader.
following: When in follow mode, this is the address of the leader.
heap_size: The bytes size of the heap. Usually equivalent to mem_alloc.
id: A unique identifier for the server. This is auto-generated once when the server first starts up.
in_memory_size: The estimated memory size in bytes that the key is using.
mem_alloc: The actual amount of memory in bytes that the server is using.
num_collections: The key count.
num_objects: The object count.
num_points: The total number of latitude, longitude coordinates in the key. This will always be equal to or greater than num_objects.
pointer_size: The size in bytes of an underlying pointer. May be used to provide a hint if the server is in 32-bit or 64-bit mode.
read_only: Is true when the server is in readonly mode.