I am getting higher execution time around 10 sec when running query with mmapfs index having 2 TB size.
But the same query with another index 2 TB store type niofs executes it within 1 second.
Is single large single index of store type mmap is a problem?
FYI, I am having 64-bit unix machine with high vm.max_map_count and 10 nodes 200 GB RAM allocated to ES across nodes.