update compression block size to 2 MB
update compression block size to 2 MB

cmusatyalab/elijah-provisioning,cmusatyalab/elijah-provisioning,OpenEdgeComputing/elijah-provisioning,cmusatyalab/elijah-provisioning,OpenEdgeComputing/elijah-provisioning,cmusatyalab/elijah-provisioning,OpenEdgeComputing/elijah-provisioning,cmusatyalab/elijah-provisioning,OpenEdgeComputing/elijah-provisioning,OpenEdgeComputing/elijah-provisioning,OpenEdgeComputing/elijah-provisioning,cmusatyalab/elijah-provisioning