Also, added closing of persistence and mem storage. Change-Id: Iacf0d22c3520dd2584d9546984c1f8a5ed6cd54e
Change-Id: I584144ceeeedafdb114266d8a6d2513e67b1d010
This reintroduces a LevelDB-based metrics index. Change-Id: I4111540301c52255a07b2f570761707a32f72c05