MongoDB Documentation, Release 3.0.4 "w" : NumberLong(<num>), "R" : NumberLong(<num>), "W" : NumberLong(<num>) }, "timeAcquiringMicros" : { "r" : NumberLong(<num>), "w" : NumberLong(<num>), "R" : NumberLong(<num>), "W" : NumberLong(<num>) }, "deadlockCount" : { "r" : NumberLong(<num>), "w" : NumberLong(<num>), "R" : NumberLong(<num>), "W" : NumberLong(<num>) } }, "MMAPV1Journal" : { "acquireCount" : { "r" : NumberLong(<num>), "w" : NumberLong(<num>), "R" : NumberLong(<num>), "W" : NumberLong(<num>) }, "acquireWaitCount" : { "r" : NumberLong(<num>), "w" : NumberLong(<num>), "R" : NumberLong(<num>), "W" : NumberLong(<num>) }, "timeAcquiringMicros" : { "r" : NumberLong(<num>), "w" : NumberLong(<num>), "R" : NumberLong(<num>), "W" : NumberLong(<num>) }, "deadlockCount" : { "r" : NumberLong(<num>), "w" : NumberLong(<num>), "R" : NumberLong(<num>), "W" : NumberLong(<num>) } }, "Database" : { "acquireCount" : { "r" : NumberLong(<num>), "w" : NumberLong(<num>), "R" : NumberLong(<num>), "W" : NumberLong(<num>) }, "acquireWaitCount" : { "r" : NumberLong(<num>), "w" : NumberLong(<num>), "R" : NumberLong(<num>), "W" : NumberLong(<num>) }, "timeAcquiringMicros" : { "r" : NumberLong(<num>), 299 5.3. Administration Reference