Shulou(Shulou.com)06/01 Report--

{

Ts: Timestamp (1446011584, 2)

"h": NumberLong ("1687359108795812092")

"v": 2

"op": "I"

"ns": "test.nosql"

"o": {"_ id": ObjectId ("563062c0b085733f34ab4129"), "name": "mongodb", "score": "100"}

}

Ts: operation time, current timestamp + counter, counter is reset every second

H: globally unique identification of the operation

V:oplog version Information

Op: type of operation

I: insert operation

U: update operation

D: delete operation

C: execute commands (such as createDatabase,dropDatabase)

N: null operation, special purpose

Ns: the collection for which the operation is directed

O: operation content, if it is an update operation

O2: query condition for operation. Only the update operation contains this field.

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