Regular mongod and mongos behavior is unchanged; only embedded router mongod behavior changes, in the following way:

The $currentOp aggregation stage will now only display operations according to the port on which the request was made.

• When currentOps are requested on the router port and {localOps: true}

  is set, only router operations are reported.

• When currentOps are requested on the router port without {localOps: true}

  , only shard operations are reported.

• When currentOps are requested on the shard port, only shard operations are reported.

  Description of Linked Ticket

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