The emptycapped command removes all documents from a capped collection. Use the following syntax:

{ emptycapped: "events" }

This command removes all records from the capped collection named events.


This command obtains a write lock on the affected database and will block other operations until it has completed.


emptycapped is an internal command that is not enabled by default. emptycapped must be enabled by using --setParameter enableTestCommands=1 on the mongod command line. emptycapped cannot be enabled during run-time.

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