5.3.4 Server Status Output MongoDB Documentation, Release 3.0.4 • The limit() method • The batchSize() method Note: When MongoDB writes query profile information to the log, the responseLength (page 295) value is in a field named reslen . The time in milliseconds from the perspective of the mongod from the beginning of the operation to the end of the operation. Changed in version 3.0. A document that contains the execution statistics of the query operation. For other operations, the value is an empty document. The system.profile.execStats (page 296) presents the statistics as a tree; each node provides the statistics for the operation executed during that stage of the query operation. Note: The following fields list for execStats (page 296) is not meant to be exhaustive as the returned fields vary per stage. New in version 3.0: stage (page 296) replaces the type field. The descriptive name for the operation performed as part of the query execution; e.g. New in version 3.0: inputStages (page 296) replaces the children field. An array that contains statistics for the operations that are the input stages of the current stage. The timestamp of the operation. The IP address or hostname of the client connection where the operation originates. For some operations, such as db.eval() , the client is 0.0.0.0:0 instead of an actual client. An array of authenticated user information (user name and database) for the session. See also Client Authenti- cation (page 323). The authenticated user who ran the operation. If the operation was not run by an authenticated user, this field’s value is an empty string. This document provides a quick overview and example of the serverStatus command. The helper db.serverStatus() in the mongo shell provides access to this output. For full documentation of the content of this output, see http://docs.mongodb.org/manual/reference/command/serverStatus . • COLLSCAN for a collection scan • IXSCAN for scanning index keys • FETCH for retrieving documents system.profile.execStats. inputStages system.profile. ts system.profile. client system.profile. allUsers system.profile.execStats. stage system.profile. execStats system.profile. millis system.profile. user Chapter 5. Administration 296