Administration Commands
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isMaster
For isMaster command, the
response always contains a document in which isMaster: true. It
also includes operational parameters.
Atlas Data Federation supports the optional saslSupportedMechs field set to the <db.user>.
Note
About the hello Command
Atlas Data Federation also supports the hello command, which is an alias for
the isMaster command. The hello command returns a document
that is identical to the document returned by the isMaster
command. In the document returned by the hello command, the
isWritablePrimary field is set to true instead of the
isMaster field. We recommend the hello command instead of
isMaster.
killCursors
The killCursors command kills the specified cursor or cursors for a collection.
listCollections
The listCollections command retrieves information about the collections in a database, such as collection names and options. The response contains information that can be used to create a cursor to the collection information. Results are ordered alphabetically by collection name.
Atlas Data Federation supports the following options:
filter(Exact match only.)nameOnlyauthorizedCollections
listDatabases
The listDatabases command
provides a list of all existing databases in alphabetical order. You must use the admin
database to run the listDatabases command.
The following options are supported:
filter(Exact match only.)nameOnlyauthorizedDatabases
The listDatabases command always returns sizeOnDisk: 0 and
empty: false so it can return quickly, without scanning all the
files in the S3 buckets.