Unsupported Commands in `M10+` Clusters¶

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Limited Commands

Unsupported Commands
Administrative
Sessions
Replication
Sharding
User and Role Management
Aggregation Pipeline
MongoDB 4.2+ Incompatibility
Contact Support

Atlas requires clients to authenticate to access an Atlas cluster. Atlas provides a curated list of Database User Privileges. These privileges provide access to a subset of MongoDB commands.

Limited Commands¶

Atlas limits the db.killOp() method to the MongoDB user who ran the operation.

Unsupported Commands¶

The following table lists the most common commands and shell methods that database user privileges do not support. To ensure cluster stability and performance, Atlas subsumes or restricts the functionality that these commands provide.

Administrative¶

Commands	Shell Method	Privilege Actions
`setParameter`	`db.setLogLevel()` Others that use `setParameter`.	`setParameter`
`logRotate`		`logRotate`
`shutdown`	`db.shutdownServer()`	`shutdown`
`eval`	`db.eval()`
`fsync`	`db.fsyncLock()`	`fsync`
`setFeatureCompatibilityVersion`

Sessions¶

Commands	Shell Method	Privilege Actions
`killAllSessions`		`killAnySession`

Replication¶

Commands	Shell Method	Privilege Actions
`applyOps`		`forceUUID`
`replSetFreeze`	`rs.freeze()`	`replSetStateChange`
`replSetInitiate`	`rs.initiate()`
`replSetMaintenance`		`replSetStateChange`
`replSetReconfig`	`rs.reconfig()`
`replSetResizeOplog`
`replSetStepDown`	`rs.stepDown()`	`replSetStateChange`
`replSetSyncFrom`	`rs.syncFrom()`	`replSetStateChange`
`resync`		`resync`

Sharding¶

Commands	Shell Method	Privilege Actions
	`sh.disableBalancing()`
	`sh.enableBalancing()`
`removeShard`		`removeShard`
`refineCollectionShardKey` [1]		`refineCollectionShardKey`

[1]	This command is not supported on global write clusters only.

User and Role Management¶

Note

As an alternative, see the available Atlas User Roles.

Commands	Shell Method	Privilege Actions
`createUser`	`db.createUser()`	`createUser`
`getUser` [2]	`db.getUser()` and `db.getUsers()` [2]
`dropUser`	`db.dropUser()`	`dropUser`
`grantRolesToUser`	`db.grantRolesToUser()`	`grantRole`
`revokeRolesFromUser`	`db.revokeRolesFromUser()`	`revokeRole`
`updateUser`	`db.updateUser()`
`createRole`	`db.createRole()`	`createRole`
`dropRole`	`db.dropRole()`	`dropRole`
`updateRole`	`db.updateRole()`

[2]	(1, 2) You can call `getUser` for your own user account.

Aggregation Pipeline¶

Atlas doesn't support the $planCacheStats aggregation pipeline stage.

MongoDB 4.2+ Incompatibility¶

MongoDB versions 4.2 and later do not support the following commands and methods:

Commands	Shell Method
`parallelCollectionScan`
`clone`	`db.cloneDatabase()`
`copydb`	`db.copyDatabase()`

Contact Support¶

Please contact Atlas support if your use case requires access to a command not currently supported by the existing Atlas database user privileges.

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