Docs Menu
Docs Home
/
MongoDB Manual
/ / /

sh.isBalancerRunning()

On this page

  • Definition
  • Compatibility
  • Output Document
sh.isBalancerRunning()

Returns a document describing the status of the balancer.

Important

mongosh Method

This page documents a mongosh method. This is not the documentation for database commands or language-specific drivers, such as Node.js.

For the database command, see the balancerStatus command.

For MongoDB API drivers, refer to the language-specific MongoDB driver documentation.

This method is available in deployments hosted in the following environments:

  • MongoDB Atlas: The fully managed service for MongoDB deployments in the cloud

Important

This command is not supported in M0, M2, and M5 clusters. For more information, see Unsupported Commands.

The following is an example of a document returned by the command:

{
mode: 'full',
inBalancerRound: false,
numBalancerRounds: Long("1143"),
ok: 1,
'$clusterTime': {
clusterTime: Timestamp({ t: 1639753724, i: 3 }),
signature: {
hash: Binary(Buffer.from("0000000000000000000000000000000000000000", "hex"), 0),
keyId: Long("0")
}
},
operationTime: Timestamp({ t: 1639753724, i: 3 })
}
Field
Description
mode

String that specifies whether the balancer thread is running or stopped. Possible values are:

  • "full"
    Balancer thread is running but not necessarily in a balancing round.
  • "off"
    Balancer thread is stopped. Chunk balancing cannot occur in this mode.
inBalancerRound
Boolean that specifies if the balancer is currently in a balancing round.
numBalancerRounds
Number of balancer rounds which have occurred since the config servers were started. This value is reset to 0 when the config servers are restarted.
ok
$clusterTime
operationTime

Tip

See also:

Back

sh.help