sh.isConfigShardEnabled()

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Definition
Syntax
Behavior
Example

Definition

sh.isConfigShardEnabled()

The sh.isConfigShardEnabled() method returns whether a cluster has a config shard. If it does, then sh.isConfigShardEnabled() also returns the config shard's host and tag information.

Syntax

sh.isConfigShardEnabled() has the following syntax:

sh.isConfigShardEnabled()

Behavior

sh.isConfigShardEnabled() returns a document that contains the following fields:

{
   enabled: <boolean>,
   host: <string>,
   tags: [<string>]
}

Field	Type	Description
`enabled`	boolean	`true` if the cluster has a config shard, `false` if it does not.
`host`	string	Hostname of config shard. Only present if `enabled` is `true`.
`tags`	array of strings	List of zones to which the shard belongs.

Example

The following example shows how to run sh.isConfigShardEnabled(). It shows the output when you run the method on a cluster that has a config shard, but this shard does not have any associated tags:

sh.isConfigShardEnabled()

{ enabled: true, host: 'shard3/localhost:27017' }

The following example shows the output if you run sh.isConfigShardEnabled() on a cluster that has a config shard with associated tags:

{
  enabled: true,
  host: 'shard3/localhost:27017',
  tags: ['tag1', 'tag2']
}

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sh.listShards