Properties
| Name | Type | Description |
|---|---|---|
| customZoneMapping | object | List that contains comma-separated key value pairs to map zones to geographic regions. These pairs map an ISO 3166-1a2 location code, with an ISO 3166-2 subdivision code when possible, to a unique 24- |
| managedNamespaces | array | List that contains a namespace for a Global Cluster. MongoDB Cloud manages this cluster. |
| selfManagedSharding | boolean | Boolean that controls which management mode the Global Cluster is operating under. If this parameter is true Self-Managed Sharding is enabled and users are in control of the zone sharding within the G |
JSON Schema
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"$id": "https://raw.githubusercontent.com/api-evangelist/mongodb/main/json-schema/mongodb-geo-sharding20240805-schema.json",
"title": "GeoSharding20240805",
"x-generated": "2026-10-03",
"x-method": "derived",
"x-generator": "derive-json-schema.py",
"x-source": "openapi/mongodb-global-clusters-api-openapi.yml#/components/schemas/GeoSharding20240805",
"properties": {
"customZoneMapping": {
"additionalProperties": {
"description": "List that contains comma-separated key value pairs to map zones to geographic regions. These pairs map an ISO 3166-1a2 location code, with an ISO 3166-2 subdivision code when possible, to a unique 24-hexadecimal string that identifies the custom zone.\n\n The 24-hexadecimal string corresponds to a `Replication Specifications` `zoneId` property.\n\nThis parameter returns an empty object if no custom zones exist.\n\nExample: `{\"US-VA\": \"6716c5a804f4ce77e899bf99\", \"DE\": \"6716c5a804f4ce77e899bf9a\"}`.",
"pattern": "^([a-f0-9]{24})$",
"readOnly": true,
"type": "string"
},
"description": "List that contains comma-separated key value pairs to map zones to geographic regions. These pairs map an ISO 3166-1a2 location code, with an ISO 3166-2 subdivision code when possible, to a unique 24-hexadecimal string that identifies the custom zone.\n\n The 24-hexadecimal string corresponds to a `Replication Specifications` `zoneId` property.\n\nThis parameter returns an empty object if no custom zones exist.\n\nExample: `{\"US-VA\": \"6716c5a804f4ce77e899bf99\", \"DE\": \"6716c5a804f4ce77e899bf9a\"}`.",
"readOnly": true,
"type": "object"
},
"managedNamespaces": {
"description": "List that contains a namespace for a Global Cluster. MongoDB Cloud manages this cluster.",
"items": {
"$ref": "#/$defs/ManagedNamespaces"
},
"readOnly": true,
"type": "array"
},
"selfManagedSharding": {
"description": "Boolean that controls which management mode the Global Cluster is operating under. If this parameter is true Self-Managed Sharding is enabled and users are in control of the zone sharding within the Global Cluster. If this parameter is false Atlas-Managed Sharding is enabled and Atlas is control of zone sharding within the Global Cluster.",
"readOnly": true,
"type": "boolean"
}
},
"type": "object",
"$defs": {
"ManagedNamespaces": {
"properties": {
"collection": {
"description": "Human-readable label of the collection to manage for this Global Cluster.",
"type": "string"
},
"customShardKey": {
"description": "Database parameter used to divide the *collection* into shards. Global clusters require a compound shard key. This compound shard key combines the location parameter and the user-selected custom key.",
"type": "string"
},
"db": {
"description": "Human-readable label of the database to manage for this Global Cluster.",
"type": "string"
},
"isCustomShardKeyHashed": {
"default": false,
"description": "Flag that indicates whether someone hashed the custom shard key for the specified collection. If you set this value to `false`, MongoDB Cloud uses ranged sharding.",
"type": "boolean"
},
"isShardKeyUnique": {
"default": false,
"description": "Flag that indicates whether someone [hashed](https://www.mongodb.com/docs/manual/reference/method/sh.shardCollection/#hashed-shard-keys) the custom shard key. If this parameter returns `false`, this cluster uses [ranged sharding](https://www.mongodb.com/docs/manual/core/ranged-sharding/).",
"type": "boolean"
},
"numInitialChunks": {
"description": "Minimum number of chunks to create initially when sharding an empty collection with a [hashed shard key](https://www.mongodb.com/docs/manual/core/hashed-sharding/).",
"format": "int64",
"maximum": 8192,
"type": "integer"
},
"presplitHashedZones": {
"default": false,
"description": "Flag that indicates whether MongoDB Cloud should create and distribute initial chunks for an empty or non-existing collection. MongoDB Cloud distributes data based on the defined zones and zone ranges for the collection.",
"type": "boolean"
}
},
"required": [
"collection",
"customShardKey",
"db"
],
"type": "object"
}
}
}
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