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Deploy MongoDB Resources on Multiple Kubernetes Clusters

Multi-Cluster Sharded Cluster

The multi-cluster sharded cluster deployment topology is currently in public preview. Multi-cluster sharded cluster deployments are not recommended for use in production environments, as there may be breaking changes in the functionality before this features becomes generally available and supported for production use. Moreover, during the public preview we are unable to provide support for this specific deployment topology without prior commitment from the product and engineering teams responsible for this feature.

Important

The multi-cluster sharded cluster functionality makes it possible to deploy MongoDB resources across multiple Kubernetes clusters in multiple geographic regions; however, doing so will likely increase latency for replication operations.

If you are interested in discussing the public preview of multi-cluster sharded cluster deployments, or have any feedback on the feature, please contact your MongoDB account team.

The scope of the public preview release of the multi-cluster sharded cluster feature includes the following:

  • Implement multi-cluster sharded cluster deployment capabilities by defining a MongoDB custom resource as having a spec.topology value of MultiCluster, and a spec.type value of ShardedCluster.

  • Introduce the ability to override any settings for a particular shard via the new spec.shard.shardOverrides field.

  • Ensure backwards compatibility for existing single-cluster MongoDB sharded cluster deployments.

To learn more about the specific configuration options for the multi-cluster sharded cluster topology, please see the sharded cluster reference documentation.

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Connect to Multi-Cluster Resource from Outside Kubernetes