Cluster Replication

This section describes the cluster configuration and replication behaviour of the a9s MongoDB Data Service.

Replication

The a9s MongoDB cluster is configured as a Replica-Set. There is one Primary Node that distributes the data asynchronically to the two secondary nodes. The secondary nodes are only available for read-operations and the data needs to be written to the primary node.

The a9s MongoDB Data Service is a non-sharded cluster. The complete data is written to all nodes of the cluster to ensure redundancy and prevent data loss if one node becomes unavailable.

For more information about the replication, see the MongoDB replication documentation.