DocumentDB

Makes easy to set-up, operate and scale MongoDB compatible databases
- Basically it is like running MongoDB in AWS.
Launched as instances in a cluster.
- Supports instance-based clusters and elastic clusters.
It automatically grows the size of your storage volumes as your database increases.
You can increase read throughput for higher requests volume by creating more instance replicas in the cluster.
- You can also scale compute and memory of the replicas up and down .
It runs on a VPC to isolate the database.
Automatically monitors the health of the cluster, replacing failing instances.
- Automatic failover of instances.
Automatic, incremental and continuous backups, to S3.
- Backup capabilities allows you to restore your cluster to any second during your retention period, up to the last 5 minutes. (Retention period up to 35 days)
- Backups have zero impact on cluster performance.
You can encrypt your databases with KMS.
Cluster volume is replicated to three different AZs.

Clusters

Consists of 0 to 16 instances, and a cluster storage volume that manages the data for those instances.

All writes are done through the primary instance. (Meaning the other instances are read-only)

Last updated 19 days ago