Cloning cluster data 

Clone cluster data from one DSE cluster to another, or from a designated other location using the Restore Backup feature in OpsCenter.

The OpsCenter Backup Service provides methods of loading data backed up from one cluster in a different target cluster. The Backup Service can load backed up data automatically from backup locations that are accessible to both locations, such as when backing up to S3 or if a Local FS location path points to an NAS device shared by both clusters. The Backup Service can also detect and load backup data for non-centralized Local FS locations if the user copies the appropriate directories from the origin cluster to the target cluster.

There are a few workflows supported in OpsCenter for cloning cluster data:
  • Cloning from a defined Other Location allows cloning data from any previous snapshot that a cluster in an OpsCenter instance can access, regardless of the source of that snapshot. This workflow can be thought of as a pull process of cloning in that OpsCenter fetches what it needs from a location to clone the data. The location to clone from can be an Amazon S3 or a Local FS location. When cloning from a Local FS location, ensure that all files from the original backup are available at the specified path on the nodes of the target cluster.
  • Cloning a backup from one cluster to another cluster, both of which are managed within the same OpsCenter instance. This workflow can be thought of as a push process of cloning in that an OpsCenter instance pushes a backup it is aware of in one cluster to another cluster managed within that instance.
Note: Cloning encrypted tables to a different cluster does not work unless the encryption keys are identical, which is typically not the case.