Continuous Backup

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All Cassandra cluster data is backed up by default every 24 hours and depending on your use case and criticality of the data stored in your clusters, if you require a more frequent backup strategy, Continuous Backup can optionally be enabled. Continuous Backup for a cluster:

  • Increases the frequency of snapshot backups to once every 3 hours
  • Starts backing up commit log once every 5 minutes. As each node rotates its commit logs, it will archive the log and schedule it to be copied to cloud storage. Once copied to the cloud storage, the backup service removes the archives on the node.

Increased frequency of snapshot backups combined with commit log backups provide:

  • Reduced window of potential data loss (i.e. a lower restore point objective)
  • Selective restores of specific tables

Like Snapshot Backup, node snapshot timing under Continuous Backup is staggered to reduce the impact of backup operations on the overall cluster performance.

Continuous Backup is enabled by selecting the Continuous Backup option when creating the cluster: 

Continuous Backup can also be selected when adding a new cluster data center to an existing cluster.

If you would like to enable Continuous Backup on an existing cluster, please contact our support team.

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