Monitoring Cassandra cluster health
You can secure the good health of a Cassandra cluster by monitoring the node status in Pega Platform and by running regular repair operations.Regular cluster maintenance is important for Cassandra clusters that manage data with a specified time-to-live (TTL) expiration period. After data exceeds the TTL period, the Cassandra cluster marks the data with a tombstone. By running repair processes, you automatically remove the tombstone data.
- Performing regular monitoring activities on a Cassandra cluster
Verify that the Cassandra cluster is in good health by performing the recommended monitoring activities on a regular basis.
- Repairing and cleaning Cassandra nodes for data consistency
To guarantee data consistency and cluster-wide data health, run a Cassandra repair and cleanup regularly, even when all nodes in the services infrastructure are continuously available. Regular Cassandra repair operations are especially important when data is explicitly deleted or written with a TTL value.