This article explains why doubling the number of nodes in a Vertica enterprise cluster is the preferred method for expansion. It simplifies the rebalancing process and significantly reduces the time and complexity compared to partial scaling.
Environment
- Vertica Enterprise Cluster
- Cluster expansion scenarios
- Rebalancing operations
Situation
A customer is planning to expand their Vertica cluster and requested guidance on the optimal approach for adding nodes.
Cause
Vertica’s rebalancing process is more efficient when the number of nodes is doubled. Partial additions require more complex data redistribution, which increases rebalancing time and resource usage.
