Redshift Clusters

Amazon Redshift clusters are a critical resource for big data analytics but can become a significant source of waste when underutilized, especially multi-node clusters with large instance types.

Implementation Effort: Medium - Estimated time: 2-4 hours. Verify no active queries or BI tool dependencies, take a snapshot, then pause or delete the cluster.

What We Detect

• Idle clusters -- Redshift clusters with no meaningful activity over an extended observation period, indicating they are not serving active workloads

We correlate multiple dimensions of cluster activity to ensure only truly idle clusters are flagged, minimizing false positives.

Recommendations

1. Verify no BI tools, ETL pipelines, or scheduled queries depend on the cluster
2. Take a snapshot for safety
3. Pause the cluster (to stop compute charges) or delete it entirely

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