ElastiCache waste check
ElastiCache Replication Waste
elasticache_replication_waste
What it finds
ElastiCache Replication Waste: one of the ElastiCache checks in the database optimization group. Checks in this group look for: database capacity that is idle, oversized for its load, kept past its useful life, or priced on a mode that does not fit how it is used.
Why it costs money
Managed databases bill for provisioned instances, storage and backups around the clock, so unused or oversized capacity is a standing cost.
How it is detected
Non-production cluster with unnecessary replicas
Detection confidence: HIGH. This is the criterion from our public docs. It runs in a local scan with your own read-only credentials.
Run it yourself
Nothing leaves your machine. The local scan has no telemetry.