Each entry explains the waste, the billing model behind it, how to detect it and how to fix it.
114 inefficiencies
DatabricksCER-0332
When Delta Lake tables are partitioned by specific columns - such as date, region, or tenant identifier - the query engine can use partition pruning to limit data scans to only the relevant subset of files. However, when queries against...
MongoDB AtlasCER-0326
MongoDB Atlas offers two backup mechanisms for dedicated clusters: Cloud Backups (scheduled snapshots using the underlying cloud provider's native snapshot functionality) and Continuous Cloud Backup, which adds point-in-time recovery by...
AWS RDSCER-0323
Amazon RDS for SQL Server has traditionally used a License Included model where the SQL Server license cost is bundled into a single hourly instance price alongside Windows OS licensing, compute resources, and RDS management capabilities....
AWS RDSCER-0322
Amazon RDS for SQL Server uses a License Included pricing model where the hourly instance rate bundles Microsoft SQL Server licensing fees on a per-vCPU basis. When non-production workloads - such as development, testing, staging, QA, or...
AWS ElastiCacheCER-0321
Organizations deploy ElastiCache to reduce load on backend systems - databases, APIs, and compute layers - by serving frequently accessed data from fast in-memory storage. However, when Time-to-Live (TTL) values are misaligned with actual...
AWS RDSCER-0320
Amazon RDS for SQL Server uses a License Included pricing model where SQL Server and Windows OS licensing costs are bundled into the per-instance-hour rate - and those licensing costs scale directly with the number of vCPUs on the...
Azure Cache for RedisCER-0310
Azure Cache for Redis is billed at a fixed rate determined entirely by the provisioned tier and cache size - not by actual utilization. A cache instance that consumes only a fraction of its available memory and throughput incurs the same...
AWS RDSCER-0299
An RDS database instance is deleted but its manual snapshots or retained backups remain. Unlike automated backups tied to a live instance, these backups persist independently and continue generating storage costs despite no longer...
GCP BigQueryCER-0295
Analysts use SELECT * (reading more columns than needed) and/or rely on LIMIT as a cost-control mechanism. In BigQuery, projecting excess columns increases the amount of data read and can materially raise query cost, particularly on wide...
Azure SQL Managed InstanceCER-0288
Azure SQL Managed Instances remain on the original General Purpose architecture, or on the separate premium Business Critical tier when they do not need its capabilities (low-latency local SSD storage and a built-in read-only replica),...
AWS ElastiCacheCER-0284
ElastiCache clusters continue running engine versions that have moved into extended support. While the service remains functional, AWS charges an ongoing premium for extended support that provides no added performance or capability. These...
AWS AuroraCER-0293
Amazon Aurora database clusters are intentionally stopped to avoid compute costs but are automatically restarted by the service after the maximum allowed stop period. Once restarted, re-started database instances begin accruing...
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