analytics_heavy vulnerable to cross_shard_query

analytics heavyVulnerable Tocross shard query degradation

Source: Workload·Target: Failure Mode

Summary

Analytics-heavy workloads that require aggregate queries across all shards are particularly vulnerable to cross-shard query degradation as shard count grows.

Evidence

·cross_shard_query_degradation's primary trigger is analytics/reporting queries without a shard-key predicate (failure_modes/cross_shard_query_degradation.yaml)
·analytics_heavy scans gigabytes per query for aggregations/joins and recommends sharding, creating the fan-out layout (workloads/analytics_heavy.yaml)

Evidence grounding

Grounded, 2 supporting items

Analytics aggregate/scan queries omit any single shard key - the scatter-gather fan-out trigger.