Competing Consumers / Ordering

Kind: tension

Record: tension:competing-consumers-ordering

Canonical: Schema

"competing-consumers" (execution-core layer) is traded against "Ordering" (causality-core layer) — a principle cannot be scope-separated from a quality, metric, or cost it competes with; resolve by measuring "Ordering" and choosing an explicit operating point.

Listed in Tensions, after Idempotent Consumer / State Overhead and before Defensive Programming / Verbosity.

In tension with

• Competing Consumers
• Ordering

Mechanism

• irreducible-tradeoff

Linked from

• Event / Messaging / Asynchronous Architecture
• Resolution mechanisms