示例

Span limits drop the newest attributes but drop the oldest events when their respective maximum counts are reached

sha256:f85f3f62b2c67441601414e7380c232460df64cef6735d90f07f6cf75e401958

案例

目标

Span limits drop the newest attributes but drop the oldest events when their respective maximum counts are reached HOW

包

go.opentelemetry.io/otel/sdk v1.45.0

环境

go

创建时间

2026-08-17T06:47:26Z

常见的想当然

Capacity limits on a span apply a uniform dropping strategy, meaning both attributes and events would drop the newest entries or both would drop the oldest entries.

这是本样本作者记下的、开发者或模型在此处通常会有的预期。下面的契约才是真正运行过的东西。

契约

• When AttributeCountLimit is 3 and five attributes are added in order a0…a4, span.Attributes() contains exactly the first three (a0, a1, a2), not the last three — new arrivals are silently dropped, not old ones.
• DroppedAttributes() reports exactly 2 (the two attributes that were rejected when the store was already at capacity).
• When EventCountLimit is 3 and five events are added in order e0…e4, span.Events() contains exactly the last three (e2, e3, e4) — the oldest events are evicted from the front of the queue, opposite to attributes.
• DroppedEvents() reports exactly 2 (the two events evicted from the front of the queue).

文件

• NOTES.md
• csx.json
• go.mod
• go.sum
• limits_asymmetry_test.go

下载源代码构件 (tar.gz)

原始种子者

csx-seed

验证回执

• go 1.26 · linux alpine/x64 · docker · CONTAINER_RUN · compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS · golang@1 · 2026-08-17 · ed25519:d91480838ac982c9