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--- | ||
title: 信号 | ||
description: 了解 OpenTelemetry 支持的遥测类别 | ||
aliases: | ||
- /docs/concepts/data-sources | ||
- /docs/concepts/otel-concepts | ||
weight: 11 | ||
default_lang_commit: a0ac78ec4ec9c360ea8f86481cf01bf2b82140f1 | ||
--- | ||
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OpenTelemetry 的目的是收集、处理和导出**[信号][]**。 | ||
信号是系统输出,描述了操作系统和平台上运行的应用程序的底层活动。 | ||
信号可以是你希望在特定时间点测量的某项指标,如温度或内存使用率, | ||
也可以是贯穿分布式系统组件的事件,你希望对其进行跟踪。 | ||
你可以将不同的信号组合在一起,从不同角度观察同一技术的内部运作。 | ||
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目前,OpenTelemetry 支持以下类型的信号: | ||
- [追踪(Trace)](/docs/concepts/signals/traces) | ||
- [指标 (Metric)](/docs/concepts/signals/metrics) | ||
- [日志 (Log)](/docs/concepts/signals/logs) | ||
- [行李 (Baggage)](/docs/concepts/signals/baggage) | ||
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**事件**是一种特定类型的日志,而 | ||
[**profiles** 正在由 Profiling 工作组开发](https://github.com/open-telemetry/oteps/blob/main/text/profiles/0212-profiling-vision.md)。 | ||
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[信号]: /docs/specs/otel/glossary/#signals |