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    Opentelemetry——Signals-Logs

    A log is a timestamped text record, either structured (recommended) or unstructured, with metadata. Of all telemetry signals, logs have the biggest legacy. Most programming languages have built-in logging capabilities or well-known, widely used logging libraries. Although logs are an independent data source, they may also be attached to spans. In OpenTelemetry, any data that is not part of a distributed trace or a metric is a log. For example, events are a specific type of log. Logs often contain detailed debugging/diagnostic info, such as inputs to an operation, the result of the operation, and any supporting metadata for that operation. Log是带时间戳的文本记录,可以是结构化(推荐)或非结构化,带有元数据。在所有遥测信号中,Log具有最多的历史资产。大多数编程语言都具有内置的Log功能或知名的、被广泛使用的Log库。虽然Log是独立的数据源,但它们也可能附加到Span上。在 OpenTelemetry中,任何不属于分布式Trace或Metric的数据都是Log。例如,事件是一种特定类型的Log。Log通常包含详细的调试/诊断信息,例如操作的输入、操作的结果以及表达该操作的任何元数据。

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