opentelemetry-python教程
时间: 2024-11-05 08:11:16 浏览: 28
OpenTelemetry Python是一个用于收集、传输和可视化应用性能数据的开源库,它基于OTLP协议。以下是简单的Opentelemetry Python教程概述:
1. **安装**:首先需要安装opentelemetry SDK和各种处理器(例如 Jaeger、Zipkin等)。你可以通过pip安装:
```
pip install opentelemetry-api opentelemetry-sdk opentelemetry-exporter-jaeger
```
2. **创建追踪**:在Python代码中,使用`span`来创建一个新的追踪资源:
```python
from opentelemetry import trace
from opentelemetry.sdk.trace import TracerProvider
tracer_provider = TracerProvider()
trace.set_tracer_provider(tracer_provider)
tracer = tracer_provider.get_tracer(__name__)
with tracer.start_as_current_span("my_operation"):
# 你的业务代码...
```
3. **添加事件和标签**:可以在`start_as_current_span`内部添加事件和标签,以提供更详细的上下文信息:
```python
span.set_attribute("key", "value")
span.add_event(name="event_name", attributes={"another_key": "another_value"})
```
4. **导出数据**:配置一个出口(exporter),如Jaeger,将数据发送到监控系统:
```python
exporter = jaeger_exporter.JaegerExporter(
service_name="your_service",
agent_host_port="localhost:6831"
)
instrumentations = [jaeger_instrumentation.JaegerInstrumentor()]
tracer_provider.add_span_processor(exporter.exporter)
for instrumentation in instrumentations:
instrumentation.instrument()
```
5. **测试和调试**:使用OpenTelemetry的工具(如opentelemetry-collector)检查数据是否正确记录和发送。
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