Dynamic Instrumentation is a feature of supporting Datadog tracing libraries. If you are already using APM to collect traces for your application, ensure your Agent and tracing library are on the required version, and go directly to enabling Dynamic Instrumentation in step 4.

Prerequisites

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Installation

1. Install or upgrade your Agent to version 7.45.0 or higher.

2. If you don’t already have APM enabled, in your Agent configuration, set the DD_APM_ENABLED environment variable to true and listening to the port 8126/TCP.

3. Install ddtrace, which provides both tracing and Dynamic Instrumentation:

   pip install ddtrace
   

   Note: Dynamic Instrumentation is available in the ddtrace library version 2.2.0 and higher.

4. Run your service with Dynamic Instrumentation enabled by setting the DD_DYNAMIC_INSTRUMENTATION_ENABLED environment variable to true. Specify DD_SERVICE, DD_ENV, and DD_VERSION Unified Service Tags so you can filter and group your probes and target active clients across these dimensions.

   Invoke your service:

   export DD_SERVICE=<YOUR_SERVICE>
   export DD_ENV=<YOUR_ENV>
   export DD_VERSION=<YOUR_VERSION>
   export DD_DYNAMIC_INSTRUMENTATION_ENABLED=true
   ddtrace-run python -m myapp.py
   

   from ddtrace.debugging import DynamicInstrumentation
   
   DynamicInstrumentation.enable()
   

5. After starting your service with Dynamic Instrumentation enabled, you can start using it on the APM > Dynamic Instrumentation page.

Configuration

Configure Dynamic Instrumentation using the following environment variables:

What to do next

See Dynamic Instrumentation for information about setting snapshot and metric probes and browsing and indexing the data.

Further Reading

Additional helpful documentation, links, and articles:

Getting Started with Datadog AgentDOCUMENTATION