You instrument your application so that trace data from different parts of the stack are sent to Tanzu Observability by Wavefront. Instrumentation enables you to trace a request from end to end across multiple distributed services, guided by key metrics from your application. After instrumentation, you can use our tracing UI to visualize a request as a trace that consists of a hierarchy of spans. This visualization helps you pinpoint where the request is spending most of its time and discover problems.
You instrument each microservice in your application with one or more Wavefront observability SDKs. This page:
- Helps you choose the SDK(s) or corresponding integration
- Directs you to the setup steps for each SDK or integration
Step 1. Prepare to Send Data
Choose one of the following ways to send metrics, histograms, and trace data from your application to the Wavefront service:
- Direct Ingestion. To get up and running quickly, use direct ingestion to send data directly to the Wavefront service.
- Wavefront proxy. For any production environment, we recommend a Wavefront proxy to forward data from your application to the Wavefront service. Using a proxy provides resilience to internet outages, control over data queuing and filtering, and more.
Watch this video for some background on proxy vs. direct ingestion.
To Prepare for Direct Ingestion
- Identify the URL of your Wavefront instance. This is the URL you use when you log in, typically something like
- Obtain an API token.
To Prepare for Using a Wavefront Proxy
- On the host that will run the proxy, install the proxy.
- If you want to use span logs, you need proxy version 5.0 or later.
- If you are using a Sender SDK to send data, you need proxy version 9.0 or later.
- On the proxy host, open the proxy configuration file
wavefront.conffor editing. The path to the file depends on the host OS.
- In the
wavefront.conffile, uncomment or define an HTTP listener port to send your metrics, histograms, and tracing spans.Note:
For proxy version before proxy 9.0, in the
wavefront.conffile, find and uncomment each listener port you want to enable. The following example enables the default/recommended listener ports for metrics, histogram distributions, and trace data:
From proxy version 9.0 onwards, you can send metrics and spans using the
pushListenerPorts=2878 ... histogramDistListenerPorts=2878 ... traceListenerPorts=2878
- For proxy version before proxy 9.0, in the
- Consider setting up trace sampling by configuring the proxy with a sampling strategy.
- Save the
- Start the proxy.
Step 2. Get Data Flowing
We support SDKs that implement the OpenTracing specification in many languages. You can use a Wavefront OpenTracing SDK to collect custom trace data that you define for your service, for example, to augment an auto-instrumented framework or to replace a 3rd party OpenTracing-compliant library.
You can use OpenTracing or OpenTelemetry (OpenTracing and OpenCensus have merged to form OpenTelemetry) to send traces to the Wavefront service.
Application or service names that have special characters are rejected and are not supported by the tracing user interfaces.Example:
Instrument Your Application with OpenTracing SDKs
Choose the Wavefront OpenTracing SDK for your microservice’s programming language, and click the link to go to its
README file on GitHub:
Instrument Your OpenTracing Java Application Without Writing Code
If you need application observability, but don’t want to instrument code for your Java microservices, use the Wavefront Java Tracing Agent. For more information, see this blog post on the Wavefront Java Tracing Agent.
Send Trace Data from Applications Integrated with Jaeger or Zipkin
If you have already instrumented your application with Jaeger or Zipkin follow these steps:
Collect traces and send them to the Wavefront service using the following integrations.
Optionally, add custom tags, applications names, or use an alternative for the Jaeger or Zipkin integration. See Using Jaeger or Zipkin with Tanzu Observability for details.
After your recompiled application starts running, start exploring your custom trace data on the Traces Browser and exploring the RED metrics and histograms that are automatically derived on the Service Dashboard from your trace data.
Instrument Your Application with Wavefront Sender SDKs
For maximum flexibility, you can use the Wavefront Sender SDKs. See Wavefront SDKs for Sending Raw Data for background.
When you use a Sender SDK, you won’t see span-level RED metrics by default. This section explains how to send span-level RED metrics using a custom tracing port.
- Prepare to send data via the Wavefront proxy.
Note: You need proxy version 9.0 or later.
- Configure your application to send data via the Wavefront proxy. See the SDK’s README file for details.
- Specify the port or a comma-separated list of ports that you want to send the trace data using the
customTracingListenerPortsconfiguration in your
## port for sending custom spans using the sender sdk ## you can use a port that you prefer. in this example port 30001 is used customTracingListenerPorts=30001
- When you configure the
wavefront senderon your application as explained in the SDK’s README file, define the port so that span level RED metrics will be gathered from your application.
Examine traces, spans, and RED metric sent by your application.