https://github.com/monosoul/kotlin-coroutines-datadog-tracing

Repo to demonstrate the difference between tracing approaches
https://github.com/monosoul/kotlin-coroutines-datadog-tracing

Last synced: about 2 months ago
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Repo to demonstrate the difference between tracing approaches

• Host: GitHub
• URL: https://github.com/monosoul/kotlin-coroutines-datadog-tracing
• Owner: monosoul
• Created: 2023-03-27T11:40:42.000Z (over 1 year ago)
• Default Branch: main
• Last Pushed: 2023-03-27T14:10:26.000Z (over 1 year ago)
• Last Synced: 2023-08-02T22:07:48.531Z (over 1 year ago)
• Language: Kotlin
• Size: 147 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# kotlin-coroutines-datadog-tracing

Repo to de

monstrate the difference between tracing approaches

To run DD agent container:

```shell

docker run -it --cgroupns host \

                --pid host \

                -v /var/run/docker.sock:/var/run/docker.sock:ro \

                -v /proc/:/host/proc/:ro \

                -v /sys/fs/cgroup/:/host/sys/fs/cgroup:ro \

                -p 127.0.0.1:8126:8126/tcp \

                -e DD_DOGSTATSD_NON_LOCAL_TRAFFIC=true \

                -e DD_APM_ENABLED=true \

                -e DD_APM_NON_LOCAL_TRAFFIC=true \

                -e DD_API_KEY=$DD_API_KEY \

                -e DD_SITE="datadoghq.eu" \

                gcr.io/datadoghq/agent:latest

```

To run the app with DD agent and coroutines instrumentation enabled:

```shell

./gradlew runTheApp

```

### The app will repeatedly generate 2 traces:

1. One using the methods annotated with `@Trace` annotation

2. One using the methods instrumented imperatively with helper functions 

(see kotlin/dev/monosoul/coroutines/tracing/TracingUtils.kt)

### In the first case the trace will look like this:

![with_annotation.png](assets%2Fwith_annotation.png)

### In the second case the trace will look like this:

![with_helpers.png](assets%2Fwith_helpers.png)

As you can see there are no breaks in the traces in the second case,

also the span hierarchy looks better there.