apm-instrumentation.md

Lab 2.1: APM System Metrics and Profiling for Java

Enable Always On Profiling and Metrics and Add Resource Attributes to Spans

To enable CPU and Memory Profiling on the application we can start the application by passing splunk.profiler.enabled=true, splunk.profiler.memory.enabled=true and for metrics pass splunk.metrics.enabled=true.

Make sure the application is stopped and update the startup command to enable metrics and profiling.

sudo java \
-Dotel.service.name=$APP_NAME \
-Dotel.resource.attributes=deployment.environment=$ENV_NAME,version=0.970 \
-Dsplunk.profiler.enabled=true \
-Dsplunk.profiler.memory.enabled=true \
-Dsplunk.metrics.enabled=true \
-jar target/spring-petclinic-*.jar --spring.profiles.active=mysql

You can now visit the Splunk APM UI and examine the application components, traces, profiling, DB Query performance and metrics.

Once your validation is complete you can stop the application by pressing Ctrl-C.

Next Step

Go back to Main Page and Proceed to Lab 4