The OpenTelemetry Collector is the core component of instrumenting infrastructure and applications. Its role is to collect and send:
- Infrastructure metrics (disk, cpu, memory, etc)
- Application Performance Monitoring (APM) traces
- Profiling data
- Host and application logs
Update the command below replacing $ACCESS_TOKEN with your Splunk Observability Cloud Ingest Token. We use $HOSTNAME as environment name, but you can change it.
The --with-instrumentation option the installer will install the agent from the Splunk distribution of OpenTelemetry Java, which is then loaded automatically when the PetClinic Java application starts up. No configuration required!
curl -sSL https://dl.signalfx.com/splunk-otel-collector.sh > /tmp/splunk-otel-collector.sh && \
sudo sh /tmp/splunk-otel-collector.sh --realm us1 -- $ACCESS_TOKEN --mode agent --without-fluentd --with-instrumentation --deployment-environment $HOSTNAME
Restart the collector
sudo systemctl restart splunk-otel-collectorCheck that the collector service is up and running
sudo systemctl status splunk-otel-collectorsudo journalctl -u splunk-otel-collectorOnce the install is completed, you can navigate to the Hosts with agent installed dashboard to see the data from your host, Dashboards → Hosts with agent installed.
Use the dashboard filter and select host.name and type or select the hostname of your virtual machine. Once you see data flowing for your host, we are then ready to get started with the APM component.