JarCastingLightstep Java Metrics Reporter
This library automatically reports a set of predefined host metrics (such as CPU and memory usage) to the Lightstep backend.
Java 8 or newer is required. When running Java 7, no metrics reporting will be performed.
Note: Using this artifact requires tracing being done in the same process and sharing the same service name/version and access token. If not done, the reported metrics will be ignored at the backend.
Maven
<dependency>
<groupId>com.lightstep.tracer</groupId>
<artifactId>java-metrics-reporter</artifactId>
<version>VERSION</version>
</dependency>
Usage
import com.lightstep.tracer.metrics.Metrics;
import com.lightstep.tracer.metrics.OkHttpSender;
import com.lightstep.tracer.metrics.Sender;
...
// Done once, at application initialization.
Sender<?,?> sender = new OkHttpSender(
"MyServiceName", // Service/Component name.
"MyAccessToken", // Access Token. Nullable
"1.2.3", // Service version. Nullable
"https://" // Metrics url
30000 // connect timeout in milliseconds
);
// Metrics inherits from Thread.
Metrics metrics = new Metrics(
sender,
30 // sample period in seconds
);
metrics.setDaemon(true);
metrics.start();
// Done at application/reporter shutdown.
metrics.close();
