MetricsServlet doesn't update or list other metrics

[Tan-Vinh Nguyen]

• I just trying out the reporting with HTTP.
• MetricsServlet gives following JSON output.
• I have only one MetricsRegistry in the application/JVM.
  

{
  "version" : "3.0.0",
  "gauges" : {
    "jmsQueue" : {
      "value" : 2
    }},
  "counters" : { },
  "histograms" : { },
  "meters" : { },
  "timers" : { }
}

• If I refresh the web-page the JSON will be updated only for listed gauge.
• Other metrics are not added or listed.
• Another reporter (Slf4jReporter) reports correctly all other metrics

17:28:15,392 INFO  [metrics-reporter-demo] (metrics-logger-reporter-28-thread-1) type=COUNTER, name=Transaction.approved.count, count=1
17:28:15,392 INFO  [metrics-reporter-demo] (metrics-logger-reporter-28-thread-1) type=HISTOGRAM, name=approved, count=1, min=1, max=1, mean=1.0, stddev=0.0, median=1.0, p75=1.0, p95=1.0, p98=1.0, p99=1.0, p999=1.0
17:28:58,840 INFO  [metrics-reporter-demo] (metrics-logger-reporter-1-thread-1) type=GAUGE, name=jmsQueue, value=2

I'm not sure if my assumption is right, but if I hit the webpage or invoke the MetricsServlet again, the metrics / JSON output should be updated?

I used the a simple Java EE 6 - EAR running under JBoss EAP 6.4.0

My servlet uses a singleton bean

@WebListener
public class DemoMetricsServletContextListener extends MetricsServlet.ContextListener {

    @Inject
    private DemoMetrics metrics;

    @Override
    protected MetricRegistry getMetricRegistry() {
        return metrics.getRegistry();
    }
}

All other metrics uses this singleton bean to register against the MetricsRegistry

@Startup
@Singleton(description = "contains the single metrics registry")
public class DemoMetrics {

    private final MetricRegistry registry;

    public DemoMetrics() {
        registry = new MetricRegistry();

        try {
            setupJmxGauges();
            setupJvmGauges();
        } catch (MalformedObjectNameException e) {
            LOGGER.error("error in setup JMX metrics", e);
        }

        final Slf4jReporter reporter = Slf4jReporter.forRegistry(registry).outputTo(LoggerFactory.getLogger("metrics-reporter-demo")).convertRatesTo(TimeUnit.SECONDS).build();
        reporter.start(1, TimeUnit.MINUTES);
    }
    //..
}

Any pointers or confirmation might be helpful.

[Lakshmipriya Sreelal]

Hi,

Have you got it worked. I am stuck at the very same stage.

Cheers,

Lakshmi

[Tan-Vinh Nguyen]

Hi,

I move forward using the JMX Reporter and exposed the metrics with jolokia.war. Much more reliable and unified way.

HTH

--
You received this message because you are subscribed to a topic in the Google Groups "metrics-user" group.
To unsubscribe from this topic, visit https://groups.google.com/d/topic/metrics-user/k0mNFHk1saM/unsubscribe.
To unsubscribe from this group and all its topics, send an email to metrics-user...@googlegroups.com.
For more options, visit https://groups.google.com/d/optout.