Example usage for org.apache.hadoop.metrics2 MetricsSystem register

Introduction

In this page you can find the example usage for org.apache.hadoop.metrics2 MetricsSystem register.

Prototype

public abstract <T extends MetricsSink> T register(String name, String desc, T sink);

Source Link

Document

Register a metrics sink

Usage

From source file:com.github.joshelser.dropwizard.metrics.hadoop.StandaloneExample.java

License:Apache License

public static void main(String[] args) throws Exception {
    final MetricRegistry metrics = new MetricRegistry();

    final HadoopMetrics2Reporter metrics2Reporter = HadoopMetrics2Reporter.forRegistry(metrics).build(
            DefaultMetricsSystem.initialize("StandaloneTest"), // The application-level name
            "Test", // Component name
            "Test", // Component description
            "Test"); // Name for each metric record
    final ConsoleReporter consoleReporter = ConsoleReporter.forRegistry(metrics).build();

    MetricsSystem metrics2 = DefaultMetricsSystem.instance();
    // Writes to stdout without a filename configuration
    // Will be invoked every 10seconds by default
    FileSink sink = new FileSink();
    metrics2.register("filesink", "filesink", sink);
    sink.init(new SubsetConfiguration(null, null) {
        public String getString(String key) {
            if (key.equals("filename")) {
                return null;
            }//from  w  w w  .j  av a2s.c  om
            return super.getString(key);
        }
    });

    // How often should the dropwizard reporter be invoked
    metrics2Reporter.start(500, TimeUnit.MILLISECONDS);
    // How often will the dropwziard metrics be logged to the console
    consoleReporter.start(2, TimeUnit.SECONDS);

    generateMetrics(metrics, 5000, 25, TimeUnit.MILLISECONDS, metrics2Reporter, 10);
}

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From source file:com.twitter.hraven.hadoopJobMonitor.metrics.HadoopJobMonitorMetrics.java

License:Apache License

static HadoopJobMonitorMetrics create(Configuration conf) {
    MetricsSystem ms = DefaultMetricsSystem.instance();

    HadoopJobMonitorMetrics metricObject = new HadoopJobMonitorMetrics();
    MetricsSourceBuilder sb = MetricsAnnotations.newSourceBuilder(metricObject);
    final MetricsSource s = sb.build();
    ms.register("HadoopJobMonitorMetrics", "The Metrics of HadoopJobMonitor service", s);

    ScheduledExecutorService heartbeatExecutor = Executors
            .newSingleThreadScheduledExecutor(new SimpleThreadFactory());
    heartbeatExecutor.scheduleAtFixedRate(metricObject.new Heart(), 0, 1, TimeUnit.MINUTES);
    return metricObject;
}

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From source file:org.apache.phoenix.trace.TraceMetricSource.java

License:Apache License

public TraceMetricSource() {

    MetricsSystem manager = Metrics.initialize();

    // Register this instance.
    // For right now, we ignore the MBean registration issues that show up in DEBUG logs. Basically,
    // we need a Jmx MBean compliant name. We'll get to a better name when we want that later
    manager.register(CONTEXT, "Phoenix call tracing", this);
}

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