Package org.apache.hadoop.metrics2

Examples of org.apache.hadoop.metrics2.MetricsException

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        try {
            // Open an connection to Graphite server.
            socket = new Socket(serverHost, serverPort);
            writer = new OutputStreamWriter(socket.getOutputStream());
        } catch (Exception e) {
            throw new MetricsException("Error creating connection, "
                    + serverHost + ":" + serverPort, e);
        }
    }
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        try {
            if(writer != null){
              writer.write(lines.toString());
            } else {
              throw new MetricsException("Writer in GraphiteSink is null!");
            }
        } catch (Exception e) {
            throw new MetricsException("Error sending metrics", e);
        }
    }
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    @Override
    public void flush() {
        try {
            writer.flush();
        } catch (Exception e) {
            throw new MetricsException("Error flushing metrics", e);
        }
    }
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      try {
        IOUtils.closeStream(writer);
        writer = null;
        LOG.info("writer in GraphiteSink is closed!");
      } catch (Throwable e){
        throw new MetricsException("Error closing writer", e);
      } finally {
        if (socket != null && !socket.isClosed()) {
          socket.close();
          socket = null;
          LOG.info("socket in GraphiteSink is closed!");
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  @Override
  public synchronized void start() {
    checkNotNull(prefix, "prefix");
    if (monitoring) {
      LOG.warn(prefix +" metrics system already started!",
               new MetricsException("Illegal start"));
      return;
    }
    for (Callback cb : callbacks) cb.preStart();
    configure(prefix);
    startTimer();
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  @Override
  public synchronized void stop() {
    if (!monitoring && !DefaultMetricsSystem.inMiniClusterMode()) {
      LOG.warn(prefix +" metrics system not yet started!",
               new MetricsException("Illegal stop"));
      return;
    }
    if (!monitoring) {
      // in mini cluster mode
      LOG.info(prefix +" metrics system stopped (again)");
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      boolean extended, boolean returnExisting) {
    if (returnExisting) {
      MutableMetric rate = metricsMap.get(name);
      if (rate != null) {
        if (rate instanceof MutableRate) return (MutableRate) rate;
        throw new MetricsException("Unexpected metrics type "+ rate.getClass()
                                   +" for "+ name);
      }
    }
    MutableRate ret = new MutableRate(name, desc, extended);
    return addNewMetricIfAbsent(name, ret, MutableRate.class);
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    if (m != null) {
      if (m instanceof MutableStat) {
        ((MutableStat) m).add(value);
      }
      else {
        throw new MetricsException("Unsupported add(value) for metric "+ name);
      }
    }
    else {
      metricsMap.put(name, newRate(name)); // default is a rate metric
      add(name, value);
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    MetricsTag tag = Interns.tag(info, value);

    if (!override) {
      MetricsTag existing = tagsMap.putIfAbsent(info.name(), tag);
      if (existing != null) {
        throw new MetricsException("Tag "+ info.name() +" already exists!");
      }
      return this;
    }

    tagsMap.put(info.name(), tag);
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        return newGauge;
      }
    }

    if (!(metric instanceof MutableGaugeLong)) {
      throw new MetricsException("Metric already exists in registry for metric name: " + gaugeName +
              " and not of type MetricMutableGaugeLong");
    }

    return (MutableGaugeLong) metric;
  }
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Related Classes of org.apache.hadoop.metrics2.MetricsException

  • com.alibaba.wasp.metrics.BaseSourceImpl
  • com.alibaba.wasp.metrics.DynamicMetricsRegistry
  • com.alibaba.wasp.metrics.TestBaseSourceImpl
  • com.yammer.metrics.stats.ExponentiallyDecayingSample
  • com.yammer.metrics.stats.Snapshot
  • org.apache.commons.configuration.Configuration
  • org.apache.commons.configuration.PropertiesConfiguration
  • org.apache.commons.configuration.SubsetConfiguration
  • org.apache.hadoop.hbase.ipc.MetricsHBaseServerSourceImpl
  • org.apache.hadoop.hbase.master.MetricsMasterSourceImpl
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