Package org.apache.hadoop.metrics2

Examples of org.apache.hadoop.metrics2.MetricsException

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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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  }

  public MetricsSource build() {
    if (source instanceof MetricsSource) {
      if (hasAtMetric && !hasRegistry) {
        throw new MetricsException("Hybrid metrics: registry required.");
      }
      return (MetricsSource) source;
    }
    else if (!hasAtMetric) {
      throw new MetricsException("No valid @Metric annotation found.");
    }
    return new MetricsSource() {
      @Override
      public void getMetrics(MetricsCollector builder, boolean all) {
        registry.snapshot(builder.addRecord(registry.info()), all);
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        try {
          field.set(source, mutable);
          hasAtMetric = true;
        }
        catch (Exception e) {
          throw new MetricsException("Error setting field "+ field +
                                     " annotated with "+ annotation, e);
        }
      }
    }
  }
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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);
      }
    }
    checkMetricName(name);
    MutableRate ret = new MutableRate(name, desc, extended);
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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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    return metricsMap.values();
  }

  private void checkMetricName(String name) {
    if (metricsMap.containsKey(name)) {
      throw new MetricsException("Metric name "+ name +" already exists!");
    }
  }
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    }
  }

  private void checkTagName(String name) {
    if (tagsMap.containsKey(name)) {
      throw new MetricsException("Tag "+ name +" already exists!");
    }
  }
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    String[] patternStrings = conf.getStringArray(INCLUDE_TAGS_KEY);
    if (patternStrings != null && patternStrings.length != 0) {
      for (String pstr : patternStrings) {
        Matcher matcher = tagPattern.matcher(pstr);
        if (!matcher.matches()) {
          throw new MetricsException("Illegal tag pattern: "+ pstr);
        }
        setIncludeTagPattern(matcher.group(1), compile(matcher.group(2)));
      }
    }
    patternStrings = conf.getStringArray(EXCLUDE_TAGS_KEY);
    if (patternStrings != null && patternStrings.length != 0) {
      for (String pstr : patternStrings) {
        Matcher matcher = tagPattern.matcher(pstr);
        if (!matcher.matches()) {
          throw new MetricsException("Illegal tag pattern: "+ pstr);
        }
        setExcludeTagPattern(matcher.group(1), compile(matcher.group(2)));
      }
    }
  }
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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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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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