Examples of org.apache.hadoop.metrics.util.MetricsTimeVaryingRate

org.apache.hadoop.metrics.util.MetricsTimeVaryingRate
The MetricsTimeVaryingRate class is for a rate based metric that naturally varies over time (e.g. time taken to create a file). The rate is averaged at each interval heart beat (the interval is set in the metrics config file). This class also keeps track of the min and max rates along with a method to reset the min-max.


  private MetricsTimeVaryingRate get(String key) {
    return (MetricsTimeVaryingRate) registry.get(key);
  }
  private MetricsTimeVaryingRate create(String key) {
    MetricsTimeVaryingRate newMetric = new MetricsTimeVaryingRate(key, this.registry);
    return newMetric;
  }

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    MetricsTimeVaryingRate newMetric = new MetricsTimeVaryingRate(key, this.registry);
    return newMetric;
  }


  public synchronized void inc(String name, int amt) {
    MetricsTimeVaryingRate m = get(name);
    if (m == null) {
      m = create(name);
    }
    m.inc(amt);
  }

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    synchronized (registry) {
      // Iterate through the registry to propogate the different rpc metrics.


      for (String metricName : registry.getKeyList() ) {
        MetricsTimeVaryingRate value = (MetricsTimeVaryingRate) registry.get(metricName);


        value.pushMetric(metricsRecord);
      }
    }
    metricsRecord.update();
  }

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  public void setUp() {
    this.registry = new MetricsRegistry();
    this.metricsRate = new MetricsRate("metricsRate", registry, "test");
    this.intValue = new MetricsIntValue("intValue", registry, "test");
    this.varyRate = new MetricsTimeVaryingRate("varyRate", registry, "test");
    this.stats = new TestStatistics(registry);
    MetricsContext context = MetricsUtil.getContext("hbase");
    this.metricsRecord = MetricsUtil.createRecord(context, "test");
    this.metricsRecord.setTag("TestStatistics", "test");
    //context.registerUpdater(this);

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                    " procesingTime= " + processingTime);
        }
        rpcMetrics.rpcQueueTime.inc(qTime);
        rpcMetrics.rpcProcessingTime.inc(processingTime);


        MetricsTimeVaryingRate m =
         (MetricsTimeVaryingRate) rpcDetailedMetrics.registry.get(call.getMethodName());
        if (m == null) {
          try {
            m = new MetricsTimeVaryingRate(call.getMethodName(),
                                                rpcDetailedMetrics.registry);
          } catch (IllegalArgumentException iae) {
            // the metrics has been registered; re-fetch the handle
            LOG.info("Error register " + call.getMethodName(), iae);
            m = (MetricsTimeVaryingRate) rpcDetailedMetrics.registry.get(
                call.getMethodName());
          }
        }
        m.inc(processingTime);


        if (verbose) log("Return: "+value);


        return new ObjectWritable(method.getReturnType(), value);

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    private final MetricsLongValue lastTimestampInputProcessed;


    public SepMetrics(String recordName) {
        this.recordName = recordName;
        metricsRegistry = new MetricsRegistry();
        sepProcessingRate = new MetricsTimeVaryingRate("sepProcessed", metricsRegistry);
        lastTimestampInputProcessed = new MetricsLongValue("lastSepTimestamp", metricsRegistry);


        context = MetricsUtil.getContext("repository");
        metricsRecord = MetricsUtil.createRecord(context, recordName);
        context.registerUpdater(this);

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    } else if (o instanceof MetricsTimeVaryingInt) {
        return ((MetricsTimeVaryingInt)o).getPreviousIntervalValue();
    } else if (o instanceof MetricsTimeVaryingLong) {
        return ((MetricsTimeVaryingLong)o).getPreviousIntervalValue();
    } else if (o instanceof MetricsTimeVaryingRate) {
      MetricsTimeVaryingRate or = (MetricsTimeVaryingRate) o;
      if (attributeName.endsWith(NUM_OPS)) {
          return or.getPreviousIntervalNumOps();
      } else if (attributeName.endsWith(AVG_TIME)) {
          return or.getPreviousIntervalAverageTime();
      } else if (attributeName.endsWith(MIN_TIME)) {
          return or.getMinTime();
      } else if (attributeName.endsWith(MAX_TIME)) {
          return or.getMaxTime();
      } else {
        MetricsUtil.LOG.error("Unexpected attrubute suffix");
        throw new AttributeNotFoundException();
      }
    } else if (o instanceof MetricsNonTimeRate) {

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    private final String recordName;


    public RepositoryMetrics(String recordName) {
        this.recordName = recordName;
        for (Action action : Action.values()) {
            rates.put(action, new MetricsTimeVaryingRate(action.name().toLowerCase(), registry));
        }


        for (HBaseAction action : HBaseAction.values()) {
            hbaseRates.put(action, new MetricsTimeVaryingRate(action.name().toLowerCase(), registry));
        }
        lastMutationEventTimestamp = new MetricsLongValue("timestampLastMutation", registry);
        context = MetricsUtil.getContext("repository");
        metricsRecord = MetricsUtil.createRecord(context, recordName);
        context.registerUpdater(this);

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    private final String recordName;


    public LinkIndexMetrics(String recordName) {
        this.recordName = recordName;
        for (Action action : Action.values()) {
            rates.put(action, new MetricsTimeVaryingRate(action.name().toLowerCase(), registry));
        }


        context = MetricsUtil.getContext("linkIndex");
        metricsRecord = MetricsUtil.createRecord(context, recordName);
        context.registerUpdater(this);

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    private final String recordName;


    public LinkIndexUpdaterMetrics(String recordName) {
        this.recordName = recordName;
        for (Action action : Action.values()) {
            rates.put(action, new MetricsTimeVaryingRate(action.name().toLowerCase(), registry));
        }


        context = MetricsUtil.getContext("linkIndexUpdater");
        metricsRecord = MetricsUtil.createRecord(context, recordName);
        context.registerUpdater(this);

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