Java Configuration.getInts方法代碼示例

import org.apache.hadoop.conf.Configuration; //導入方法依賴的package包/類
public WeightedRoundRobinMultiplexer(int aNumQueues, String ns,
  Configuration conf) {
  if (aNumQueues <= 0) {
    throw new IllegalArgumentException("Requested queues (" + aNumQueues +
      ") must be greater than zero.");
  }

  this.numQueues = aNumQueues;
  this.queueWeights = conf.getInts(ns + "." +
    IPC_CALLQUEUE_WRRMUX_WEIGHTS_KEY);

  if (this.queueWeights.length == 0) {
    this.queueWeights = getDefaultQueueWeights(this.numQueues);
  } else if (this.queueWeights.length != this.numQueues) {
    throw new IllegalArgumentException(ns + "." +
      IPC_CALLQUEUE_WRRMUX_WEIGHTS_KEY + " must specify exactly " +
      this.numQueues + " weights: one for each priority level.");
  }

  this.currentQueueIndex = new AtomicInteger(0);
  this.requestsLeft = new AtomicInteger(this.queueWeights[0]);

  LOG.info("WeightedRoundRobinMultiplexer is being used.");
}
 

import org.apache.hadoop.conf.Configuration; //導入方法依賴的package包/類
private static double[] parseThresholds(String ns, Configuration conf,
    int numQueues) {
  int[] percentages = conf.getInts(ns + "." +
    IPC_CALLQUEUE_DECAYSCHEDULER_THRESHOLDS_KEY);

  if (percentages.length == 0) {
    return getDefaultThresholds(numQueues);
  } else if (percentages.length != numQueues-1) {
    throw new IllegalArgumentException("Number of thresholds should be " +
      (numQueues-1) + ". Was: " + percentages.length);
  }

  // Convert integer percentages to decimals
  double[] decimals = new double[percentages.length];
  for (int i = 0; i < percentages.length; i++) {
    decimals[i] = percentages[i] / 100.0;
  }

  return decimals;
}
 

import org.apache.hadoop.conf.Configuration; //導入方法依賴的package包/類
private IPCLoggerChannelMetrics(IPCLoggerChannel ch) {
  this.ch = ch;
  
  Configuration conf = new HdfsConfiguration();
  int[] intervals = 
      conf.getInts(DFSConfigKeys.DFS_METRICS_PERCENTILES_INTERVALS_KEY);
  if (intervals != null) {
    writeEndToEndLatencyQuantiles = new MutableQuantiles[intervals.length];
    writeRpcLatencyQuantiles = new MutableQuantiles[intervals.length];
    for (int i = 0; i < writeEndToEndLatencyQuantiles.length; i++) {
      int interval = intervals[i];
      writeEndToEndLatencyQuantiles[i] = registry.newQuantiles(
          "writesE2E" + interval + "s",
          "End-to-end time for write operations", "ops", "LatencyMicros", interval);
      writeRpcLatencyQuantiles[i] = registry.newQuantiles(
          "writesRpc" + interval + "s",
          "RPC RTT for write operations", "ops", "LatencyMicros", interval);
    }
  } else {
    writeEndToEndLatencyQuantiles = null;
    writeRpcLatencyQuantiles = null;
  }
}
 

import org.apache.hadoop.conf.Configuration; //導入方法依賴的package包/類
RpcMetrics(Server server, Configuration conf) {
  String port = String.valueOf(server.getListenerAddress().getPort());
  name = "RpcActivityForPort" + port;
  this.server = server;
  registry = new MetricsRegistry("rpc").tag("port", "RPC port", port);
  int[] intervals = conf.getInts(
      CommonConfigurationKeys.RPC_METRICS_PERCENTILES_INTERVALS_KEY);
  rpcQuantileEnable = (intervals.length > 0) && conf.getBoolean(
      CommonConfigurationKeys.RPC_METRICS_QUANTILE_ENABLE,
      CommonConfigurationKeys.RPC_METRICS_QUANTILE_ENABLE_DEFAULT);
  if (rpcQuantileEnable) {
    rpcQueueTimeMillisQuantiles =
        new MutableQuantiles[intervals.length];
    rpcProcessingTimeMillisQuantiles =
        new MutableQuantiles[intervals.length];
    for (int i = 0; i < intervals.length; i++) {
      int interval = intervals[i];
      rpcQueueTimeMillisQuantiles[i] = registry.newQuantiles("rpcQueueTime"
          + interval + "s", "rpc queue time in milli second", "ops",
          "latency", interval);
      rpcProcessingTimeMillisQuantiles[i] = registry.newQuantiles(
          "rpcProcessingTime" + interval + "s",
          "rpc processing time in milli second", "ops", "latency", interval);
    }
  }
  LOG.debug("Initialized " + registry);
}
 

import org.apache.hadoop.conf.Configuration; //導入方法依賴的package包/類
public static Nfs3Metrics create(Configuration conf, String gatewayName) {
  String sessionId = conf.get(DFSConfigKeys.DFS_METRICS_SESSION_ID_KEY);
  MetricsSystem ms = DefaultMetricsSystem.instance();
  JvmMetrics jm = JvmMetrics.create(gatewayName, sessionId, ms);

  // Percentile measurement is [50th,75th,90th,95th,99th] currently 
  int[] intervals = conf
      .getInts(NfsConfigKeys.NFS_METRICS_PERCENTILES_INTERVALS_KEY);
  return ms.register(new Nfs3Metrics(gatewayName, sessionId, intervals, jm));
}
 

import org.apache.hadoop.conf.Configuration; //導入方法依賴的package包/類
public static NameNodeMetrics create(Configuration conf, NamenodeRole r) {
  String sessionId = conf.get(DFSConfigKeys.DFS_METRICS_SESSION_ID_KEY);
  String processName = r.toString();
  MetricsSystem ms = DefaultMetricsSystem.instance();
  JvmMetrics jm = JvmMetrics.create(processName, sessionId, ms);
  
  // Percentile measurement is off by default, by watching no intervals
  int[] intervals = 
      conf.getInts(DFSConfigKeys.DFS_METRICS_PERCENTILES_INTERVALS_KEY);
  return ms.register(new NameNodeMetrics(processName, sessionId,
      intervals, jm));
}
 

import org.apache.hadoop.conf.Configuration; //導入方法依賴的package包/類
public static DataNodeMetrics create(Configuration conf, String dnName) {
  String sessionId = conf.get(DFSConfigKeys.DFS_METRICS_SESSION_ID_KEY);
  MetricsSystem ms = DefaultMetricsSystem.instance();
  JvmMetrics jm = JvmMetrics.create("DataNode", sessionId, ms);
  String name = "DataNodeActivity-"+ (dnName.isEmpty()
      ? "UndefinedDataNodeName"+ DFSUtil.getRandom().nextInt() 
          : dnName.replace(':', '-'));

  // Percentile measurement is off by default, by watching no intervals
  int[] intervals = 
      conf.getInts(DFSConfigKeys.DFS_METRICS_PERCENTILES_INTERVALS_KEY);
  
  return ms.register(name, null, new DataNodeMetrics(name, sessionId,
      intervals, jm));
}