hadoop AMRunner 源码

haddop AMRunner 代码

文件路径：/hadoop-tools/hadoop-sls/src/main/java/org/apache/hadoop/yarn/sls/AMRunner.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *     http://www.apache.org/licenses/LICENSE-2.0
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.hadoop.yarn.sls;

import com.fasterxml.jackson.core.JsonFactory;
import com.fasterxml.jackson.databind.JavaType;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.tools.rumen.JobTraceReader;
import org.apache.hadoop.tools.rumen.LoggedJob;
import org.apache.hadoop.util.ReflectionUtils;
import org.apache.hadoop.yarn.api.records.ApplicationId;
import org.apache.hadoop.yarn.api.records.ReservationId;
import org.apache.hadoop.yarn.exceptions.YarnException;
import org.apache.hadoop.yarn.server.resourcemanager.ResourceManager;
import org.apache.hadoop.yarn.sls.SLSRunner.TraceType;
import org.apache.hadoop.yarn.sls.appmaster.AMSimulator;
import org.apache.hadoop.yarn.sls.conf.SLSConfiguration;
import org.apache.hadoop.yarn.sls.scheduler.TaskRunner;
import org.apache.hadoop.yarn.sls.synthetic.SynthJob;
import org.apache.hadoop.yarn.sls.synthetic.SynthTraceJobProducer;
import org.apache.hadoop.yarn.util.UTCClock;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.Reader;
import java.nio.charset.StandardCharsets;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.ConcurrentHashMap;


public class AMRunner {
  private static final Logger LOG = LoggerFactory.getLogger(AMRunner.class);
  int remainingApps = 0;

  private final Configuration conf;
  private int AM_ID;
  private Map<String, AMSimulator> amMap;
  private Map<ApplicationId, AMSimulator> appIdAMSim;
  private Set<String> trackedApps;
  private Map<String, Class> amClassMap;
  private TraceType inputType;
  private String[] inputTraces;
  private final TaskRunner runner;
  private final SLSRunner slsRunner;
  private int numAMs, numTasks;
  private long maxRuntime;
  private ResourceManager rm;

  public AMRunner(TaskRunner runner, SLSRunner slsRunner) {
    this.runner = runner;
    this.slsRunner = slsRunner;
    this.conf = slsRunner.getConf();
  }


  public void init(Configuration conf) throws ClassNotFoundException {
    amMap = new ConcurrentHashMap<>();
    amClassMap = new HashMap<>();
    appIdAMSim = new ConcurrentHashMap<>();
    // <AMType, Class> map
    for (Map.Entry<String, String> e : conf) {
      String key = e.getKey();
      if (key.startsWith(SLSConfiguration.AM_TYPE_PREFIX)) {
        String amType = key.substring(SLSConfiguration.AM_TYPE_PREFIX.length());
        amClassMap.put(amType, Class.forName(conf.get(key)));
      }
    }
  }

  public void startAM() throws YarnException, IOException {
    switch (inputType) {
      case SLS:
        for (String inputTrace : inputTraces) {
          startAMFromSLSTrace(inputTrace);
        }
        break;
      case RUMEN:
        long baselineTimeMS = 0;
        for (String inputTrace : inputTraces) {
          startAMFromRumenTrace(inputTrace, baselineTimeMS);
        }
        break;
      case SYNTH:
        startAMFromSynthGenerator();
        break;
      default:
        throw new YarnException("Input configuration not recognized, "
            + "trace type should be SLS, RUMEN, or SYNTH");
    }

    numAMs = amMap.size();
    remainingApps = numAMs;
  }

  /**
   * Parse workload from a SLS trace file.
   */
  private void startAMFromSLSTrace(String inputTrace) throws IOException {
    JsonFactory jsonF = new JsonFactory();
    ObjectMapper mapper = new ObjectMapper();

    try (Reader input = new InputStreamReader(
        new FileInputStream(inputTrace), StandardCharsets.UTF_8)) {
      JavaType type = mapper.getTypeFactory().
          constructMapType(Map.class, String.class, String.class);
      Iterator<Map<String, String>> jobIter = mapper.readValues(
          jsonF.createParser(input), type);

      while (jobIter.hasNext()) {
        try {
          Map<String, String> jsonJob = jobIter.next();
          AMDefinitionSLS amDef = AMDefinitionFactory.createFromSlsTrace(jsonJob, slsRunner);
          startAMs(amDef);
        } catch (Exception e) {
          LOG.error("Failed to create an AM: {}", e.getMessage());
        }
      }
    }
  }

  /**
   * parse workload information from synth-generator trace files.
   */
  private void startAMFromSynthGenerator() throws YarnException, IOException {
    Configuration localConf = new Configuration();
    localConf.set("fs.defaultFS", "file:///");
    //if we use the nodeFile this could have been not initialized yet.
    if (slsRunner.getStjp() == null) {
      slsRunner.setStjp(new SynthTraceJobProducer(conf, new Path(inputTraces[0])));
    }

    SynthJob job;
    // we use stjp, a reference to the job producer instantiated during node
    // creation
    while ((job = (SynthJob) slsRunner.getStjp().getNextJob()) != null) {
      ReservationId reservationId = null;
      if (job.hasDeadline()) {
        reservationId = ReservationId
            .newInstance(rm.getStartTime(), AM_ID);
      }
      AMDefinitionSynth amDef = AMDefinitionFactory.createFromSynth(job, slsRunner);
      startAMs(amDef, reservationId, job.getParams(), job.getDeadline());
    }
  }

  /**
   * Parse workload from a rumen trace file.
   */
  private void startAMFromRumenTrace(String inputTrace, long baselineTimeMS)
      throws IOException {
    Configuration conf = new Configuration();
    conf.set("fs.defaultFS", "file:///");
    File fin = new File(inputTrace);

    try (JobTraceReader reader = new JobTraceReader(
        new Path(fin.getAbsolutePath()), conf)) {
      LoggedJob job = reader.getNext();

      while (job != null) {
        try {
          AMDefinitionRumen amDef =
              AMDefinitionFactory.createFromRumenTrace(job, baselineTimeMS,
                  slsRunner);
          startAMs(amDef);
        } catch (Exception e) {
          LOG.error("Failed to create an AM", e);
        }
        job = reader.getNext();
      }
    }
  }

  private void startAMs(AMDefinition amDef) {
    for (int i = 0; i < amDef.getJobCount(); i++) {
      JobDefinition jobDef = JobDefinition.Builder.create()
          .withAmDefinition(amDef)
          .withDeadline(-1)
          .withReservationId(null)
          .withParams(null)
          .build();
      runNewAM(jobDef);
    }
  }

  private void startAMs(AMDefinition amDef,
      ReservationId reservationId,
      Map<String, String> params, long deadline) {
    for (int i = 0; i < amDef.getJobCount(); i++) {
      JobDefinition jobDef = JobDefinition.Builder.create()
          .withAmDefinition(amDef)
          .withReservationId(reservationId)
          .withParams(params)
          .withDeadline(deadline)
          .build();
      runNewAM(jobDef);
    }
  }

  private void runNewAM(JobDefinition jobDef) {
    AMDefinition amDef = jobDef.getAmDefinition();
    String oldJobId = amDef.getOldAppId();
    AMSimulator amSim =
        createAmSimulator(amDef.getAmType());

    if (amSim != null) {
      int heartbeatInterval = conf.getInt(
          SLSConfiguration.AM_HEARTBEAT_INTERVAL_MS,
          SLSConfiguration.AM_HEARTBEAT_INTERVAL_MS_DEFAULT);
      boolean isTracked = trackedApps.contains(oldJobId);

      if (oldJobId == null) {
        oldJobId = Integer.toString(AM_ID);
      }
      AM_ID++;
      amSim.init(amDef, rm, slsRunner, isTracked, runner.getStartTimeMS(), heartbeatInterval, appIdAMSim);
      if (jobDef.getReservationId() != null) {
        // if we have a ReservationId, delegate reservation creation to
        // AMSim (reservation shape is impl specific)
        UTCClock clock = new UTCClock();
        amSim.initReservation(jobDef.getReservationId(), jobDef.getDeadline(), clock.getTime());
      }
      runner.schedule(amSim);
      maxRuntime = Math.max(maxRuntime, amDef.getJobFinishTime());
      numTasks += amDef.getTaskContainers().size();
      amMap.put(oldJobId, amSim);
    }
  }

  private AMSimulator createAmSimulator(String jobType) {
    return (AMSimulator) ReflectionUtils.newInstance(
        amClassMap.get(jobType), new Configuration());
  }

  public AMSimulator getAMSimulator(ApplicationId appId) {
    return appIdAMSim.get(appId);
  }

  public void setInputType(TraceType inputType) {
    this.inputType = inputType;
  }

  public void setInputTraces(String[] inputTraces) {
    this.inputTraces = inputTraces.clone();
  }

  public void setResourceManager(ResourceManager rm) {
    this.rm = rm;
  }

  public Set<String> getTrackedApps() {
    return trackedApps;
  }

  public void setTrackedApps(Set<String> trackApps) {
    this.trackedApps = trackApps;
  }

  public int getNumAMs() {
    return numAMs;
  }

  public int getNumTasks() {
    return numTasks;
  }

  public long getMaxRuntime() {
    return maxRuntime;
  }

  public Map<String, AMSimulator> getAmMap() {
    return amMap;
  }
}

相关信息

hadoop 源码目录

相关文章

hadoop AMDefinition 源码

hadoop AMDefinitionFactory 源码

hadoop AMDefinitionRumen 源码

hadoop AMDefinitionSLS 源码

hadoop AMDefinitionSynth 源码

hadoop JobDefinition 源码

hadoop NMRunner 源码

hadoop RMRunner 源码

hadoop ReservationClientUtil 源码

hadoop RumenToSLSConverter 源码