hadoop HistoryViewer 源码

  • 2022-10-20
  • 浏览 (108)

haddop HistoryViewer 代码

文件路径:/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/jobhistory/HistoryViewer.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.mapreduce.jobhistory;

import java.io.IOException;
import java.io.PrintStream;
import java.util.HashMap;
import java.util.Map;
import java.util.Set;
import java.util.TreeSet;

import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.classification.InterfaceStability;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.mapred.TaskStatus;
import org.apache.hadoop.mapreduce.TaskAttemptID;
import org.apache.hadoop.mapreduce.TaskID;
import org.apache.hadoop.mapreduce.TaskType;
import org.apache.hadoop.mapreduce.jobhistory.JobHistoryParser.JobInfo;
import org.apache.hadoop.mapreduce.util.HostUtil;
import org.apache.hadoop.yarn.webapp.util.WebAppUtils;

/**
 * HistoryViewer is used to parse and view the JobHistory files.  They can be
 * printed in human-readable format or machine-readable JSON format using the
 * {@link HistoryViewerPrinter}.
 */
@InterfaceAudience.Private
@InterfaceStability.Unstable
public class HistoryViewer {
  private FileSystem fs;
  private JobInfo job;
  private HistoryViewerPrinter jhvp;
  public static final String HUMAN_FORMAT = "human";
  public static final String JSON_FORMAT = "json";

  /**
   * Constructs the HistoryViewer object.
   * @param historyFile the fully qualified Path of the History File
   * @param conf the Configuration file
   * @param printAll toggle to print all status to only killed/failed status
   * @throws IOException when there is a problem parsing the history file
   */
  public HistoryViewer(String historyFile, Configuration conf,
                       boolean printAll) throws IOException {
    this(historyFile, conf, printAll, HUMAN_FORMAT);
  }

  /**
   * Constructs the HistoryViewer object.
   * @param historyFile the fully qualified Path of the History File
   * @param conf the Configuration file
   * @param printAll toggle to print all status to only killed/failed status
   * @param format the output format to use
   * @throws IOException when there is a problem parsing the history file
   */
  public HistoryViewer(String historyFile, Configuration conf, boolean printAll,
                       String format) throws IOException {
    String errorMsg = "Unable to initialize History Viewer";
    try {
      Path jobFile = new Path(historyFile);
      fs = jobFile.getFileSystem(conf);
      String[] jobDetails =
        jobFile.getName().split("_");
      if (jobDetails.length < 2) {
        // NOT a valid name
        System.err.println("Ignore unrecognized file: " + jobFile.getName());
        throw new IOException(errorMsg);
      }
      JobHistoryParser parser = new JobHistoryParser(fs, jobFile);
      job = parser.parse();
      String scheme = WebAppUtils.getHttpSchemePrefix(fs.getConf());
      if (HUMAN_FORMAT.equalsIgnoreCase(format)) {
        jhvp = new HumanReadableHistoryViewerPrinter(job, printAll, scheme);
      } else if (JSON_FORMAT.equalsIgnoreCase(format)) {
        jhvp = new JSONHistoryViewerPrinter(job, printAll, scheme);
      } else {
        System.err.println("Invalid format specified: " + format);
        throw new IllegalArgumentException(errorMsg);
      }
    } catch(IOException e) {
      throw new IOException(errorMsg, e);
    }
  }

  /**
   * Print the job/task/attempt summary information to stdout.
   * @throws IOException when there is a problem printing the history
   */
  public void print() throws IOException {
    print(System.out);
  }

  /**
   * Print the job/task/attempt summary information to the PrintStream.
   * @param ps The PrintStream to print to
   * @throws IOException when there is a problem printing the history
   */
  public void print(PrintStream ps) throws IOException {
    jhvp.print(ps);
  }
  
  /**
   * Return the TaskLogsUrl of a particular TaskAttempt.
   * 
   * @param attempt info about the task attempt
   * @return the taskLogsUrl. null if http-port or tracker-name or
   *         task-attempt-id are unavailable.
   */
  public static String getTaskLogsUrl(String scheme,
      JobHistoryParser.TaskAttemptInfo attempt) {
    if (attempt.getHttpPort() == -1
        || attempt.getTrackerName().equals("")
        || attempt.getAttemptId() == null) {
      return null;
    }
  
    String taskTrackerName =
      HostUtil.convertTrackerNameToHostName(
        attempt.getTrackerName());
    return HostUtil.getTaskLogUrl(scheme, taskTrackerName,
        Integer.toString(attempt.getHttpPort()),
        attempt.getAttemptId().toString());
  }

  /**
   * Utility class used the summarize the job. 
   * Used by HistoryViewer and the JobHistory UI.
   *
   */
  public static class SummarizedJob {
    Map<TaskID, JobHistoryParser.TaskInfo> tasks; 
     int totalMaps = 0; 
     int totalReduces = 0; 
     int totalCleanups = 0;
     int totalSetups = 0;
     int numFailedMaps = 0; 
     int numKilledMaps = 0;
     int numFailedReduces = 0; 
     int numKilledReduces = 0;
     int numFinishedCleanups = 0;
     int numFailedCleanups = 0;
     int numKilledCleanups = 0;
     int numFinishedSetups = 0;
     int numFailedSetups = 0;
     int numKilledSetups = 0;
     long mapStarted = 0; 
     long mapFinished = 0; 
     long reduceStarted = 0; 
     long reduceFinished = 0; 
     long cleanupStarted = 0;
     long cleanupFinished = 0;
     long setupStarted = 0;
     long setupFinished = 0;
     
     /** Get total maps */
     public int getTotalMaps() { return totalMaps; } 
     /** Get total reduces */
     public int getTotalReduces() { return totalReduces; } 
     /** Get number of clean up tasks */ 
     public int getTotalCleanups() { return totalCleanups; }
     /** Get number of set up tasks */
     public int getTotalSetups() { return totalSetups; }
     /** Get number of failed maps */
     public int getNumFailedMaps() { return numFailedMaps; }
     /** Get number of killed maps */
     public int getNumKilledMaps() { return numKilledMaps; }
     /** Get number of failed reduces */
     public int getNumFailedReduces() { return numFailedReduces; } 
     /** Get number of killed reduces */
     public int getNumKilledReduces() { return numKilledReduces; }
     /** Get number of cleanup tasks that finished */
     public int getNumFinishedCleanups() { return numFinishedCleanups; }
     /** Get number of failed cleanup tasks */
     public int getNumFailedCleanups() { return numFailedCleanups; }
     /** Get number of killed cleanup tasks */
     public int getNumKilledCleanups() { return numKilledCleanups; }
     /** Get number of finished set up tasks */
     public int getNumFinishedSetups() { return numFinishedSetups; }
     /** Get number of failed set up tasks */
     public int getNumFailedSetups() { return numFailedSetups; }
     /** Get number of killed set up tasks */
     public int getNumKilledSetups() { return numKilledSetups; }
     /** Get number of maps that were started */
     public long getMapStarted() { return mapStarted; } 
     /** Get number of maps that finished */
     public long getMapFinished() { return mapFinished; } 
     /** Get number of Reducers that were started */
     public long getReduceStarted() { return reduceStarted; } 
     /** Get number of reducers that finished */
     public long getReduceFinished() { return reduceFinished; } 
     /** Get number of cleanup tasks started */ 
     public long getCleanupStarted() { return cleanupStarted; }
     /** Get number of cleanup tasks that finished */
     public long getCleanupFinished() { return cleanupFinished; }
     /** Get number of setup tasks that started */
     public long getSetupStarted() { return setupStarted; }
     /** Get number of setup tasks that finished */
     public long getSetupFinished() { return setupFinished; }

     /** Create summary information for the parsed job */
    public SummarizedJob(JobInfo job) {
      tasks = job.getAllTasks();

      for (JobHistoryParser.TaskInfo task : tasks.values()) {
        Map<TaskAttemptID, JobHistoryParser.TaskAttemptInfo> attempts = 
          task.getAllTaskAttempts();
        //allHosts.put(task.getHo(Keys.HOSTNAME), "");
        for (JobHistoryParser.TaskAttemptInfo attempt : attempts.values()) {
          long startTime = attempt.getStartTime(); 
          long finishTime = attempt.getFinishTime();
          if (attempt.getTaskType().equals(TaskType.MAP)) {
            if (mapStarted== 0 || mapStarted > startTime) {
              mapStarted = startTime; 
            }
            if (mapFinished < finishTime) {
              mapFinished = finishTime; 
            }
            totalMaps++; 
            if (attempt.getTaskStatus().equals
                (TaskStatus.State.FAILED.toString())) {
              numFailedMaps++; 
            } else if (attempt.getTaskStatus().equals
                (TaskStatus.State.KILLED.toString())) {
              numKilledMaps++;
            }
          } else if (attempt.getTaskType().equals(TaskType.REDUCE)) {
            if (reduceStarted==0||reduceStarted > startTime) {
              reduceStarted = startTime; 
            }
            if (reduceFinished < finishTime) {
              reduceFinished = finishTime; 
            }
            totalReduces++; 
            if (attempt.getTaskStatus().equals
                (TaskStatus.State.FAILED.toString())) {
              numFailedReduces++; 
            } else if (attempt.getTaskStatus().equals
                (TaskStatus.State.KILLED.toString())) {
              numKilledReduces++;
            }
          } else if (attempt.getTaskType().equals(TaskType.JOB_CLEANUP)) {
            if (cleanupStarted==0||cleanupStarted > startTime) {
              cleanupStarted = startTime; 
            }
            if (cleanupFinished < finishTime) {
              cleanupFinished = finishTime; 
            }
            totalCleanups++; 
            if (attempt.getTaskStatus().equals
                (TaskStatus.State.SUCCEEDED.toString())) {
              numFinishedCleanups++; 
            } else if (attempt.getTaskStatus().equals
                (TaskStatus.State.FAILED.toString())) {
              numFailedCleanups++;
            } else if (attempt.getTaskStatus().equals
                (TaskStatus.State.KILLED.toString())) {
              numKilledCleanups++;
            }
          } else if (attempt.getTaskType().equals(TaskType.JOB_SETUP)) {
            if (setupStarted==0||setupStarted > startTime) {
              setupStarted = startTime; 
            }
            if (setupFinished < finishTime) {
              setupFinished = finishTime; 
            }
            totalSetups++; 
            if (attempt.getTaskStatus().equals
                (TaskStatus.State.SUCCEEDED.toString())) {
              numFinishedSetups++;
            } else if (attempt.getTaskStatus().equals
                (TaskStatus.State.FAILED.toString())) {
              numFailedSetups++;
            } else if (attempt.getTaskStatus().equals
                (TaskStatus.State.KILLED.toString())) {
              numKilledSetups++;
            }
          }
        }
      }
    }
  }

  /**
   * Utility class used while analyzing the job. 
   * Used by HistoryViewer and the JobHistory UI.
   */
  public static class AnalyzedJob {
    private long avgMapTime;
    private long avgReduceTime;
    private long avgShuffleTime;
    
    private JobHistoryParser.TaskAttemptInfo [] mapTasks;
    private JobHistoryParser.TaskAttemptInfo [] reduceTasks;

    /** Get the average map time */
    public long getAvgMapTime() { return avgMapTime; }
    /** Get the average reduce time */
    public long getAvgReduceTime() { return avgReduceTime; }
    /** Get the average shuffle time */
    public long getAvgShuffleTime() { return avgShuffleTime; }
    /** Get the map tasks list */
    public JobHistoryParser.TaskAttemptInfo [] getMapTasks() { 
      return mapTasks;
    }
    /** Get the reduce tasks list */
    public JobHistoryParser.TaskAttemptInfo [] getReduceTasks() { 
      return reduceTasks;
    }
    /** Generate analysis information for the parsed job */
    public AnalyzedJob (JobInfo job) {
      Map<TaskID, JobHistoryParser.TaskInfo> tasks = job.getAllTasks();
      int succeededMaps = (int) job.getSucceededMaps();
      int succeededReduces = (int) job.getSucceededReduces();
      mapTasks = 
        new JobHistoryParser.TaskAttemptInfo[succeededMaps];
      reduceTasks = 
        new JobHistoryParser.TaskAttemptInfo[succeededReduces];
      int mapIndex = 0 , reduceIndex=0; 
      avgMapTime = 0;
      avgReduceTime = 0;
      avgShuffleTime = 0;

      for (JobHistoryParser.TaskInfo task : tasks.values()) {
        Map<TaskAttemptID, JobHistoryParser.TaskAttemptInfo> attempts =
          task.getAllTaskAttempts();
        for (JobHistoryParser.TaskAttemptInfo attempt : attempts.values()) {
          if (attempt.getTaskStatus().
              equals(TaskStatus.State.SUCCEEDED.toString())) {
            long avgFinishTime = (attempt.getFinishTime() -
                attempt.getStartTime());
            if (attempt.getTaskType().equals(TaskType.MAP)) {
              mapTasks[mapIndex++] = attempt; 
              avgMapTime += avgFinishTime;
            } else if (attempt.getTaskType().equals(TaskType.REDUCE)) {
              reduceTasks[reduceIndex++] = attempt;
              avgShuffleTime += (attempt.getShuffleFinishTime() - 
                  attempt.getStartTime());
              avgReduceTime += (attempt.getFinishTime() -
                  attempt.getShuffleFinishTime());
            }
            break;
          }
        }
      }
      if (succeededMaps > 0) {
        avgMapTime /= succeededMaps;
      }
      if (succeededReduces > 0) {
        avgReduceTime /= succeededReduces;
        avgShuffleTime /= succeededReduces;
      }
    }
  }

  /**
   * Utility to filter out events based on the task status
   */
  public static class FilteredJob {
    
    private Map<String, Set<TaskID>> badNodesToFilteredTasks =
      new HashMap<String, Set<TaskID>>();
    
    private String filter;
    
    /** Get the map of the filtered tasks */
    public Map<String, Set<TaskID>> getFilteredMap() {
      return badNodesToFilteredTasks;
    }
    
    /** Get the current filter */
    public String getFilter() { return filter; }
    
    /** Apply the filter (status) on the parsed job and generate summary */
    public FilteredJob(JobInfo job, String status) {

      filter = status;
      
      Map<TaskID, JobHistoryParser.TaskInfo> tasks = job.getAllTasks();

      for (JobHistoryParser.TaskInfo task : tasks.values()) {
        Map<TaskAttemptID, JobHistoryParser.TaskAttemptInfo> attempts =
          task.getAllTaskAttempts();
        for (JobHistoryParser.TaskAttemptInfo attempt : attempts.values()) {
          if (attempt.getTaskStatus().equals(status)) {
            String hostname = attempt.getHostname();
            TaskID id = attempt.getAttemptId().getTaskID();

            Set<TaskID> set = badNodesToFilteredTasks.get(hostname);

            if (set == null) {
              set = new TreeSet<TaskID>();
              set.add(id);
              badNodesToFilteredTasks.put(hostname, set);
            }else{
              set.add(id);
            }
          }
        }
      }
    }
  }
}

相关信息

hadoop 源码目录

相关文章

hadoop AMStartedEvent 源码

hadoop AvroArrayUtils 源码

hadoop EventReader 源码

hadoop EventWriter 源码

hadoop HistoryEvent 源码

hadoop HistoryEventHandler 源码

hadoop HistoryViewerPrinter 源码

hadoop HumanReadableHistoryViewerPrinter 源码

hadoop JSONHistoryViewerPrinter 源码

hadoop JobFinishedEvent 源码

0  赞