Package org.apache.hadoop.mapreduce.filecache

Examples of org.apache.hadoop.mapreduce.filecache.TrackerDistributedCacheManager.newTaskDistributedCacheManager()

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    ClientDistributedCacheManager.determineCacheVisibilities(subConf);
    // ****** End of imitating JobClient code

    // ****** Imitate TaskRunner code.
    TaskDistributedCacheManager handle =
      manager.newTaskDistributedCacheManager(subConf);
    assertNull(null, DistributedCache.getLocalCacheFiles(subConf));
    File workDir = new File(new Path(TEST_ROOT_DIR, "workdir").toString());
    handle.setup(localDirAllocator, workDir, TaskTracker
        .getPrivateDistributedCacheDir(userName),
        TaskTracker.getPublicDistributedCacheDir());
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    // running a task of the same job on another TaskTracker which has never
    // initialized the cache
    TrackerDistributedCacheManager manager2 =
      new TrackerDistributedCacheManager(myConf, taskController);
    TaskDistributedCacheManager handle2 =
      manager2.newTaskDistributedCacheManager(subConf);
    File workDir2 = new File(new Path(TEST_ROOT_DIR, "workdir2").toString());
    th = null;
    try {
      handle2.setup(localDirAllocator, workDir2, TaskTracker
          .getPrivateDistributedCacheDir(userName),
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    // ****** Imitate TaskRunner code.
    TrackerDistributedCacheManager manager =
      new TrackerDistributedCacheManager(conf, taskController);
    TaskDistributedCacheManager handle =
      manager.newTaskDistributedCacheManager(subConf);
    assertNull(null, DistributedCache.getLocalCacheFiles(subConf));
    File workDir = new File(new Path(TEST_ROOT_DIR, "workdir").toString());
    handle.setup(localDirAllocator, workDir, TaskTracker
        .getPrivateDistributedCacheDir(userName),
        TaskTracker.getPublicDistributedCacheDir());
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    Configuration conf1 = job1.getConfiguration();
    TrackerDistributedCacheManager.determineTimestamps(conf1);
    TrackerDistributedCacheManager.determineCacheVisibilities(conf1);

    // Task localizing for first job
    TaskDistributedCacheManager handle = manager
        .newTaskDistributedCacheManager(conf1);
    handle.setup(localDirAllocator, workDir, TaskTracker
          .getPrivateDistributedCacheDir(userName),
          TaskTracker.getPublicDistributedCacheDir());
    handle.release();
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    TrackerDistributedCacheManager.determineTimestamps(conf2);
    TrackerDistributedCacheManager.determineCacheVisibilities(conf2);

    // Task localizing for second job
    // localization for the "firstCacheFile" will fail.
    handle = manager.newTaskDistributedCacheManager(conf2);
    Throwable th = null;
    try {
      handle.setup(localDirAllocator, workDir, TaskTracker
          .getPrivateDistributedCacheDir(userName),
          TaskTracker.getPublicDistributedCacheDir());
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    Configuration conf1 = job1.getConfiguration();
    TrackerDistributedCacheManager.determineTimestamps(conf1);
    TrackerDistributedCacheManager.determineCacheVisibilities(conf1);

    // Task localizing for job
    TaskDistributedCacheManager handle = manager
        .newTaskDistributedCacheManager(conf1);
    handle.setup(localDirAllocator, workDir, TaskTracker
          .getPrivateDistributedCacheDir(userName),
          TaskTracker.getPublicDistributedCacheDir());
    TaskDistributedCacheManager.CacheFile c = handle.getCacheFiles().get(0);
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    TrackerDistributedCacheManager.determineCacheVisibilities(subConf);
    // ****** End of imitating JobClient code

    // ****** Imitate TaskRunner code.
    TaskDistributedCacheManager handle =
      manager.newTaskDistributedCacheManager(subConf);
    assertNull(null, DistributedCache.getLocalCacheFiles(subConf));
    File workDir = new File(new Path(TEST_ROOT_DIR, "workdir").toString());
    handle.setup(localDirAllocator, workDir, TaskTracker
        .getPrivateDistributedCacheDir(userName),
        TaskTracker.getPublicDistributedCacheDir());
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    // running a task of the same job on another TaskTracker which has never
    // initialized the cache
    TrackerDistributedCacheManager manager2 =
      new TrackerDistributedCacheManager(myConf, taskController);
    TaskDistributedCacheManager handle2 =
      manager2.newTaskDistributedCacheManager(subConf);
    File workDir2 = new File(new Path(TEST_ROOT_DIR, "workdir2").toString());
    th = null;
    try {
      handle2.setup(localDirAllocator, workDir2, TaskTracker
          .getPrivateDistributedCacheDir(userName),
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