Package org.apache.hadoop.hdfs

Examples of org.apache.hadoop.hdfs.MiniDFSCluster.transitionToActive()

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    MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf)
      .nnTopology(topology)
      .numDataNodes(0)
      .build();
    try {
      cluster.transitionToActive(activeIndex);
      waitForLogRollInSharedDir(cluster, 3);
    } finally {
      cluster.shutdown();
    }
  }
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      .build();
    FileSystem fs = null;
    try {
      cluster.waitActive();
   
      cluster.transitionToActive(0);
     
      // Make sure conf has the relevant HA configs.
      HATestUtil.setFailoverConfigurations(cluster, conf, "ha-nn-uri-0", 0);
     
      fs = HATestUtil.configureFailoverFs(cluster, conf);
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      fs.mkdirs(new Path("/test2"));
     
      runFsck(conf);
     
      cluster.transitionToStandby(0);
      cluster.transitionToActive(1);
     
      runFsck(conf);
    } finally {
      if (fs != null) {
        fs.close();
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      .build();
    try {
      int sizeWritten = 0;
     
      cluster.waitActive();
      cluster.transitionToActive(0);
      Thread.sleep(500);

      LOG.info("Starting with NN 0 active");
      FileSystem fs = HATestUtil.configureFailoverFs(cluster, conf);
      stm = fs.create(TEST_PATH);
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      .nnTopology(MiniDFSNNTopology.simpleHATopology())
      .numDataNodes(5)
      .build();
    try {
      cluster.waitActive();
      cluster.transitionToActive(0);
      Thread.sleep(500);

      LOG.info("Starting with NN 0 active");
      FileSystem fs = HATestUtil.configureFailoverFs(cluster, conf);
      stm = fs.create(TEST_PATH);
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      AppendTestUtil.write(stm, BLOCK_AND_A_HALF, BLOCK_AND_A_HALF);
      stm.hflush();
     
      LOG.info("Failing back to NN 0");
      cluster.transitionToStandby(1);
      cluster.transitionToActive(0);
     
      cluster.stopDataNode(1);
     
      AppendTestUtil.write(stm, BLOCK_AND_A_HALF*2, BLOCK_AND_A_HALF);
      stm.hflush();
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      .nnTopology(MiniDFSNNTopology.simpleHATopology())
      .numDataNodes(3)
      .build();
    try {
      cluster.waitActive();
      cluster.transitionToActive(0);
      Thread.sleep(500);

      LOG.info("Starting with NN 0 active");
      FileSystem fs = HATestUtil.configureFailoverFs(cluster, conf);
      stm = fs.create(TEST_PATH);
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      stm.hflush();
     
      LOG.info("Failing over to NN 1");
     
      cluster.transitionToStandby(0);
      cluster.transitionToActive(1);
     
      assertTrue(fs.exists(TEST_PATH));

      FileSystem fsOtherUser = createFsAsOtherUser(cluster, conf);
      loopRecoverLease(fsOtherUser, TEST_PATH);
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      AppendTestUtil.check(fs, TEST_PATH, BLOCK_AND_A_HALF);
     
      // Fail back to ensure that the block locations weren't lost on the
      // original node.
      cluster.transitionToStandby(1);
      cluster.transitionToActive(0);
      AppendTestUtil.check(fs, TEST_PATH, BLOCK_AND_A_HALF);     
    } finally {
      IOUtils.closeStream(stm);
      cluster.shutdown();
    }
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      .nnTopology(MiniDFSNNTopology.simpleHATopology())
      .numDataNodes(3)
      .build();
    try {
      cluster.waitActive();
      cluster.transitionToActive(0);
      Thread.sleep(500);

      LOG.info("Starting with NN 0 active");
      FileSystem fs = HATestUtil.configureFailoverFs(cluster, conf);
      stm = fs.create(TEST_PATH);
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