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

Class org.apache.hadoop.hdfs.MiniDFSCluster

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

org.apache.hadoop.hdfs.MiniDFSCluster.shutdown()
Shut down the servers that are up.

      }


      secondary.shutdown();
    } finally {
      fileSys.close();
      cluster.shutdown();
    }
  }


  /**
   * Simulate namenode failing to send the whole file

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      //
      writeFile(fileSys, file1, replication);
      checkFile(fileSys, file1, replication);
    } finally {
      fileSys.close();
      cluster.shutdown();
    }
  }
  /**
   * Test different startup scenarios.
   * <p><ol>

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    nn.stop(); nn = null;
    
    // Check that everything starts ok now.
    MiniDFSCluster cluster = new MiniDFSCluster(conf, numDatanodes, false, null);
    cluster.waitActive();
    cluster.shutdown();
  }


  NameNode startNameNode( Configuration conf,
                          String imageDirs,
                          String editsDirs,

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      ErrorSimulator.initializeErrorSimulationEvent(4);
      secondary.doCheckpoint();
      secondary.shutdown();
    } finally {
      fileSys.close();
      cluster.shutdown();
    }


    //
    // Restart cluster and verify that file1 still exist.
    //

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      SecondaryNameNode secondary = startSecondaryNameNode(conf);
      secondary.doCheckpoint();
      secondary.shutdown();
    } finally {
      fileSys.close();
      cluster.shutdown();
    }


    //
    // Restart cluster and verify that file2 exists and
    // file1 does not exist.

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    try {
      // verify that file2 exists
      checkFile(fileSys, file2, replication);
    } finally {
      fileSys.close();
      cluster.shutdown();
    }


    // file2 is left behind.


    testNameNodeImageSendFail(conf);

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      for(File ed : editsDirs) {
        assertTrue(new File(ed, "current/edits").length() == Integer.SIZE/Byte.SIZE);
      }


      // restart cluster and verify file exists
      cluster.shutdown();
      cluster = null;


      cluster = new MiniDFSCluster(conf, numDatanodes, false, null);
      cluster.waitActive();
      fs = (DistributedFileSystem)(cluster.getFileSystem());

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      cluster.waitActive();
      fs = (DistributedFileSystem)(cluster.getFileSystem());
      checkFile(fs, file, replication);
    } finally {
      if(fs != null) fs.close();
      if(cluster!= null) cluster.shutdown();
    }
  }
}

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        System.out.println(line2);
      }
      assertEquals(cacheString + "\t", line);
      assertEquals(cacheString2 + "\t", line2);
    } finally{
      if (dfs != null) { dfs.shutdown(); }
      if (mr != null) { mr.shutdown();}
    }
    
  }

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        line = bread.readLine();
        System.out.println(line);
      }
      assertEquals(cacheString + "\t", line);
    } finally{
      if (dfs != null) { dfs.shutdown(); }
      if (mr != null) { mr.shutdown();}
    }
  }


  public static void main(String[]args) throws Exception

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