Package org.apache.hadoop.hdfs.server.protocol

Examples of org.apache.hadoop.hdfs.server.protocol.NamenodeProtocols.saveNamespace()

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    namenode.getNamesystem().mkdirs("/test",
        new PermissionStatus("hairong", null, FsPermission.getDefault()), true);
    NamenodeProtocols nnRpc = namenode.getRpcServer();
    assertTrue(nnRpc.getFileInfo("/test").isDir());
    nnRpc.setSafeMode(SafeModeAction.SAFEMODE_ENTER, false);
    nnRpc.saveNamespace();
    namenode.stop();
    namenode.join();

    // compress image using default codec
    LOG.info("Read an uncomressed image and store it compressed using default codec.");
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  private void checkNameSpace(Configuration conf) throws IOException {
    NameNode namenode = new NameNode(conf);
    NamenodeProtocols nnRpc = namenode.getRpcServer();
    assertTrue(nnRpc.getFileInfo("/test").isDir());
    nnRpc.setSafeMode(SafeModeAction.SAFEMODE_ENTER, false);
    nnRpc.saveNamespace();
    namenode.stop();
    namenode.join();
  }
 
  @Test
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      // Now primary NN saves namespace 3 times
      NamenodeProtocols nn = cluster.getNameNodeRpc();
      nn.setSafeMode(SafeModeAction.SAFEMODE_ENTER, false);
      for (int i = 0; i < 3; i++) {
        nn.saveNamespace();
      }
      nn.setSafeMode(SafeModeAction.SAFEMODE_LEAVE, false);
     
      // Now the secondary tries to checkpoint again with its
      // old image in memory.
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      // Now primary NN saves namespace 3 times
      NamenodeProtocols nn = cluster.getNameNodeRpc();
      nn.setSafeMode(SafeModeAction.SAFEMODE_ENTER);
      for (int i = 0; i < 3; i++) {
        nn.saveNamespace();
      }
      nn.setSafeMode(SafeModeAction.SAFEMODE_LEAVE);
     
      // Now the secondary tries to checkpoint again with its
      // old image in memory.
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    namenode.getNamesystem().mkdirs("/test",
        new PermissionStatus("hairong", null, FsPermission.getDefault()), true);
    NamenodeProtocols nnRpc = namenode.getRpcServer();
    assertTrue(nnRpc.getFileInfo("/test").isDir());
    nnRpc.setSafeMode(SafeModeAction.SAFEMODE_ENTER);
    nnRpc.saveNamespace();
    namenode.stop();
    namenode.join();

    // compress image using default codec
    LOG.info("Read an uncomressed image and store it compressed using default codec.");
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  private void checkNameSpace(Configuration conf) throws IOException {
    NameNode namenode = new NameNode(conf);
    NamenodeProtocols nnRpc = namenode.getRpcServer();
    assertTrue(nnRpc.getFileInfo("/test").isDir());
    nnRpc.setSafeMode(SafeModeAction.SAFEMODE_ENTER);
    nnRpc.saveNamespace();
    namenode.stop();
    namenode.join();
  }
 
  @Test
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      writeFile(fs, new Path(baseDir, "file1"), buffer, bufferSize);
      writeFile(fs, new Path(baseDir, "file2"), buffer, bufferSize);
     
      // save image
      namenode.setSafeMode(SafeModeAction.SAFEMODE_ENTER);
      namenode.saveNamespace();
      namenode.setSafeMode(SafeModeAction.SAFEMODE_LEAVE);
     
      // write more files
      writeFile(fs, new Path(baseDir, "file3"), buffer, bufferSize);
      writeFile(fs, new Path(baseDir, "file4"), buffer, bufferSize);
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      // Now primary NN saves namespace 3 times
      NamenodeProtocols nn = cluster.getNameNodeRpc();
      nn.setSafeMode(SafeModeAction.SAFEMODE_ENTER);
      for (int i = 0; i < 3; i++) {
        nn.saveNamespace();
      }
      nn.setSafeMode(SafeModeAction.SAFEMODE_LEAVE);
     
      // Now the secondary tries to checkpoint again with its
      // old image in memory.
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      // Now primary NN saves namespace 3 times
      NamenodeProtocols nn = cluster.getNameNodeRpc();
      nn.setSafeMode(SafeModeAction.SAFEMODE_ENTER, false);
      for (int i = 0; i < 3; i++) {
        nn.saveNamespace();
      }
      nn.setSafeMode(SafeModeAction.SAFEMODE_LEAVE, false);
     
      // Now the secondary tries to checkpoint again with its
      // old image in memory.
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      // Now primary NN saves namespace 3 times
      NamenodeProtocols nn = cluster.getNameNodeRpc();
      nn.setSafeMode(SafeModeAction.SAFEMODE_ENTER, false);
      for (int i = 0; i < 3; i++) {
        nn.saveNamespace();
      }
      nn.setSafeMode(SafeModeAction.SAFEMODE_LEAVE, false);
     
      // Now the secondary tries to checkpoint again with its
      // old image in memory.
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