List of unlinkBlock() Examples

Examples of unlinkBlock()

org.apache.hadoop.hdfs.server.datanode.FSDataset.unlinkBlock()
Make a copy of the block if this block is linked to an existing snapshot. This ensures that modifying this block does not modify data in any existing snapshots. @param block Block @param numLinks Unlink if the number of links exceed this value @throws IOException @return - true if the specified block was unlinked or the blockis not in any snapshot.
org.apache.hadoop.hdfs.server.datanode.ReplicaInfo.unlinkBlock()
Remove a hard link by copying the block to a temporary place and then moving it back @param numLinks number of hard links @return true if copy is successful; false if it is already detached or no need to be detached @throws IOException if there is any copy error

Examples of org.apache.hadoop.hdfs.server.datanode.FSDataset.unlinkBlock()

      //
      for (int i = 0; i < blocks.size(); i++) {
        Block b = blocks.get(i).getBlock();
        System.out.println("testCopyOnWrite detaching block " + b);
        assertTrue("Detaching block " + b + " should have returned true",
            dataset.unlinkBlock(b, 1));
      }


      // Since the blocks were already detached earlier, these calls should
      // return false
      //

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Examples of org.apache.hadoop.hdfs.server.datanode.FSDataset.unlinkBlock()

      //
      for (int i = 0; i < blocks.size(); i++) {
        Block b = blocks.get(i).getBlock();
        System.out.println("testCopyOnWrite detaching block " + b);
        assertTrue("Detaching block " + b + " should have returned false",
            !dataset.unlinkBlock(b, 1));
      }


    } finally {
      fs.close();
      cluster.shutdown();

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Examples of org.apache.hadoop.hdfs.server.datanode.FSDataset.unlinkBlock()

      //
      for (int i = 0; i < blocks.size(); i++) {
        ExtendedBlock b = blocks.get(i).getBlock();
        System.out.println("testCopyOnWrite detaching block " + b);
        assertTrue("Detaching block " + b + " should have returned true",
            dataset.unlinkBlock(b, 1));
      }


      // Since the blocks were already detached earlier, these calls should
      // return false
      //

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Examples of org.apache.hadoop.hdfs.server.datanode.FSDataset.unlinkBlock()

      //
      for (int i = 0; i < blocks.size(); i++) {
        ExtendedBlock b = blocks.get(i).getBlock();
        System.out.println("testCopyOnWrite detaching block " + b);
        assertTrue("Detaching block " + b + " should have returned false",
            !dataset.unlinkBlock(b, 1));
      }


    } finally {
      fs.close();
      cluster.shutdown();

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Examples of org.apache.hadoop.hdfs.server.datanode.FSDataset.unlinkBlock()

      //
      for (int i = 0; i < blocks.size(); i++) {
        Block b = blocks.get(i).getBlock();
        System.out.println("testCopyOnWrite detaching block " + b);
        assertTrue("Detaching block " + b + " should have returned true",
            dataset.unlinkBlock(b, 1));
      }


      // Since the blocks were already detached earlier, these calls should
      // return false
      //

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Examples of org.apache.hadoop.hdfs.server.datanode.FSDataset.unlinkBlock()

      //
      for (int i = 0; i < blocks.size(); i++) {
        Block b = blocks.get(i).getBlock();
        System.out.println("testCopyOnWrite detaching block " + b);
        assertTrue("Detaching block " + b + " should have returned false",
            !dataset.unlinkBlock(b, 1));
      }


    } finally {
      fs.close();
      cluster.shutdown();

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Examples of org.apache.hadoop.hdfs.server.datanode.ReplicaInfo.unlinkBlock()

  }


  public static boolean unlinkBlock(FsDatasetSpi<?> fsd,
      ExtendedBlock block, int numLinks) throws IOException {
    final ReplicaInfo info = ((FsDatasetImpl)fsd).getReplicaInfo(block);
    return info.unlinkBlock(numLinks);
  }


  public static ReplicaInfo fetchReplicaInfo (final FsDatasetSpi<?> fsd,
      final String bpid, final long blockId) {
    return ((FsDatasetImpl)fsd).fetchReplicaInfo(bpid, blockId);

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Examples of org.apache.hadoop.hdfs.server.datanode.ReplicaInfo.unlinkBlock()

  }
  
  public static boolean unlinkBlock(FsDatasetSpi<?> fsd,
      ExtendedBlock block, int numLinks) throws IOException {
    final ReplicaInfo info = ((FsDatasetImpl)fsd).getReplicaInfo(block);
    return info.unlinkBlock(numLinks);
  }


  public static ReplicaInfo fetchReplicaInfo (final FsDatasetSpi<?> fsd,
      final String bpid, final long blockId) {
    return ((FsDatasetImpl)fsd).fetchReplicaInfo(bpid, blockId);

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