Package org.apache.hadoop.hdfs.server.namenode

Examples of org.apache.hadoop.hdfs.server.namenode.INodesInPath

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   * Set the given directory as a snapshottable directory.
   * If the path is already a snapshottable directory, update the quota.
   */
  public void setSnapshottable(final String path, boolean checkNestedSnapshottable)
      throws IOException {
    final INodesInPath iip = fsdir.getINodesInPath4Write(path);
    final INodeDirectory d = INodeDirectory.valueOf(iip.getLastINode(), path);
    if (checkNestedSnapshottable) {
      checkNestedSnapshottable(d, path);
    }


    final INodeDirectorySnapshottable s;
    if (d.isSnapshottable()) {
      //The directory is already a snapshottable directory.
      s = (INodeDirectorySnapshottable)d;
      s.setSnapshotQuota(INodeDirectorySnapshottable.SNAPSHOT_LIMIT);
    } else {
      s = d.replaceSelf4INodeDirectorySnapshottable(iip.getLatestSnapshotId(),
          fsdir.getINodeMap());
    }
    addSnapshottable(s);
  }
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   * Set the given snapshottable directory to non-snapshottable.
   *
   * @throws SnapshotException if there are snapshots in the directory.
   */
  public void resetSnapshottable(final String path) throws IOException {
    final INodesInPath iip = fsdir.getINodesInPath4Write(path);
    final INodeDirectory d = INodeDirectory.valueOf(iip.getLastINode(), path);
    if (!d.isSnapshottable()) {
      // the directory is already non-snapshottable
      return;
    }
    final INodeDirectorySnapshottable s = (INodeDirectorySnapshottable) d;
    if (s.getNumSnapshots() > 0) {
      throw new SnapshotException("The directory " + path + " has snapshot(s). "
          + "Please redo the operation after removing all the snapshots.");
    }

    if (s == fsdir.getRoot()) {
      s.setSnapshotQuota(0);
    } else {
      s.replaceSelf(iip.getLatestSnapshotId(), fsdir.getINodeMap());
    }
    removeSnapshottable(s);
  }
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  *           Throw IOException when the given path does not lead to an
  *           existing snapshottable directory.
  */
  public INodeDirectorySnapshottable getSnapshottableRoot(final String path
      ) throws IOException {
    final INodesInPath i = fsdir.getINodesInPath4Write(path);
    return INodeDirectorySnapshottable.valueOf(i.getLastINode(), path);
  }
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          Collections.<DiffReportEntry> emptyList());
    }

    // Find the source root directory path where the snapshots were taken.
    // All the check for path has been included in the valueOf method.
    INodesInPath inodesInPath = fsdir.getINodesInPath4Write(path.toString());
    final INodeDirectorySnapshottable snapshotRoot = INodeDirectorySnapshottable
        .valueOf(inodesInPath.getLastINode(), path);

    final SnapshotDiffInfo diffs = snapshotRoot.computeDiff(from, to);
    return diffs != null ? diffs.generateReport() : new SnapshotDiffReport(
        path, from, to, Collections.<DiffReportEntry> emptyList());
  }
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   * Set the given directory as a snapshottable directory.
   * If the path is already a snapshottable directory, update the quota.
   */
  public void setSnapshottable(final String path, boolean checkNestedSnapshottable)
      throws IOException {
    final INodesInPath iip = fsdir.getINodesInPath4Write(path);
    final INodeDirectory d = INodeDirectory.valueOf(iip.getLastINode(), path);
    if (checkNestedSnapshottable) {
      checkNestedSnapshottable(d, path);
    }


    final INodeDirectorySnapshottable s;
    if (d.isSnapshottable()) {
      //The directory is already a snapshottable directory.
      s = (INodeDirectorySnapshottable)d;
      s.setSnapshotQuota(INodeDirectorySnapshottable.SNAPSHOT_LIMIT);
    } else {
      s = d.replaceSelf4INodeDirectorySnapshottable(iip.getLatestSnapshot(),
          fsdir.getINodeMap());
    }
    addSnapshottable(s);
  }
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   * Set the given snapshottable directory to non-snapshottable.
   *
   * @throws SnapshotException if there are snapshots in the directory.
   */
  public void resetSnapshottable(final String path) throws IOException {
    final INodesInPath iip = fsdir.getINodesInPath4Write(path);
    final INodeDirectory d = INodeDirectory.valueOf(iip.getLastINode(), path);
    if (!d.isSnapshottable()) {
      // the directory is already non-snapshottable
      return;
    }
    final INodeDirectorySnapshottable s = (INodeDirectorySnapshottable) d;
    if (s.getNumSnapshots() > 0) {
      throw new SnapshotException("The directory " + path + " has snapshot(s). "
          + "Please redo the operation after removing all the snapshots.");
    }

    if (s == fsdir.getRoot()) {
      s.setSnapshotQuota(0);
    } else {
      s.replaceSelf(iip.getLatestSnapshot(), fsdir.getINodeMap());
    }
    removeSnapshottable(s);
  }
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  *           Throw IOException when the given path does not lead to an
  *           existing snapshottable directory.
  */
  public INodeDirectorySnapshottable getSnapshottableRoot(final String path
      ) throws IOException {
    final INodesInPath i = fsdir.getINodesInPath4Write(path);
    return INodeDirectorySnapshottable.valueOf(i.getLastINode(), path);
  }
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      return null;
    }

    // Find the source root directory path where the snapshots were taken.
    // All the check for path has been included in the valueOf method.
    INodesInPath inodesInPath = fsdir.getINodesInPath4Write(path.toString());
    final INodeDirectorySnapshottable snapshotRoot = INodeDirectorySnapshottable
        .valueOf(inodesInPath.getLastINode(), path);
   
    return snapshotRoot.computeDiff(from, to);
  }
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    // First check the getBlockReplication for the INode of the currentFile
    final INodeFile inodeOfCurrentFile = getINodeFile(currentFile);
    assertEquals(expectedBlockRep, inodeOfCurrentFile.getBlockReplication());
    // Then check replication for every snapshot
    for (Path ss : snapshotRepMap.keySet()) {
      final INodesInPath iip = fsdir.getLastINodeInPath(ss.toString());
      final INodeFile ssInode = (INodeFile)iip.getLastINode();
      // The replication number derived from the
      // INodeFileWithLink#getBlockReplication should always == expectedBlockRep
      assertEquals(expectedBlockRep, ssInode.getBlockReplication());
      // Also check the number derived from INodeFile#getFileReplication
      assertEquals(snapshotRepMap.get(ss).shortValue(),
          ssInode.getFileReplication(iip.getPathSnapshot()));
    }
  }
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   * Set the given directory as a snapshottable directory.
   * If the path is already a snapshottable directory, update the quota.
   */
  public void setSnapshottable(final String path, boolean checkNestedSnapshottable)
      throws IOException {
    final INodesInPath iip = fsdir.getINodesInPath4Write(path);
    final INodeDirectory d = INodeDirectory.valueOf(iip.getLastINode(), path);
    if (checkNestedSnapshottable) {
      checkNestedSnapshottable(d, path);
    }


    final INodeDirectorySnapshottable s;
    if (d.isSnapshottable()) {
      //The directory is already a snapshottable directory.
      s = (INodeDirectorySnapshottable)d;
      s.setSnapshotQuota(INodeDirectorySnapshottable.SNAPSHOT_LIMIT);
    } else {
      s = d.replaceSelf4INodeDirectorySnapshottable(iip.getLatestSnapshot(),
          fsdir.getINodeMap());
    }
    addSnapshottable(s);
  }
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Related Classes of org.apache.hadoop.hdfs.server.namenode.INodesInPath

  • org.apache.hadoop.hdfs.server.namenode.snapshot.DirectoryWithSnapshotFeature
  • org.apache.hadoop.hdfs.server.namenode.snapshot.Snapshot
  • org.apache.hadoop.hdfs.server.namenode.snapshot.SnapshotManager
  • org.apache.hadoop.hdfs.server.namenode.snapshot.TestSnapshotReplication
  • org.apache.hadoop.hdfs.protocol.UnresolvedPathException
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