Java Code Examples for org.apache.hadoop.hdfs.server.namenode.INodeDirectory#addSnapshottableFeature()

The following examples show how to use org.apache.hadoop.hdfs.server.namenode.INodeDirectory#addSnapshottableFeature() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: SnapshotManager.java    From hadoop with Apache License 2.0 6 votes vote down vote up 
/**
 * 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);
  }

  if (d.isSnapshottable()) {
    //The directory is already a snapshottable directory.
    d.setSnapshotQuota(DirectorySnapshottableFeature.SNAPSHOT_LIMIT);
  } else {
    d.addSnapshottableFeature();
  }
  addSnapshottable(d);
}
Example 2
Source File: FSImageFormatPBSnapshot.java    From hadoop with Apache License 2.0 6 votes vote down vote up 
/**
 * Load the snapshots section from fsimage. Also add snapshottable feature
 * to snapshottable directories.
 */
public void loadSnapshotSection(InputStream in) throws IOException {
  SnapshotManager sm = fsn.getSnapshotManager();
  SnapshotSection section = SnapshotSection.parseDelimitedFrom(in);
  int snum = section.getNumSnapshots();
  sm.setNumSnapshots(snum);
  sm.setSnapshotCounter(section.getSnapshotCounter());
  for (long sdirId : section.getSnapshottableDirList()) {
    INodeDirectory dir = fsDir.getInode(sdirId).asDirectory();
    if (!dir.isSnapshottable()) {
      dir.addSnapshottableFeature();
    } else {
      // dir is root, and admin set root to snapshottable before
      dir.setSnapshotQuota(DirectorySnapshottableFeature.SNAPSHOT_LIMIT);
    }
    sm.addSnapshottable(dir);
  }
  loadSnapshots(in, snum);
}
Example 3
Source File: SnapshotManager.java    From big-c with Apache License 2.0 6 votes vote down vote up 
/**
 * 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);
  }

  if (d.isSnapshottable()) {
    //The directory is already a snapshottable directory.
    d.setSnapshotQuota(DirectorySnapshottableFeature.SNAPSHOT_LIMIT);
  } else {
    d.addSnapshottableFeature();
  }
  addSnapshottable(d);
}
Example 4
Source File: FSImageFormatPBSnapshot.java    From big-c with Apache License 2.0 6 votes vote down vote up 
/**
 * Load the snapshots section from fsimage. Also add snapshottable feature
 * to snapshottable directories.
 */
public void loadSnapshotSection(InputStream in) throws IOException {
  SnapshotManager sm = fsn.getSnapshotManager();
  SnapshotSection section = SnapshotSection.parseDelimitedFrom(in);
  int snum = section.getNumSnapshots();
  sm.setNumSnapshots(snum);
  sm.setSnapshotCounter(section.getSnapshotCounter());
  for (long sdirId : section.getSnapshottableDirList()) {
    INodeDirectory dir = fsDir.getInode(sdirId).asDirectory();
    if (!dir.isSnapshottable()) {
      dir.addSnapshottableFeature();
    } else {
      // dir is root, and admin set root to snapshottable before
      dir.setSnapshotQuota(DirectorySnapshottableFeature.SNAPSHOT_LIMIT);
    }
    sm.addSnapshottable(dir);
  }
  loadSnapshots(in, snum);
}
Example 5
Source File: TestNestedSnapshots.java    From hadoop with Apache License 2.0 5 votes vote down vote up 
/**
 * Test {@link Snapshot#ID_COMPARATOR}.
 */
@Test (timeout=300000)
public void testIdCmp() {
  final PermissionStatus perm = PermissionStatus.createImmutable(
      "user", "group", FsPermission.createImmutable((short)0));
  final INodeDirectory snapshottable = new INodeDirectory(0,
      DFSUtil.string2Bytes("foo"), perm, 0L);
  snapshottable.addSnapshottableFeature();
  final Snapshot[] snapshots = {
    new Snapshot(1, "s1", snapshottable),
    new Snapshot(1, "s1", snapshottable),
    new Snapshot(2, "s2", snapshottable),
    new Snapshot(2, "s2", snapshottable),
  };

  Assert.assertEquals(0, Snapshot.ID_COMPARATOR.compare(null, null));
  for(Snapshot s : snapshots) {
    Assert.assertTrue(Snapshot.ID_COMPARATOR.compare(null, s) > 0);
    Assert.assertTrue(Snapshot.ID_COMPARATOR.compare(s, null) < 0);
    
    for(Snapshot t : snapshots) {
      final int expected = s.getRoot().getLocalName().compareTo(
          t.getRoot().getLocalName());
      final int computed = Snapshot.ID_COMPARATOR.compare(s, t);
      Assert.assertEquals(expected > 0, computed > 0);
      Assert.assertEquals(expected == 0, computed == 0);
      Assert.assertEquals(expected < 0, computed < 0);
    }
  }
}
Example 6
Source File: TestNestedSnapshots.java    From big-c with Apache License 2.0 5 votes vote down vote up 
/**
 * Test {@link Snapshot#ID_COMPARATOR}.
 */
@Test (timeout=300000)
public void testIdCmp() {
  final PermissionStatus perm = PermissionStatus.createImmutable(
      "user", "group", FsPermission.createImmutable((short)0));
  final INodeDirectory snapshottable = new INodeDirectory(0,
      DFSUtil.string2Bytes("foo"), perm, 0L);
  snapshottable.addSnapshottableFeature();
  final Snapshot[] snapshots = {
    new Snapshot(1, "s1", snapshottable),
    new Snapshot(1, "s1", snapshottable),
    new Snapshot(2, "s2", snapshottable),
    new Snapshot(2, "s2", snapshottable),
  };

  Assert.assertEquals(0, Snapshot.ID_COMPARATOR.compare(null, null));
  for(Snapshot s : snapshots) {
    Assert.assertTrue(Snapshot.ID_COMPARATOR.compare(null, s) > 0);
    Assert.assertTrue(Snapshot.ID_COMPARATOR.compare(s, null) < 0);
    
    for(Snapshot t : snapshots) {
      final int expected = s.getRoot().getLocalName().compareTo(
          t.getRoot().getLocalName());
      final int computed = Snapshot.ID_COMPARATOR.compare(s, t);
      Assert.assertEquals(expected > 0, computed > 0);
      Assert.assertEquals(expected == 0, computed == 0);
      Assert.assertEquals(expected < 0, computed < 0);
    }
  }
}