Package org.apache.hadoop.hdfs

Examples of org.apache.hadoop.hdfs.DistributedFileSystem.createSnapshot()

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      SnapshotManager sm = cluster.getNamesystem().getSnapshotManager();
      DistributedFileSystem dfs = (DistributedFileSystem) cluster.getFileSystem();
      dfs.mkdirs(path);
      dfs.allowSnapshot(path);
      dfs.createSnapshot(path);

      MBeanServer mbs = ManagementFactory.getPlatformMBeanServer();
      ObjectName mxbeanName = new ObjectName(
          "Hadoop:service=NameNode,name=SnapshotInfo");
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      final String fileName = "/srcdat";
      DistributedFileSystem hdfs = cluster.getFileSystem();
      Path file1 = new Path(fileName);
      DFSTestUtil.createFile(hdfs, file1, 1024, (short) 1, 1000L);
      hdfs.allowSnapshot(new Path("/"));
      hdfs.createSnapshot(new Path("/"), "mySnapShot");
      runFsck = runFsck(conf, 0, true, "/", "-includeSnapshots", "-files");
      assertTrue(runFsck.contains("/.snapshot/mySnapShot/srcdat"));
      runFsck = runFsck(conf, 0, true, "/", "-files");
      assertFalse(runFsck.contains("mySnapShot"));
    } finally {
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    // OP_DISALLOW_SNAPSHOT 30
    dfs.disallowSnapshot(pathDirectoryMkdir);
    // OP_CREATE_SNAPSHOT 26
    String ssName = "snapshot1";
    dfs.allowSnapshot(pathDirectoryMkdir);
    dfs.createSnapshot(pathDirectoryMkdir, ssName);
    // OP_RENAME_SNAPSHOT 28
    String ssNewName = "snapshot2";
    dfs.renameSnapshot(pathDirectoryMkdir, ssName, ssNewName);
    // OP_DELETE_SNAPSHOT 27
    dfs.deleteSnapshot(pathDirectoryMkdir, ssNewName);
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      final String fileName = "/srcdat";
      DistributedFileSystem hdfs = cluster.getFileSystem();
      Path file1 = new Path(fileName);
      DFSTestUtil.createFile(hdfs, file1, 1024, (short) 1, 1000L);
      hdfs.allowSnapshot(new Path("/"));
      hdfs.createSnapshot(new Path("/"), "mySnapShot");
      runFsck = runFsck(conf, 0, true, "/", "-includeSnapshots", "-files");
      assertTrue(runFsck.contains("/.snapshot/mySnapShot/srcdat"));
      runFsck = runFsck(conf, 0, true, "/", "-files");
      assertFalse(runFsck.contains("mySnapShot"));
    } finally {
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