Examples of SnapshotDiffReport

org.apache.hadoop.hdfs.protocol.SnapshotDiffReport
This class represents to end users the difference between two snapshots of the same directory, or the difference between a snapshot of the directory and its current state. Instead of capturing all the details of the diff, this class only lists where the changes happened and their types.

Examples of org.apache.hadoop.hdfs.protocol.SnapshotDiffReport

  }


  @Override
  public SnapshotDiffReport getSnapshotDiffReport(String snapshotRoot,
      String earlierSnapshotName, String laterSnapshotName) throws IOException {
    SnapshotDiffReport report = namesystem.getSnapshotDiffReport(snapshotRoot,
        earlierSnapshotName, laterSnapshotName);
    metrics.incrSnapshotDiffReportOps();
    return report;
  }

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Examples of org.apache.hadoop.hdfs.protocol.SnapshotDiffReport

   *         and labeled as M/-/+/R respectively. 
   * @throws IOException
   */
  SnapshotDiffReport getSnapshotDiffReport(String path,
      String fromSnapshot, String toSnapshot) throws IOException {
    SnapshotDiffReport diffs;
    checkOperation(OperationCategory.READ);
    final FSPermissionChecker pc = getPermissionChecker();
    readLock();
    try {
      checkOperation(OperationCategory.READ);

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Examples of org.apache.hadoop.hdfs.protocol.SnapshotDiffReport

    }
    
    if (auditLog.isInfoEnabled() && isExternalInvocation()) {
      logAuditEvent(true, "computeSnapshotDiff", null, null, null);
    }
    return diffs != null ? diffs.generateReport() : new SnapshotDiffReport(
        path, fromSnapshot, toSnapshot,
        Collections.<DiffReportEntry> emptyList());
  }

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Examples of org.apache.hadoop.hdfs.protocol.SnapshotDiffReport

    for (SnapshotDiffReportEntryProto entryProto : list) {
      DiffReportEntry entry = convert(entryProto);
      if (entry != null)
        entries.add(entry);
    }
    return new SnapshotDiffReport(snapshotDir, fromSnapshot, toSnapshot,
        entries);
  }

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Examples of org.apache.hadoop.hdfs.protocol.SnapshotDiffReport

    hdfs.createSnapshot(sub1, snap1);
    DFSTestUtil.createFile(hdfs, file1, BLOCKSIZE, REPL, SEED);
    hdfs.rename(file1, file2);


    // Query the diff report and make sure it looks as expected.
    SnapshotDiffReport diffReport = hdfs.getSnapshotDiffReport(sub1, snap1, "");
    List<DiffReportEntry> entries = diffReport.getDiffList();
    assertTrue(entries.size() == 2);
    assertTrue(existsInDiffReport(entries, DiffType.MODIFY, "", null));
    assertTrue(existsInDiffReport(entries, DiffType.CREATE, file2.getName(),
        null));
  }

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Examples of org.apache.hadoop.hdfs.protocol.SnapshotDiffReport

    DFSTestUtil.createFile(hdfs, file1, BLOCKSIZE, REPL, SEED);
    hdfs.createSnapshot(sub1, snap1);
    hdfs.rename(file1, file2);


    // Query the diff report and make sure it looks as expected.
    SnapshotDiffReport diffReport = hdfs.getSnapshotDiffReport(sub1, snap1, "");
    System.out.println("DiffList is " + diffReport.toString());
    List<DiffReportEntry> entries = diffReport.getDiffList();
    assertTrue(entries.size() == 2);
    assertTrue(existsInDiffReport(entries, DiffType.MODIFY, "", null));
    assertTrue(existsInDiffReport(entries, DiffType.RENAME, file1.getName(),
        file2.getName()));
  }

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Examples of org.apache.hadoop.hdfs.protocol.SnapshotDiffReport

    hdfs.rename(file1, file2);
    
    hdfs.createSnapshot(sub1, snap2);
    hdfs.rename(file2, file3);


    SnapshotDiffReport diffReport;
    
    // Query the diff report and make sure it looks as expected.
    diffReport = hdfs.getSnapshotDiffReport(sub1, snap1, snap2);
    LOG.info("DiffList is " + diffReport.toString());
    List<DiffReportEntry> entries = diffReport.getDiffList();
    assertTrue(entries.size() == 2);
    assertTrue(existsInDiffReport(entries, DiffType.MODIFY, "", null));
    assertTrue(existsInDiffReport(entries, DiffType.RENAME, file1.getName(),
        file2.getName()));
    
    diffReport = hdfs.getSnapshotDiffReport(sub1, snap2, "");
    LOG.info("DiffList is " + diffReport.toString());
    entries = diffReport.getDiffList();
    assertTrue(entries.size() == 2);
    assertTrue(existsInDiffReport(entries, DiffType.MODIFY, "", null));
    assertTrue(existsInDiffReport(entries, DiffType.RENAME, file2.getName(),
        file3.getName()));
    
    diffReport = hdfs.getSnapshotDiffReport(sub1, snap1, "");
    LOG.info("DiffList is " + diffReport.toString());
    entries = diffReport.getDiffList();
    assertTrue(entries.size() == 2);
    assertTrue(existsInDiffReport(entries, DiffType.MODIFY, "", null));
    assertTrue(existsInDiffReport(entries, DiffType.RENAME, file1.getName(),
        file3.getName()));
  }

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Examples of org.apache.hadoop.hdfs.protocol.SnapshotDiffReport


    // Rename the file in the subdirectory.
    hdfs.rename(sub2file1, sub2file2);


    // Query the diff report and make sure it looks as expected.
    SnapshotDiffReport diffReport = hdfs.getSnapshotDiffReport(sub1, sub1snap1,
        "");
    LOG.info("DiffList is \n\"" + diffReport.toString() + "\"");
    List<DiffReportEntry> entries = diffReport.getDiffList();
    assertTrue(existsInDiffReport(entries, DiffType.MODIFY, sub2.getName(),
        null));
    assertTrue(existsInDiffReport(entries, DiffType.RENAME, sub2.getName()
        + "/" + sub2file1.getName(), sub2.getName() + "/" + sub2file2.getName()));
  }

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Examples of org.apache.hadoop.hdfs.protocol.SnapshotDiffReport

    
    // First rename the sub-directory.
    hdfs.rename(sub2, sub3);
    
    // Query the diff report and make sure it looks as expected.
    SnapshotDiffReport diffReport = hdfs.getSnapshotDiffReport(sub1, sub1snap1,
        "");
    LOG.info("DiffList is \n\"" + diffReport.toString() + "\"");
    List<DiffReportEntry> entries = diffReport.getDiffList();
    assertEquals(2, entries.size());
    assertTrue(existsInDiffReport(entries, DiffType.MODIFY, "", null));
    assertTrue(existsInDiffReport(entries, DiffType.RENAME, sub2.getName(),
        sub3.getName()));
  }

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Examples of org.apache.hadoop.hdfs.protocol.SnapshotDiffReport

    // the original file1
    final Path file1InNewDir = new Path(newDir, "file1");
    hdfs.rename(file3InFoo, file1InNewDir, Rename.OVERWRITE);
    SnapshotTestHelper.createSnapshot(hdfs, root, "s1");


    SnapshotDiffReport report = hdfs.getSnapshotDiffReport(root, "s0", "s1");
    LOG.info("DiffList is \n\"" + report.toString() + "\"");
    List<DiffReportEntry> entries = report.getDiffList();
    assertEquals(7, entries.size());
    assertTrue(existsInDiffReport(entries, DiffType.MODIFY, "", null));
    assertTrue(existsInDiffReport(entries, DiffType.MODIFY, foo.getName(), null));
    assertTrue(existsInDiffReport(entries, DiffType.MODIFY, bar.getName(), null));
    assertTrue(existsInDiffReport(entries, DiffType.DELETE, "foo/file1", null));

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