Package org.apache.hadoop.hdfs.protocol

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

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  }

  @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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   *         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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    }
   
    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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    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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    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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    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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    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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    // 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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    // 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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    // 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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