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


    // 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()));
    assertTrue(existsInDiffReport(entries, DiffType.CREATE, sub2.getName()
        + "/" + sub2file2.getName()));
    assertTrue(existsInDiffReport(entries, DiffType.DELETE, sub2.getName()
        + "/" + sub2file1.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(3, entries.size());
    assertTrue(existsInDiffReport(entries, DiffType.MODIFY, ""));
    assertTrue(existsInDiffReport(entries, DiffType.CREATE, sub3.getName()));
    assertTrue(existsInDiffReport(entries, DiffType.DELETE, sub2.getName()));
  }

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

  @Override
  public GetSnapshotDiffReportResponseProto getSnapshotDiffReport(
      RpcController controller, GetSnapshotDiffReportRequestProto request)
      throws ServiceException {
    try {
      SnapshotDiffReport report = server.getSnapshotDiffReport(
          request.getSnapshotRoot(), request.getFromSnapshot(),
          request.getToSnapshot());
      return GetSnapshotDiffReportResponseProto.newBuilder()
          .setDiffReport(PBHelper.convert(report)).build();
    } catch (IOException e) {

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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

  }


  @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

    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

    }
    
    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

  @Override
  public GetSnapshotDiffReportResponseProto getSnapshotDiffReport(
      RpcController controller, GetSnapshotDiffReportRequestProto request)
      throws ServiceException {
    try {
      SnapshotDiffReport report = server.getSnapshotDiffReport(
          request.getSnapshotRoot(), request.getFromSnapshot(),
          request.getToSnapshot());
      return GetSnapshotDiffReportResponseProto.newBuilder()
          .setDiffReport(PBHelper.convert(report)).build();
    } catch (IOException e) {

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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

  }


  @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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