Java Code Examples for org.apache.hadoop.hdfs.protocol.BlockListAsLongs.BlockReportReplica#getNumBytes()

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Example 1

Source File: BlockListAsLongs.java From hadoop with Apache License 2.0

4 votes

@Override
public long[] getBlockListAsLongs() {
  // terribly inefficient but only occurs if server tries to transcode
  // an undecoded buffer into longs - ie. it will never happen but let's
  // handle it anyway
  if (numFinalized == -1) {
    int n = 0;
    for (Replica replica : this) {
      if (replica.getState() == ReplicaState.FINALIZED) {
        n++;
      }
    }
    numFinalized = n;
  }
  int numUc = numBlocks - numFinalized;
  int size = 2 + 3*(numFinalized+1) + 4*(numUc);
  long[] longs = new long[size];
  longs[0] = numFinalized;
  longs[1] = numUc;

  int idx = 2;
  int ucIdx = idx + 3*numFinalized;
  // delimiter block
  longs[ucIdx++] = -1;
  longs[ucIdx++] = -1;
  longs[ucIdx++] = -1;

  for (BlockReportReplica block : this) {
    switch (block.getState()) {
      case FINALIZED: {
        longs[idx++] = block.getBlockId();
        longs[idx++] = block.getNumBytes();
        longs[idx++] = block.getGenerationStamp();
        break;
      }
      default: {
        longs[ucIdx++] = block.getBlockId();
        longs[ucIdx++] = block.getNumBytes();
        longs[ucIdx++] = block.getGenerationStamp();
        longs[ucIdx++] = block.getState().getValue();
        break;
      }
    }
  }
  return longs;
}

Example 2

Source File: BlockReportTestBase.java From hadoop with Apache License 2.0

4 votes

private static StorageBlockReport[] getBlockReports(
    DataNode dn, String bpid, boolean corruptOneBlockGs,
    boolean corruptOneBlockLen) {
  Map<DatanodeStorage, BlockListAsLongs> perVolumeBlockLists =
      dn.getFSDataset().getBlockReports(bpid);

  // Send block report
  StorageBlockReport[] reports =
      new StorageBlockReport[perVolumeBlockLists.size()];
  boolean corruptedGs = false;
  boolean corruptedLen = false;

  int reportIndex = 0;
  for(Map.Entry<DatanodeStorage, BlockListAsLongs> kvPair : perVolumeBlockLists.entrySet()) {
    DatanodeStorage dnStorage = kvPair.getKey();
    BlockListAsLongs blockList = kvPair.getValue();

    // Walk the list of blocks until we find one each to corrupt the
    // generation stamp and length, if so requested.
    BlockListAsLongs.Builder builder = BlockListAsLongs.builder();
    for (BlockReportReplica block : blockList) {
      if (corruptOneBlockGs && !corruptedGs) {
        long gsOld = block.getGenerationStamp();
        long gsNew;
        do {
          gsNew = rand.nextInt();
        } while (gsNew == gsOld);
        block.setGenerationStamp(gsNew);
        LOG.info("Corrupted the GS for block ID " + block);
        corruptedGs = true;
      } else if (corruptOneBlockLen && !corruptedLen) {
        long lenOld = block.getNumBytes();
        long lenNew;
        do {
          lenNew = rand.nextInt((int)lenOld - 1);
        } while (lenNew == lenOld);
        block.setNumBytes(lenNew);
        LOG.info("Corrupted the length for block ID " + block);
        corruptedLen = true;
      }
      builder.add(new BlockReportReplica(block));
    }

    reports[reportIndex++] =
        new StorageBlockReport(dnStorage, builder.build());
  }

  return reports;
}

Example 3

Source File: BlockListAsLongs.java From big-c with Apache License 2.0

4 votes

@Override
public long[] getBlockListAsLongs() {
  // terribly inefficient but only occurs if server tries to transcode
  // an undecoded buffer into longs - ie. it will never happen but let's
  // handle it anyway
  if (numFinalized == -1) {
    int n = 0;
    for (Replica replica : this) {
      if (replica.getState() == ReplicaState.FINALIZED) {
        n++;
      }
    }
    numFinalized = n;
  }
  int numUc = numBlocks - numFinalized;
  int size = 2 + 3*(numFinalized+1) + 4*(numUc);
  long[] longs = new long[size];
  longs[0] = numFinalized;
  longs[1] = numUc;

  int idx = 2;
  int ucIdx = idx + 3*numFinalized;
  // delimiter block
  longs[ucIdx++] = -1;
  longs[ucIdx++] = -1;
  longs[ucIdx++] = -1;

  for (BlockReportReplica block : this) {
    switch (block.getState()) {
      case FINALIZED: {
        longs[idx++] = block.getBlockId();
        longs[idx++] = block.getNumBytes();
        longs[idx++] = block.getGenerationStamp();
        break;
      }
      default: {
        longs[ucIdx++] = block.getBlockId();
        longs[ucIdx++] = block.getNumBytes();
        longs[ucIdx++] = block.getGenerationStamp();
        longs[ucIdx++] = block.getState().getValue();
        break;
      }
    }
  }
  return longs;
}

Example 4

Source File: BlockReportTestBase.java From big-c with Apache License 2.0

4 votes

private static StorageBlockReport[] getBlockReports(
    DataNode dn, String bpid, boolean corruptOneBlockGs,
    boolean corruptOneBlockLen) {
  Map<DatanodeStorage, BlockListAsLongs> perVolumeBlockLists =
      dn.getFSDataset().getBlockReports(bpid);

  // Send block report
  StorageBlockReport[] reports =
      new StorageBlockReport[perVolumeBlockLists.size()];
  boolean corruptedGs = false;
  boolean corruptedLen = false;

  int reportIndex = 0;
  for(Map.Entry<DatanodeStorage, BlockListAsLongs> kvPair : perVolumeBlockLists.entrySet()) {
    DatanodeStorage dnStorage = kvPair.getKey();
    BlockListAsLongs blockList = kvPair.getValue();

    // Walk the list of blocks until we find one each to corrupt the
    // generation stamp and length, if so requested.
    BlockListAsLongs.Builder builder = BlockListAsLongs.builder();
    for (BlockReportReplica block : blockList) {
      if (corruptOneBlockGs && !corruptedGs) {
        long gsOld = block.getGenerationStamp();
        long gsNew;
        do {
          gsNew = rand.nextInt();
        } while (gsNew == gsOld);
        block.setGenerationStamp(gsNew);
        LOG.info("Corrupted the GS for block ID " + block);
        corruptedGs = true;
      } else if (corruptOneBlockLen && !corruptedLen) {
        long lenOld = block.getNumBytes();
        long lenNew;
        do {
          lenNew = rand.nextInt((int)lenOld - 1);
        } while (lenNew == lenOld);
        block.setNumBytes(lenNew);
        LOG.info("Corrupted the length for block ID " + block);
        corruptedLen = true;
      }
      builder.add(new BlockReportReplica(block));
    }

    reports[reportIndex++] =
        new StorageBlockReport(dnStorage, builder.build());
  }

  return reports;
}