Package org.apache.hadoop.hdfs.server.datanode.FSDatasetInterface

Examples of org.apache.hadoop.hdfs.server.datanode.FSDatasetInterface.MetaDataInputStream

470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
          IOUtils.closeStream(out);
        }
      }
    }

    final MetaDataInputStream metadataIn = datanode.data.getMetaDataInputStream(block);
    final DataInputStream checksumIn = new DataInputStream(new BufferedInputStream(
        metadataIn, BUFFER_SIZE));

    updateThreadName("getting checksum for block " + block);
    try {
      //read metadata file
      final BlockMetadataHeader header = BlockMetadataHeader.readHeader(checksumIn);
      final DataChecksum checksum = header.getChecksum();
      final int bytesPerCRC = checksum.getBytesPerChecksum();
      final long crcPerBlock = (metadataIn.getLength()
          - BlockMetadataHeader.getHeaderSize())/checksum.getChecksumSize();
     
      //compute block checksum
      final MD5Hash md5 = MD5Hash.digest(checksumIn);
View Full Code Here
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
        new ReadMetadataHeader(versionAndOpcode);
    readMetadataHeader.readFields(in);
    final int namespaceId = readMetadataHeader.getNamespaceId();
    Block block = new Block(readMetadataHeader.getBlockId(), 0,
        readMetadataHeader.getGenStamp());
    MetaDataInputStream checksumIn = null;
    DataOutputStream out = null;
    updateCurrentThreadName("reading metadata for block " + block);
    try {
      checksumIn = datanode.data.getMetaDataInputStream(namespaceId, block);
     
      long fileSize = checksumIn.getLength();

      if (fileSize >= 1L<<31 || fileSize <= 0) {
          throw new IOException("Unexpected size for checksumFile of block" +
                  block);
      }
View Full Code Here
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
    final int namespaceId = blockChecksumHeader.getNamespaceId();
    final Block block = new Block(blockChecksumHeader.getBlockId(), 0,
            blockChecksumHeader.getGenStamp());

    DataOutputStream out = null;
    final MetaDataInputStream metadataIn = datanode.data.getMetaDataInputStream(namespaceId, block);
    final DataInputStream checksumIn = new DataInputStream(new BufferedInputStream(
        metadataIn, BUFFER_SIZE));

    updateCurrentThreadName("getting checksum for block " + block);
    try {
      //read metadata file
      final BlockMetadataHeader header = BlockMetadataHeader.readHeader(checksumIn);
      final DataChecksum checksum = header.getChecksum();
      final int bytesPerCRC = checksum.getBytesPerChecksum();
      final long crcPerBlock = (metadataIn.getLength()
          - BlockMetadataHeader.getHeaderSize())/checksum.getChecksumSize();
     
      //compute block checksum
      final MD5Hash md5 = MD5Hash.digest(checksumIn);
View Full Code Here
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
   * Reads the metadata and sends the data in one 'DATA_CHUNK'.
   * @param in
   */
  void readMetadata(DataInputStream in) throws IOException {
    Block block = new Block( in.readLong(), 0 , in.readLong());
    MetaDataInputStream checksumIn = null;
    DataOutputStream out = null;
   
    try {

      checksumIn = datanode.data.getMetaDataInputStream(block);
     
      long fileSize = checksumIn.getLength();

      if (fileSize >= 1L<<31 || fileSize <= 0) {
          throw new IOException("Unexpected size for checksumFile of block" +
                  block);
      }
View Full Code Here
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
   */
  void getBlockChecksum(DataInputStream in) throws IOException {
    final Block block = new Block(in.readLong(), 0 , in.readLong());

    DataOutputStream out = null;
    final MetaDataInputStream metadataIn = datanode.data.getMetaDataInputStream(block);
    final DataInputStream checksumIn = new DataInputStream(new BufferedInputStream(
        metadataIn, BUFFER_SIZE));

    try {
      //read metadata file
      final BlockMetadataHeader header = BlockMetadataHeader.readHeader(checksumIn);
      final DataChecksum checksum = header.getChecksum();
      final int bytesPerCRC = checksum.getBytesPerChecksum();
      final long crcPerBlock = (metadataIn.getLength()
          - BlockMetadataHeader.getHeaderSize())/checksum.getChecksumSize();
     
      //compute block checksum
      final MD5Hash md5 = MD5Hash.digest(checksumIn);

View Full Code Here
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
          IOUtils.closeStream(out);
        }
      }
    }

    final MetaDataInputStream metadataIn = datanode.data.getMetaDataInputStream(block);
    final DataInputStream checksumIn = new DataInputStream(new BufferedInputStream(
        metadataIn, BUFFER_SIZE));

    try {
      //read metadata file
      final BlockMetadataHeader header = BlockMetadataHeader.readHeader(checksumIn);
      final DataChecksum checksum = header.getChecksum();
      final int bytesPerCRC = checksum.getBytesPerChecksum();
      final long crcPerBlock = (metadataIn.getLength()
          - BlockMetadataHeader.getHeaderSize())/checksum.getChecksumSize();
     
      //compute block checksum
      final MD5Hash md5 = MD5Hash.digest(checksumIn);
View Full Code Here
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
   * Reads the metadata and sends the data in one 'DATA_CHUNK'.
   * @param in
   */
  void readMetadata(DataInputStream in) throws IOException {
    Block block = new Block( in.readLong(), 0 , in.readLong());
    MetaDataInputStream checksumIn = null;
    DataOutputStream out = null;
   
    try {

      checksumIn = datanode.data.getMetaDataInputStream(block);
     
      long fileSize = checksumIn.getLength();

      if (fileSize >= 1L<<31 || fileSize <= 0) {
          throw new IOException("Unexpected size for checksumFile of block" +
                  block);
      }
View Full Code Here
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
   */
  void getBlockChecksum(DataInputStream in) throws IOException {
    final Block block = new Block(in.readLong(), 0 , in.readLong());

    DataOutputStream out = null;
    final MetaDataInputStream metadataIn = datanode.data.getMetaDataInputStream(block);
    final DataInputStream checksumIn = new DataInputStream(new BufferedInputStream(
        metadataIn, BUFFER_SIZE));

    try {
      //read metadata file
      final BlockMetadataHeader header = BlockMetadataHeader.readHeader(checksumIn);
      final DataChecksum checksum = header.getChecksum();
      final int bytesPerCRC = checksum.getBytesPerChecksum();
      final long crcPerBlock = (metadataIn.getLength()
          - BlockMetadataHeader.getHeaderSize())/checksum.getChecksumSize();
     
      //compute block checksum
      final MD5Hash md5 = MD5Hash.digest(checksumIn);

View Full Code Here
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
   * Reads the metadata and sends the data in one 'DATA_CHUNK'.
   * @param in
   */
  void readMetadata(DataInputStream in) throws IOException {
    Block block = new Block( in.readLong(), 0 , in.readLong());
    MetaDataInputStream checksumIn = null;
    DataOutputStream out = null;
   
    try {

      checksumIn = datanode.data.getMetaDataInputStream(block);
     
      long fileSize = checksumIn.getLength();

      if (fileSize >= 1L<<31 || fileSize <= 0) {
          throw new IOException("Unexpected size for checksumFile of block" +
                  block);
      }
View Full Code Here
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
   */
  void getBlockChecksum(DataInputStream in) throws IOException {
    final Block block = new Block(in.readLong(), 0 , in.readLong());

    DataOutputStream out = null;
    final MetaDataInputStream metadataIn = datanode.data.getMetaDataInputStream(block);
    final DataInputStream checksumIn = new DataInputStream(new BufferedInputStream(
        metadataIn, BUFFER_SIZE));

    try {
      //read metadata file
      final BlockMetadataHeader header = BlockMetadataHeader.readHeader(checksumIn);
      final DataChecksum checksum = header.getChecksum();
      final int bytesPerCRC = checksum.getBytesPerChecksum();
      final long crcPerBlock = (metadataIn.getLength()
          - BlockMetadataHeader.getHeaderSize())/checksum.getChecksumSize();
     
      //compute block checksum
      final MD5Hash md5 = MD5Hash.digest(checksumIn);

View Full Code Here
TOP

Related Classes of org.apache.hadoop.hdfs.server.datanode.FSDatasetInterface.MetaDataInputStream

  • org.apache.hadoop.hdfs.server.datanode.DataXceiver
    • Copyright © 2018 www.massapicom. All rights reserved.
    All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.