List of seekTo() Examples

Examples of seekTo()

org.apache.cassandra.db.FileStruct.seekTo()
org.apache.cassandra.io.SSTableScanner.seekTo()
org.apache.cassandra.io.sstable.SSTableScanner.seekTo()
org.apache.hadoop.hbase.io.hfile.HFileScanner.seekTo()
SeekTo or just before the passed key. Examine the return code to figure whether we found the key or not. Consider the key stream of all the keys in the file, k[0] .. k[n], where there are n keys in the file. @param key Key to find. @return -1, if key < k[0], no position;0, such that k[i] = key and scanner is left in position i; and 1, such that k[i] < key, and scanner is left in position i. Furthermore, there may be a k[i+1], such that k[i] < key < k[i+1] but there may not be a k[i+1], and next() will return false (EOF). @throws IOException
org.apache.hadoop.io.file.tfile.TFile.Reader.Scanner.seekTo()
org.apache.hadoop.zebra.tfile.TFile.Reader.Scanner.seekTo()
org.apache.lucene.index.DocValuesReader.seekTo()

Examples of org.apache.hadoop.hbase.io.hfile.HFileScanner.seekTo()

  private void verifyCounts(int countRow1, int countRow2) throws Exception {
    int count1 = 0;
    int count2 = 0;
    for (StoreFile f: this.r.stores.get(COLUMN_FAMILY_TEXT).getStorefiles()) {
      HFileScanner scanner = f.getReader().getScanner(false, false);
      scanner.seekTo();
      do {
        byte [] row = scanner.getKeyValue().getRow();
        if (Bytes.equals(row, STARTROW)) {
          count1++;
        } else if(Bytes.equals(row, secondRowBytes)) {

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Examples of org.apache.hadoop.hbase.io.hfile.HFileScanner.seekTo()

  private int count() throws IOException {
    int count = 0;
    for (StoreFile f: this.r.stores.
        get(COLUMN_FAMILY_TEXT).getStorefiles()) {
      HFileScanner scanner = f.getReader().getScanner(false, false);
      if (!scanner.seekTo()) {
        continue;
      }
      do {
        count++;
      } while(scanner.next());

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Examples of org.apache.hadoop.hbase.io.hfile.HFileScanner.seekTo()

      }


      if (verifyBulkLoads) {
        KeyValue prevKV = null;
        HFileScanner scanner = reader.getScanner(false, false, false);
        scanner.seekTo();
        do {
          KeyValue kv = scanner.getKeyValue();
          if (prevKV != null) {
            if (Bytes.compareTo(prevKV.getBuffer(), prevKV.getRowOffset(),
                prevKV.getRowLength(), kv.getBuffer(), kv.getRowOffset(),

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Examples of org.apache.hadoop.hbase.io.hfile.HFileScanner.seekTo()

              .withBloomType(bloomFilterType)
              .withChecksumType(HStore.getChecksumType(conf))
              .withBytesPerChecksum(HStore.getBytesPerChecksum(conf))
              .build();
      HFileScanner scanner = halfReader.getScanner(false, false, false);
      scanner.seekTo();
      do {
        KeyValue kv = scanner.getKeyValue();
        halfWriter.append(kv);
      } while (scanner.next());

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Examples of org.apache.hadoop.hbase.io.hfile.HFileScanner.seekTo()

    final HalfStoreFileReader halfreader = new HalfStoreFileReader(fs, p,
        cacheConf, bottom, DataBlockEncoding.NONE);
    halfreader.loadFileInfo();
    final HFileScanner scanner = halfreader.getScanner(false, false);


    scanner.seekTo();
    KeyValue curr;
    do {
      curr = scanner.getKeyValue();
      KeyValue reseekKv =
          getLastOnCol(curr);

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Examples of org.apache.hadoop.hbase.io.hfile.HFileScanner.seekTo()


    @Override
    void doRow(int i) throws Exception {
      HFileScanner scanner = this.reader.getScanner(false, true);
      byte [] b = getRandomRow();
      if (scanner.seekTo(b) < 0) {
        LOG.info("Not able to seekTo " + new String(b));
        return;
      }
      ByteBuffer k = scanner.getKey();
      PerformanceEvaluationCommons.assertKey(b, k);

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Examples of org.apache.hadoop.hbase.io.hfile.HFileScanner.seekTo()


    @Override
    void doRow(int i) throws Exception {
      HFileScanner scanner = this.reader.getScanner(false, false);
      byte [] b = getRandomRow();
      if (scanner.seekTo(b) != 0) {
        LOG.info("Nonexistent row: " + new String(b));
        return;
      }
      ByteBuffer k = scanner.getKey();
      PerformanceEvaluationCommons.assertKey(b, k);

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Examples of org.apache.hadoop.hbase.io.hfile.HFileScanner.seekTo()


    @Override
    void doRow(int i) throws Exception {
      HFileScanner scanner = this.reader.getScanner(false, true);
      byte[] gaussianRandomRowBytes = getGaussianRandomRowBytes();
      if (scanner.seekTo(gaussianRandomRowBytes) < 0) {
        LOG.info("Not able to seekTo " + new String(gaussianRandomRowBytes));
        return;
      }
      for (int ii = 0; ii < 30; ii++) {
        if (!scanner.next()) {

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Examples of org.apache.hadoop.hbase.io.hfile.HFileScanner.seekTo()

        BloomType.ROWCOL, null);
    HFileReaderV2 reader = (HFileReaderV2) sf.createReader().getHFileReader();
    try {
      // Open a scanner with (on read) caching disabled
      HFileScanner scanner = reader.getScanner(false, false);
      assertTrue(testDescription, scanner.seekTo());
      // Cribbed from io.hfile.TestCacheOnWrite
      long offset = 0;
      HFileBlock prevBlock = null;
      while (offset < reader.getTrailer().getLoadOnOpenDataOffset()) {
        long onDiskSize = -1;

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Examples of org.apache.hadoop.hbase.io.hfile.HFileScanner.seekTo()

    StoreFile refHsf = new StoreFile(this.fs, refPath, conf, cacheConf,
        BloomType.NONE, NoOpDataBlockEncoder.INSTANCE);
    // Now confirm that I can read from the reference and that it only gets
    // keys from top half of the file.
    HFileScanner s = refHsf.createReader().getScanner(false, false);
    for(boolean first = true; (!s.isSeeked() && s.seekTo()) || s.next();) {
      ByteBuffer bb = s.getKey();
      kv = KeyValue.createKeyValueFromKey(bb);
      if (first) {
        assertTrue(Bytes.equals(kv.getRow(), midRow));
        first = false;

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