Examples with ColumnIndexContainer com.linkedin.pinot.core.segment.index.column.ColumnIndexContainer used on opensource projects

Example 1 with ColumnIndexContainer

use of com.linkedin.pinot.core.segment.index.column.ColumnIndexContainer in project pinot by linkedin.

the class IndexSegmentImpl method destroy.

@Override
public void destroy() {
    LOGGER.info("Trying to destroy segment : {}", this.getSegmentName());
    for (String column : indexContainerMap.keySet()) {
        ColumnIndexContainer columnIndexContainer = indexContainerMap.get(column);
        try {
            if (columnIndexContainer.hasDictionary()) {
                ImmutableDictionaryReader dictionary = columnIndexContainer.getDictionary();
                dictionary.close();
            }
        } catch (Exception e) {
            LOGGER.error("Error when close dictionary index for column : " + column, e);
        }
        try {
            columnIndexContainer.getForwardIndex().close();
        } catch (Exception e) {
            LOGGER.error("Error when close forward index for column : " + column, e);
        }
        try {
            if (columnIndexContainer.getInvertedIndex() != null) {
                columnIndexContainer.getInvertedIndex().close();
            }
        } catch (Exception e) {
            LOGGER.error("Error when close inverted index for column : " + column, e);
        }
    }
    try {
        segmentDirectory.close();
    } catch (Exception e) {
        LOGGER.error("Failed to close segment directory: {}. Continuing with error.", segmentDirectory, e);
    }
    indexContainerMap.clear();
}

Example 2 with ColumnIndexContainer

use of com.linkedin.pinot.core.segment.index.column.ColumnIndexContainer in project pinot by linkedin.

the class BitmapPerformanceBenchmark method iterationSpeed.

public static void iterationSpeed(String indexSegmentDir, String column) throws Exception {
    File indexSegment = new File(indexSegmentDir);
    SegmentMetadataImpl segmentMetadata = new SegmentMetadataImpl(indexSegment);
    Map<String, BitmapInvertedIndexReader> bitMapIndexMap = new HashMap<String, BitmapInvertedIndexReader>();
    Map<String, Integer> cardinalityMap = new HashMap<String, Integer>();
    Map<String, ImmutableDictionaryReader> dictionaryMap = new HashMap<String, ImmutableDictionaryReader>();
    File bitMapIndexFile = new File(indexSegmentDir, column + ".bitmap.inv");
    ColumnMetadata columnMetadata = segmentMetadata.getColumnMetadataFor(column);
    int cardinality = columnMetadata.getCardinality();
    cardinalityMap.put(column, cardinality);
    PinotDataBuffer bitMapDataBuffer = PinotDataBuffer.fromFile(bitMapIndexFile, ReadMode.mmap, FileChannel.MapMode.READ_ONLY, "testing");
    BitmapInvertedIndexReader bitmapInvertedIndex = new BitmapInvertedIndexReader(bitMapDataBuffer, cardinality);
    File dictionaryFile = new File(indexSegmentDir + "/" + column + ".dict");
    SegmentDirectory segmentDirectory = SegmentDirectory.createFromLocalFS(indexSegment, segmentMetadata, ReadMode.mmap);
    SegmentDirectory.Reader segmentReader = segmentDirectory.createReader();
    ColumnIndexContainer container = ColumnIndexContainer.init(segmentReader, columnMetadata, null);
    ImmutableDictionaryReader dictionary = container.getDictionary();
    dictionaryMap.put(column, dictionary);
    // System.out.println(column + ":\t" + MemoryUtil.deepMemoryUsageOf(bitmapInvertedIndex));
    bitMapIndexMap.put(column, bitmapInvertedIndex);
    int dictId = dictionary.indexOf("na.us");
    ImmutableRoaringBitmap immutable = bitmapInvertedIndex.getImmutable(dictId);
    Iterator<Integer> iterator = immutable.iterator();
    int count = 0;
    long start = System.currentTimeMillis();
    while (iterator.hasNext()) {
        iterator.next();
        count = count + 1;
    }
    long end = System.currentTimeMillis();
    System.out.println(" matched: " + count + " Time to iterate:" + (end - start));
    bitMapDataBuffer.close();
}

Example 3 with ColumnIndexContainer

use of com.linkedin.pinot.core.segment.index.column.ColumnIndexContainer in project pinot by linkedin.

the class BitmapPerformanceBenchmark method benchmarkIntersetionAndUnion.

public static void benchmarkIntersetionAndUnion(String indexSegmentDir) throws ConfigurationException, IOException, Exception {
    File[] listFiles = new File(indexSegmentDir).listFiles();
    File indexDir = new File(indexSegmentDir);
    SegmentMetadataImpl segmentMetadata = new SegmentMetadataImpl(indexDir);
    Map<String, BitmapInvertedIndexReader> bitMapIndexMap = new HashMap<String, BitmapInvertedIndexReader>();
    Map<String, Integer> cardinalityMap = new HashMap<String, Integer>();
    Map<String, ImmutableDictionaryReader> dictionaryMap = new HashMap<String, ImmutableDictionaryReader>();
    for (File file : listFiles) {
        if (!file.getName().endsWith("bitmap.inv")) {
            continue;
        }
        String column = file.getName().replaceAll(".bitmap.inv", "");
        ColumnMetadata columnMetadata = segmentMetadata.getColumnMetadataFor(column);
        int cardinality = columnMetadata.getCardinality();
        cardinalityMap.put(column, cardinality);
        System.out.println(column + "\t\t\t" + cardinality + "  \t" + columnMetadata.getDataType());
        PinotDataBuffer bitmapDataBuffer = PinotDataBuffer.fromFile(file, ReadMode.mmap, FileChannel.MapMode.READ_ONLY, "testing");
        BitmapInvertedIndexReader bitmapInvertedIndex = new BitmapInvertedIndexReader(bitmapDataBuffer, cardinality);
        File dictionaryFile = new File(indexSegmentDir + "/" + column + ".dict");
        SegmentDirectory segmentDirectory = SegmentDirectory.createFromLocalFS(indexDir, segmentMetadata, ReadMode.mmap);
        SegmentDirectory.Reader segmentReader = segmentDirectory.createReader();
        ColumnIndexContainer container = ColumnIndexContainer.init(segmentReader, columnMetadata, null);
        ImmutableDictionaryReader dictionary = container.getDictionary();
        if (columnMetadata.getDataType() == DataType.INT) {
            System.out.println("BitmapPerformanceBenchmark.main()");
            assert dictionary instanceof IntDictionary;
        }
        dictionaryMap.put(column, dictionary);
        // System.out.println(column + ":\t" + MemoryUtil.deepMemoryUsageOf(bitmapInvertedIndex));
        bitMapIndexMap.put(column, bitmapInvertedIndex);
        bitmapDataBuffer.close();
    }
    List<String> dimensionNamesList = segmentMetadata.getSchema().getDimensionNames();
    Collections.shuffle(dimensionNamesList);
    int NUM_TEST = 100;
    final int MAX_DIMENSIONS_PER_DIMENSION = 1;
    int MAX_DIMENSIONS_IN_WHERE_CLAUSE = 3;
    Random random = new Random();
    for (int numDimensions = 1; numDimensions <= MAX_DIMENSIONS_IN_WHERE_CLAUSE; numDimensions++) {
        for (int numValuesPerDimension = 1; numValuesPerDimension <= MAX_DIMENSIONS_PER_DIMENSION; numValuesPerDimension++) {
            int runCount = 0;
            while (runCount < NUM_TEST) {
                Collections.shuffle(dimensionNamesList);
                List<ImmutableRoaringBitmap> bitMaps = new ArrayList<ImmutableRoaringBitmap>();
                List<String> columnNameValuePairs = new ArrayList<String>();
                for (int i = 0; i < numDimensions; i++) {
                    String columnName = dimensionNamesList.get(i);
                    InvertedIndexReader bitmapInvertedIndex = bitMapIndexMap.get(columnName);
                    for (int j = 0; j < numValuesPerDimension; j++) {
                        int dictId = random.nextInt(cardinalityMap.get(columnName));
                        String dictValue = dictionaryMap.get(columnName).getStringValue(dictId);
                        columnNameValuePairs.add(columnName + ":" + dictValue);
                        ImmutableRoaringBitmap immutable = bitmapInvertedIndex.getImmutable(dictId);
                        bitMaps.add(immutable);
                    }
                }
                System.out.println("START**********************************");
                int[] cardinality = new int[bitMaps.size()];
                int[] sizes = new int[bitMaps.size()];
                for (int i = 0; i < bitMaps.size(); i++) {
                    ImmutableRoaringBitmap immutableRoaringBitmap = bitMaps.get(i);
                    cardinality[i] = immutableRoaringBitmap.getCardinality();
                    sizes[i] = immutableRoaringBitmap.getSizeInBytes();
                }
                System.out.println("\t#bitmaps:" + bitMaps.size());
                System.out.println("\tinput values:" + columnNameValuePairs);
                System.out.println("\tinput cardinality:" + Arrays.toString(cardinality));
                System.out.println("\tinput sizes:" + Arrays.toString(sizes));
                and(bitMaps);
                or(bitMaps);
                System.out.println("END**********************************");
                runCount = runCount + 1;
            }
        }
    }
}