Examples with UnsafeIntermediateMerger org.apache.carbondata.processing.newflow.sort.unsafe.merger.UnsafeIntermediateMerger used on opensource projects

Example 1 with UnsafeIntermediateMerger

use of org.apache.carbondata.processing.newflow.sort.unsafe.merger.UnsafeIntermediateMerger in project carbondata by apache.

the class UnsafeParallelReadMergeSorterImpl method initialize.

@Override
public void initialize(SortParameters sortParameters) {
    this.sortParameters = sortParameters;
    unsafeIntermediateFileMerger = new UnsafeIntermediateMerger(sortParameters);
    String storeLocation = CarbonDataProcessorUtil.getLocalDataFolderLocation(sortParameters.getDatabaseName(), sortParameters.getTableName(), String.valueOf(sortParameters.getTaskNo()), sortParameters.getPartitionID(), sortParameters.getSegmentId() + "", false);
    // Set the data file location
    String dataFolderLocation = storeLocation + File.separator + CarbonCommonConstants.SORT_TEMP_FILE_LOCATION;
    finalMerger = new UnsafeSingleThreadFinalSortFilesMerger(sortParameters, sortParameters.getTempFileLocation());
}

Example 2 with UnsafeIntermediateMerger

use of org.apache.carbondata.processing.newflow.sort.unsafe.merger.UnsafeIntermediateMerger in project carbondata by apache.

the class UnsafeParallelReadMergeSorterWithBucketingImpl method sort.

@Override
public Iterator<CarbonRowBatch>[] sort(Iterator<CarbonRowBatch>[] iterators) throws CarbonDataLoadingException {
    UnsafeSortDataRows[] sortDataRows = new UnsafeSortDataRows[bucketingInfo.getNumberOfBuckets()];
    UnsafeIntermediateMerger[] intermediateFileMergers = new UnsafeIntermediateMerger[sortDataRows.length];
    int inMemoryChunkSizeInMB = CarbonProperties.getInstance().getSortMemoryChunkSizeInMB();
    inMemoryChunkSizeInMB = inMemoryChunkSizeInMB / bucketingInfo.getNumberOfBuckets();
    if (inMemoryChunkSizeInMB < 5) {
        inMemoryChunkSizeInMB = 5;
    }
    try {
        for (int i = 0; i < bucketingInfo.getNumberOfBuckets(); i++) {
            SortParameters parameters = sortParameters.getCopy();
            parameters.setPartitionID(i + "");
            setTempLocation(parameters);
            intermediateFileMergers[i] = new UnsafeIntermediateMerger(parameters);
            sortDataRows[i] = new UnsafeSortDataRows(parameters, intermediateFileMergers[i], inMemoryChunkSizeInMB);
            sortDataRows[i].initialize();
        }
    } catch (CarbonSortKeyAndGroupByException e) {
        throw new CarbonDataLoadingException(e);
    }
    this.executorService = Executors.newFixedThreadPool(iterators.length);
    final int batchSize = CarbonProperties.getInstance().getBatchSize();
    try {
        for (int i = 0; i < iterators.length; i++) {
            executorService.submit(new SortIteratorThread(iterators[i], sortDataRows));
        }
        executorService.shutdown();
        executorService.awaitTermination(2, TimeUnit.DAYS);
        processRowToNextStep(sortDataRows, sortParameters);
    } catch (Exception e) {
        throw new CarbonDataLoadingException("Problem while shutdown the server ", e);
    }
    try {
        for (int i = 0; i < intermediateFileMergers.length; i++) {
            intermediateFileMergers[i].finish();
        }
    } catch (Exception e) {
        throw new CarbonDataLoadingException(e);
    }
    Iterator<CarbonRowBatch>[] batchIterator = new Iterator[bucketingInfo.getNumberOfBuckets()];
    for (int i = 0; i < sortDataRows.length; i++) {
        batchIterator[i] = new MergedDataIterator(String.valueOf(i), batchSize, intermediateFileMergers[i]);
    }
    return batchIterator;
}