Examples with UnsafeSortTempFileChunkHolder org.apache.carbondata.processing.loading.sort.unsafe.holder.UnsafeSortTempFileChunkHolder used on opensource projects

Example 1 with UnsafeSortTempFileChunkHolder

use of org.apache.carbondata.processing.loading.sort.unsafe.holder.UnsafeSortTempFileChunkHolder in project carbondata by apache.

the class UnsafeIntermediateFileMerger method startSorting.

/**
 * Below method will be used to start storing process This method will get
 * all the temp files present in sort temp folder then it will create the
 * record holder heap and then it will read first record from each file and
 * initialize the heap
 *
 * @throws CarbonSortKeyAndGroupByException
 */
private void startSorting() throws CarbonSortKeyAndGroupByException {
    LOGGER.info("Number of temp file: " + this.fileCounter);
    // create record holder heap
    createRecordHolderQueue(intermediateFiles);
    // iterate over file list and create chunk holder and add to heap
    LOGGER.info("Started adding first record from each file");
    SortTempChunkHolder sortTempFileChunkHolder = null;
    for (File tempFile : intermediateFiles) {
        // create chunk holder
        sortTempFileChunkHolder = new UnsafeSortTempFileChunkHolder(tempFile, mergerParameters);
        sortTempFileChunkHolder.readRow();
        this.totalNumberOfRecords += sortTempFileChunkHolder.numberOfRows();
        // add to heap
        this.recordHolderHeap.add(sortTempFileChunkHolder);
    }
    LOGGER.info("Heap Size: " + this.recordHolderHeap.size());
}

Example 2 with UnsafeSortTempFileChunkHolder

use of org.apache.carbondata.processing.loading.sort.unsafe.holder.UnsafeSortTempFileChunkHolder in project carbondata by apache.

the class UnsafeSingleThreadFinalSortFilesMerger method startSorting.

/**
 * Below method will be used to start storing process This method will get
 * all the temp files present in sort temp folder then it will create the
 * record holder heap and then it will read first record from each file and
 * initialize the heap
 */
private void startSorting(UnsafeCarbonRowPage[] rowPages, List<UnsafeInMemoryIntermediateDataMerger> merges) throws CarbonDataWriterException {
    try {
        List<File> filesToMergeSort = getFilesToMergeSort();
        this.fileCounter = rowPages.length + filesToMergeSort.size() + merges.size();
        if (fileCounter == 0) {
            LOGGER.info("No files to merge sort");
            return;
        }
        LOGGER.info("Starting final merger");
        LOGGER.info("Number of row pages: " + this.fileCounter);
        // create record holder heap
        createRecordHolderQueue();
        // iterate over file list and create chunk holder and add to heap
        LOGGER.info("Started adding first record from each page");
        for (final UnsafeCarbonRowPage rowPage : rowPages) {
            SortTempChunkHolder sortTempFileChunkHolder = new UnsafeInmemoryHolder(rowPage);
            // initialize
            sortTempFileChunkHolder.readRow();
            recordHolderHeapLocal.add(sortTempFileChunkHolder);
        }
        for (final UnsafeInMemoryIntermediateDataMerger merger : merges) {
            SortTempChunkHolder sortTempFileChunkHolder = new UnsafeFinalMergePageHolder(merger, parameters.getNoDictionarySortColumn());
            // initialize
            sortTempFileChunkHolder.readRow();
            recordHolderHeapLocal.add(sortTempFileChunkHolder);
        }
        for (final File file : filesToMergeSort) {
            SortTempChunkHolder sortTempFileChunkHolder = new UnsafeSortTempFileChunkHolder(file, parameters);
            // initialize
            sortTempFileChunkHolder.readRow();
            recordHolderHeapLocal.add(sortTempFileChunkHolder);
        }
        LOGGER.info("Heap Size: " + this.recordHolderHeapLocal.size());
    } catch (Exception e) {
        LOGGER.error(e);
        throw new CarbonDataWriterException(e);
    }
}