Examples with DWRF com.facebook.presto.orc.OrcEncoding.DWRF used on opensource projects

Example 1 with DWRF

use of com.facebook.presto.orc.OrcEncoding.DWRF in project presto by prestodb.

the class TestDecryption method validateFileStatistics.

private static void validateFileStatistics(TempFile tempFile, Optional<DwrfWriterEncryption> dwrfWriterEncryption, Map<Integer, Slice> readerIntermediateKeys) throws IOException {
    OrcReader readerNoKeys = OrcTester.createCustomOrcReader(tempFile, DWRF, false, ImmutableMap.of());
    if (readerNoKeys.getFooter().getStripes().isEmpty()) {
        // files w/o stripes don't have stats
        assertEquals(readerNoKeys.getFooter().getFileStats().size(), 0);
        return;
    }
    if (dwrfWriterEncryption.isPresent()) {
        List<OrcType> types = readerNoKeys.getTypes();
        List<ColumnStatistics> fileStatsNoKey = readerNoKeys.getFooter().getFileStats();
        assertEquals(fileStatsNoKey.size(), types.size());
        Set<Integer> allEncryptedNodes = dwrfWriterEncryption.get().getWriterEncryptionGroups().stream().flatMap(group -> group.getNodes().stream()).flatMap(node -> collectNodeTree(types, node).stream()).collect(Collectors.toSet());
        for (Set<Integer> readerKeyNodes : Sets.powerSet(readerIntermediateKeys.keySet())) {
            Map<Integer, Slice> readerKeys = new HashMap<>();
            readerKeyNodes.forEach(node -> readerKeys.put(node, readerIntermediateKeys.get(node)));
            // nodes that are supposed to be decrypted by the reader
            Set<Integer> decryptedNodes = readerKeys.keySet().stream().flatMap(node -> collectNodeTree(types, node).stream()).collect(Collectors.toSet());
            // decryptedNodes should be a subset of encrypted nodes
            assertTrue(allEncryptedNodes.containsAll(decryptedNodes));
            OrcReader readerWithKeys = OrcTester.createCustomOrcReader(tempFile, DWRF, false, readerIntermediateKeys);
            List<ColumnStatistics> fileStatsWithKey = readerWithKeys.getFooter().getFileStats();
            assertEquals(fileStatsWithKey.size(), types.size());
            for (int node = 0; node < types.size(); node++) {
                ColumnStatistics statsWithKey = fileStatsWithKey.get(node);
                ColumnStatistics statsNoKey = fileStatsNoKey.get(node);
                OrcType type = types.get(node);
                // encrypted nodes should have no type info
                if (allEncryptedNodes.contains(node)) {
                    assertTrue(hasNoTypeStats(statsNoKey));
                } else {
                    assertStatsTypeMatch(statsNoKey, type);
                    assertStatsTypeMatch(statsWithKey, type);
                    assertEquals(statsNoKey, statsWithKey);
                }
                if (decryptedNodes.contains(node)) {
                    assertStatsTypeMatch(statsWithKey, type);
                }
            }
        }
    }
}

Example 2 with DWRF

use of com.facebook.presto.orc.OrcEncoding.DWRF in project presto by prestodb.

the class OrcFileWriterFactory method createFileWriter.

@Override
public Optional<HiveFileWriter> createFileWriter(Path path, List<String> inputColumnNames, StorageFormat storageFormat, Properties schema, JobConf configuration, ConnectorSession session, Optional<EncryptionInformation> encryptionInformation) {
    if (!HiveSessionProperties.isOrcOptimizedWriterEnabled(session)) {
        return Optional.empty();
    }
    OrcEncoding orcEncoding;
    if (OrcOutputFormat.class.getName().equals(storageFormat.getOutputFormat())) {
        orcEncoding = ORC;
    } else if (com.facebook.hive.orc.OrcOutputFormat.class.getName().equals(storageFormat.getOutputFormat())) {
        orcEncoding = DWRF;
    } else {
        return Optional.empty();
    }
    CompressionKind compression = getCompression(schema, configuration, orcEncoding);
    // existing tables and partitions may have columns in a different order than the writer is providing, so build
    // an index to rearrange columns in the proper order
    List<String> fileColumnNames = Splitter.on(',').trimResults().omitEmptyStrings().splitToList(schema.getProperty(META_TABLE_COLUMNS, ""));
    List<Type> fileColumnTypes = toHiveTypes(schema.getProperty(META_TABLE_COLUMN_TYPES, "")).stream().map(hiveType -> hiveType.getType(typeManager)).collect(toList());
    int[] fileInputColumnIndexes = fileColumnNames.stream().mapToInt(inputColumnNames::indexOf).toArray();
    try {
        FileSystem fileSystem = hdfsEnvironment.getFileSystem(session.getUser(), path, configuration);
        DataSink dataSink = createDataSink(session, fileSystem, path);
        Optional<Supplier<OrcDataSource>> validationInputFactory = Optional.empty();
        if (HiveSessionProperties.isOrcOptimizedWriterValidate(session)) {
            validationInputFactory = Optional.of(() -> {
                try {
                    return new HdfsOrcDataSource(new OrcDataSourceId(path.toString()), fileSystem.getFileStatus(path).getLen(), getOrcMaxMergeDistance(session), getOrcMaxBufferSize(session), getOrcStreamBufferSize(session), false, fileSystem.open(path), readStats);
                } catch (IOException e) {
                    throw new PrestoException(HIVE_WRITE_VALIDATION_FAILED, e);
                }
            });
        }
        Callable<Void> rollbackAction = () -> {
            fileSystem.delete(path, false);
            return null;
        };
        Optional<DwrfWriterEncryption> dwrfWriterEncryption = createDwrfEncryption(encryptionInformation, fileColumnNames, fileColumnTypes);
        return Optional.of(new OrcFileWriter(dataSink, rollbackAction, orcEncoding, fileColumnNames, fileColumnTypes, compression, orcFileWriterConfig.toOrcWriterOptionsBuilder().withFlushPolicy(DefaultOrcWriterFlushPolicy.builder().withStripeMinSize(getOrcOptimizedWriterMinStripeSize(session)).withStripeMaxSize(getOrcOptimizedWriterMaxStripeSize(session)).withStripeMaxRowCount(getOrcOptimizedWriterMaxStripeRows(session)).build()).withDictionaryMaxMemory(getOrcOptimizedWriterMaxDictionaryMemory(session)).withMaxStringStatisticsLimit(getOrcStringStatisticsLimit(session)).withIgnoreDictionaryRowGroupSizes(isExecutionBasedMemoryAccountingEnabled(session)).withDwrfStripeCacheEnabled(isDwrfWriterStripeCacheEnabled(session)).withDwrfStripeCacheMaxSize(getDwrfWriterStripeCacheeMaxSize(session)).build(), fileInputColumnIndexes, ImmutableMap.<String, String>builder().put(HiveMetadata.PRESTO_VERSION_NAME, nodeVersion.toString()).put(MetastoreUtil.PRESTO_QUERY_ID_NAME, session.getQueryId()).build(), hiveStorageTimeZone, validationInputFactory, getOrcOptimizedWriterValidateMode(session), stats, dwrfEncryptionProvider, dwrfWriterEncryption));
    } catch (IOException e) {
        throw new PrestoException(HIVE_WRITER_OPEN_ERROR, "Error creating " + orcEncoding + " file. " + e.getMessage(), e);
    }
}