use of io.trino.plugin.hive.orc.OrcFileWriterFactory in project trino by trinodb.
the class TestHiveFileFormats method testOrcOptimizedWriter.
@Test(dataProvider = "validRowAndFileSizePadding")
public void testOrcOptimizedWriter(int rowCount, long fileSizePadding) throws Exception {
HiveSessionProperties hiveSessionProperties = new HiveSessionProperties(new HiveConfig(), new OrcReaderConfig(), new OrcWriterConfig().setValidationPercentage(100.0), new ParquetReaderConfig(), new ParquetWriterConfig());
ConnectorSession session = TestingConnectorSession.builder().setPropertyMetadata(hiveSessionProperties.getSessionProperties()).build();
// A Trino page cannot contain a map with null keys, so a page based writer cannot write null keys
List<TestColumn> testColumns = TEST_COLUMNS.stream().filter(TestHiveFileFormats::withoutNullMapKeyTests).collect(toList());
assertThatFileFormat(ORC).withColumns(testColumns).withRowsCount(rowCount).withSession(session).withFileSizePadding(fileSizePadding).withFileWriterFactory(new OrcFileWriterFactory(HDFS_ENVIRONMENT, TESTING_TYPE_MANAGER, new NodeVersion("test"), STATS, new OrcWriterOptions())).isReadableByRecordCursor(createGenericHiveRecordCursorProvider(HDFS_ENVIRONMENT)).isReadableByPageSource(new OrcPageSourceFactory(new OrcReaderOptions(), HDFS_ENVIRONMENT, STATS, UTC));
}
use of io.trino.plugin.hive.orc.OrcFileWriterFactory in project trino by trinodb.
the class HiveWriterFactory method createWriter.
public HiveWriter createWriter(Page partitionColumns, int position, OptionalInt bucketNumber) {
if (bucketCount.isPresent()) {
checkArgument(bucketNumber.isPresent(), "Bucket not provided for bucketed table");
checkArgument(bucketNumber.getAsInt() < bucketCount.getAsInt(), "Bucket number %s must be less than bucket count %s", bucketNumber, bucketCount);
} else {
checkArgument(bucketNumber.isEmpty(), "Bucket number provided by for table that is not bucketed");
}
List<String> partitionValues = createPartitionValues(partitionColumnTypes, partitionColumns, position);
Optional<String> partitionName;
if (!partitionColumnNames.isEmpty()) {
partitionName = Optional.of(FileUtils.makePartName(partitionColumnNames, partitionValues));
} else {
partitionName = Optional.empty();
}
// attempt to get the existing partition (if this is an existing partitioned table)
Optional<Partition> partition = Optional.empty();
if (!partitionValues.isEmpty() && table != null) {
partition = pageSinkMetadataProvider.getPartition(partitionValues);
}
UpdateMode updateMode;
Properties schema;
WriteInfo writeInfo;
StorageFormat outputStorageFormat;
if (partition.isEmpty()) {
if (table == null) {
// Write to: a new partition in a new partitioned table,
// or a new unpartitioned table.
updateMode = UpdateMode.NEW;
schema = new Properties();
schema.setProperty(IOConstants.COLUMNS, dataColumns.stream().map(DataColumn::getName).collect(joining(",")));
schema.setProperty(IOConstants.COLUMNS_TYPES, dataColumns.stream().map(DataColumn::getHiveType).map(HiveType::getHiveTypeName).map(HiveTypeName::toString).collect(joining(":")));
if (partitionName.isEmpty()) {
// new unpartitioned table
writeInfo = locationService.getTableWriteInfo(locationHandle, false);
} else {
// a new partition in a new partitioned table
writeInfo = locationService.getPartitionWriteInfo(locationHandle, partition, partitionName.get());
if (!writeInfo.getWriteMode().isWritePathSameAsTargetPath()) {
// verify that the target directory for the partition does not already exist
if (HiveWriteUtils.pathExists(new HdfsContext(session), hdfsEnvironment, writeInfo.getTargetPath())) {
throw new TrinoException(HIVE_PATH_ALREADY_EXISTS, format("Target directory for new partition '%s' of table '%s.%s' already exists: %s", partitionName, schemaName, tableName, writeInfo.getTargetPath()));
}
}
}
} else {
// or an existing unpartitioned table
if (partitionName.isPresent()) {
// a new partition in an existing partitioned table
updateMode = UpdateMode.NEW;
writeInfo = locationService.getPartitionWriteInfo(locationHandle, partition, partitionName.get());
} else {
switch(insertExistingPartitionsBehavior) {
case APPEND:
updateMode = UpdateMode.APPEND;
writeInfo = locationService.getTableWriteInfo(locationHandle, false);
break;
case OVERWRITE:
updateMode = UpdateMode.OVERWRITE;
writeInfo = locationService.getTableWriteInfo(locationHandle, true);
break;
case ERROR:
throw new TrinoException(HIVE_TABLE_READ_ONLY, "Unpartitioned Hive tables are immutable");
default:
throw new IllegalArgumentException("Unsupported insert existing table behavior: " + insertExistingPartitionsBehavior);
}
}
schema = getHiveSchema(table);
}
if (partitionName.isPresent()) {
// Write to a new partition
outputStorageFormat = fromHiveStorageFormat(partitionStorageFormat);
} else {
// Write to a new/existing unpartitioned table
outputStorageFormat = fromHiveStorageFormat(tableStorageFormat);
}
} else {
switch(insertExistingPartitionsBehavior) {
// Write to: an existing partition in an existing partitioned table
case APPEND:
// Append to an existing partition
updateMode = UpdateMode.APPEND;
// Check the column types in partition schema match the column types in table schema
List<Column> tableColumns = table.getDataColumns();
List<Column> existingPartitionColumns = partition.get().getColumns();
for (int i = 0; i < min(existingPartitionColumns.size(), tableColumns.size()); i++) {
HiveType tableType = tableColumns.get(i).getType();
HiveType partitionType = existingPartitionColumns.get(i).getType();
if (!tableType.equals(partitionType)) {
throw new TrinoException(HIVE_PARTITION_SCHEMA_MISMATCH, format("" + "You are trying to write into an existing partition in a table. " + "The table schema has changed since the creation of the partition. " + "Inserting rows into such partition is not supported. " + "The column '%s' in table '%s' is declared as type '%s', " + "but partition '%s' declared column '%s' as type '%s'.", tableColumns.get(i).getName(), tableName, tableType, partitionName, existingPartitionColumns.get(i).getName(), partitionType));
}
}
HiveWriteUtils.checkPartitionIsWritable(partitionName.get(), partition.get());
outputStorageFormat = partition.get().getStorage().getStorageFormat();
schema = getHiveSchema(partition.get(), table);
writeInfo = locationService.getPartitionWriteInfo(locationHandle, partition, partitionName.get());
break;
case OVERWRITE:
// Overwrite an existing partition
//
// The behavior of overwrite considered as if first dropping the partition and inserting a new partition, thus:
// * No partition writable check is required.
// * Table schema and storage format is used for the new partition (instead of existing partition schema and storage format).
updateMode = UpdateMode.OVERWRITE;
outputStorageFormat = fromHiveStorageFormat(partitionStorageFormat);
schema = getHiveSchema(table);
writeInfo = locationService.getPartitionWriteInfo(locationHandle, Optional.empty(), partitionName.get());
break;
case ERROR:
throw new TrinoException(HIVE_PARTITION_READ_ONLY, "Cannot insert into an existing partition of Hive table: " + partitionName.get());
default:
throw new IllegalArgumentException(format("Unsupported insert existing partitions behavior: %s", insertExistingPartitionsBehavior));
}
}
additionalTableParameters.forEach(schema::setProperty);
validateSchema(partitionName, schema);
int bucketToUse = bucketNumber.isEmpty() ? 0 : bucketNumber.getAsInt();
Path path;
String fileNameWithExtension;
if (transaction.isAcidTransactionRunning()) {
String subdir = computeAcidSubdir(transaction);
Path subdirPath = new Path(writeInfo.getWritePath(), subdir);
path = createHiveBucketPath(subdirPath, bucketToUse, table.getParameters());
fileNameWithExtension = path.getName();
} else {
String fileName = computeFileName(bucketNumber);
fileNameWithExtension = fileName + getFileExtension(conf, outputStorageFormat);
path = new Path(writeInfo.getWritePath(), fileNameWithExtension);
}
boolean useAcidSchema = isCreateTransactionalTable || (table != null && isFullAcidTable(table.getParameters()));
FileWriter hiveFileWriter = null;
for (HiveFileWriterFactory fileWriterFactory : fileWriterFactories) {
Optional<FileWriter> fileWriter = fileWriterFactory.createFileWriter(path, dataColumns.stream().map(DataColumn::getName).collect(toList()), outputStorageFormat, schema, conf, session, bucketNumber, transaction, useAcidSchema, WriterKind.INSERT);
if (fileWriter.isPresent()) {
hiveFileWriter = fileWriter.get();
break;
}
}
if (hiveFileWriter == null) {
hiveFileWriter = new RecordFileWriter(path, dataColumns.stream().map(DataColumn::getName).collect(toList()), outputStorageFormat, schema, partitionStorageFormat.getEstimatedWriterMemoryUsage(), conf, typeManager, parquetTimeZone, session);
}
String writerImplementation = hiveFileWriter.getClass().getName();
Consumer<HiveWriter> onCommit = hiveWriter -> {
Optional<Long> size;
try {
size = Optional.of(hiveWriter.getWrittenBytes());
} catch (RuntimeException e) {
// Do not fail the query if file system is not available
size = Optional.empty();
}
eventClient.post(new WriteCompletedEvent(session.getQueryId(), path.toString(), schemaName, tableName, partitionName.orElse(null), outputStorageFormat.getOutputFormat(), writerImplementation, nodeManager.getCurrentNode().getVersion(), nodeManager.getCurrentNode().getHost(), session.getIdentity().getPrincipal().map(Principal::getName).orElse(null), nodeManager.getEnvironment(), sessionProperties, size.orElse(null), hiveWriter.getRowCount()));
};
if (!sortedBy.isEmpty()) {
FileSystem fileSystem;
Path tempFilePath;
if (sortedWritingTempStagingPathEnabled) {
String tempPrefix = sortedWritingTempStagingPath.replace("${USER}", new HdfsContext(session).getIdentity().getUser());
tempFilePath = new Path(tempPrefix, ".tmp-sort." + path.getParent().getName() + "." + path.getName());
} else {
tempFilePath = new Path(path.getParent(), ".tmp-sort." + path.getName());
}
try {
Configuration configuration = new Configuration(conf);
// Explicitly set the default FS to local file system to avoid getting HDFS when sortedWritingTempStagingPath specifies no scheme
configuration.set(FS_DEFAULT_NAME_KEY, "file:///");
fileSystem = hdfsEnvironment.getFileSystem(session.getIdentity(), tempFilePath, configuration);
} catch (IOException e) {
throw new TrinoException(HIVE_WRITER_OPEN_ERROR, e);
}
List<Type> types = dataColumns.stream().map(column -> column.getHiveType().getType(typeManager, getTimestampPrecision(session))).collect(toImmutableList());
Map<String, Integer> columnIndexes = new HashMap<>();
for (int i = 0; i < dataColumns.size(); i++) {
columnIndexes.put(dataColumns.get(i).getName(), i);
}
List<Integer> sortFields = new ArrayList<>();
List<SortOrder> sortOrders = new ArrayList<>();
for (SortingColumn column : sortedBy) {
Integer index = columnIndexes.get(column.getColumnName());
if (index == null) {
throw new TrinoException(HIVE_INVALID_METADATA, format("Sorting column '%s' does exist in table '%s.%s'", column.getColumnName(), schemaName, tableName));
}
sortFields.add(index);
sortOrders.add(column.getOrder().getSortOrder());
}
hiveFileWriter = new SortingFileWriter(fileSystem, tempFilePath, hiveFileWriter, sortBufferSize, maxOpenSortFiles, types, sortFields, sortOrders, pageSorter, typeManager.getTypeOperators(), OrcFileWriterFactory::createOrcDataSink);
}
return new HiveWriter(hiveFileWriter, partitionName, updateMode, fileNameWithExtension, writeInfo.getWritePath().toString(), writeInfo.getTargetPath().toString(), onCommit, hiveWriterStats);
}
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