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BinaryFileSpiller spills data to binary files without any compression.
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133 changes: 133 additions & 0 deletions
133
presto-main/src/main/java/com/facebook/presto/spiller/BinaryFileSpiller.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,133 @@ | ||
| /* | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
| package com.facebook.presto.spiller; | ||
|
|
||
| import com.facebook.presto.block.PagesSerde; | ||
| import com.facebook.presto.spi.Page; | ||
| import com.facebook.presto.spi.PrestoException; | ||
| import com.facebook.presto.spi.block.BlockEncodingSerde; | ||
| import com.google.common.io.Closer; | ||
| import com.google.common.util.concurrent.ListeningExecutorService; | ||
| import io.airlift.concurrent.MoreFutures; | ||
| import io.airlift.slice.InputStreamSliceInput; | ||
| import io.airlift.slice.OutputStreamSliceOutput; | ||
| import io.airlift.slice.RuntimeIOException; | ||
| import io.airlift.slice.SliceOutput; | ||
|
|
||
| import java.io.BufferedInputStream; | ||
| import java.io.BufferedOutputStream; | ||
| import java.io.FileInputStream; | ||
| import java.io.FileOutputStream; | ||
| import java.io.IOException; | ||
| import java.io.InputStream; | ||
| import java.nio.file.Files; | ||
| import java.nio.file.Path; | ||
| import java.nio.file.Paths; | ||
| import java.util.Iterator; | ||
| import java.util.List; | ||
| import java.util.concurrent.CompletableFuture; | ||
| import java.util.stream.IntStream; | ||
| import java.util.stream.Stream; | ||
|
|
||
| import static com.facebook.presto.spi.StandardErrorCode.GENERIC_INTERNAL_ERROR; | ||
| import static com.facebook.presto.spiller.BinarySpillerFactory.SPILL_PATH; | ||
| import static com.facebook.presto.util.ImmutableCollectors.toImmutableList; | ||
| import static java.util.Objects.requireNonNull; | ||
| import static java.util.stream.Collectors.toList; | ||
|
|
||
| public class BinaryFileSpiller | ||
| implements Spiller | ||
| { | ||
| private final Path targetDirectory; | ||
| private final Closer closer = Closer.create(); | ||
| private final BlockEncodingSerde blockEncodingSerde; | ||
|
|
||
| private int spillsCount; | ||
| private final ListeningExecutorService executor; | ||
|
|
||
| public BinaryFileSpiller(BlockEncodingSerde blockEncodingSerde, ListeningExecutorService executor) | ||
| { | ||
| this.blockEncodingSerde = requireNonNull(blockEncodingSerde, "blockEncodingSerde is null"); | ||
| this.executor = requireNonNull(executor, "executor is null"); | ||
| try { | ||
| this.targetDirectory = Files.createTempDirectory(SPILL_PATH, "presto-spill"); | ||
| } | ||
| catch (IOException e) { | ||
| throw new PrestoException(GENERIC_INTERNAL_ERROR, "Failed to create spill directory", e); | ||
| } | ||
| } | ||
|
|
||
| @Override | ||
| public CompletableFuture<?> spill(Iterator<Page> pageIterator) | ||
| { | ||
| Path spillPath = getPath(spillsCount++); | ||
|
|
||
| return MoreFutures.toCompletableFuture(executor.submit( | ||
| () -> writePages(pageIterator, spillPath) | ||
| )); | ||
| } | ||
|
|
||
| private void writePages(Iterator<Page> pageIterator, Path spillPath) | ||
| { | ||
| try (SliceOutput output = new OutputStreamSliceOutput(new BufferedOutputStream(new FileOutputStream(spillPath.toFile())))) { | ||
| PagesSerde.writePages(blockEncodingSerde, output, pageIterator); | ||
| } | ||
| catch (RuntimeIOException | IOException e) { | ||
| throw new PrestoException(GENERIC_INTERNAL_ERROR, "Failed to spill pages", e); | ||
| } | ||
| } | ||
|
|
||
| @Override | ||
| public List<Iterator<Page>> getSpills() | ||
| { | ||
| return IntStream.range(0, spillsCount) | ||
| .mapToObj(i -> readPages(getPath(i))) | ||
| .collect(toImmutableList()); | ||
| } | ||
|
|
||
| private Iterator<Page> readPages(Path spillPath) | ||
| { | ||
| try { | ||
| InputStream input = new BufferedInputStream(new FileInputStream(spillPath.toFile())); | ||
| closer.register(input); | ||
| return PagesSerde.readPages(blockEncodingSerde, new InputStreamSliceInput(input)); | ||
| } | ||
| catch (IOException e) { | ||
| throw new PrestoException(GENERIC_INTERNAL_ERROR, "Failed to read spilled pages", e); | ||
| } | ||
| } | ||
|
|
||
| @Override | ||
| public void close() | ||
| { | ||
| try (Stream<Path> list = Files.list(targetDirectory)) { | ||
| closer.close(); | ||
| for (Path path : list.collect(toList())) { | ||
| Files.delete(path); | ||
| } | ||
| Files.delete(targetDirectory); | ||
| } | ||
| catch (IOException e) { | ||
| throw new PrestoException( | ||
| GENERIC_INTERNAL_ERROR, | ||
| String.format("Failed to delete directory [%s]", targetDirectory), | ||
| e); | ||
| } | ||
| } | ||
|
|
||
| private Path getPath(int spillNumber) | ||
| { | ||
| return Paths.get(targetDirectory.toAbsolutePath().toString(), String.format("%d.bin", spillNumber)); | ||
| } | ||
| } |
58 changes: 58 additions & 0 deletions
58
presto-main/src/main/java/com/facebook/presto/spiller/BinarySpillerFactory.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,58 @@ | ||
| /* | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
|
|
||
| package com.facebook.presto.spiller; | ||
|
|
||
| import com.facebook.presto.spi.block.BlockEncodingSerde; | ||
| import com.facebook.presto.spi.type.Type; | ||
| import com.google.common.util.concurrent.ListeningExecutorService; | ||
| import com.google.common.util.concurrent.MoreExecutors; | ||
| import com.google.inject.Inject; | ||
|
|
||
| import java.nio.file.Path; | ||
| import java.nio.file.Paths; | ||
| import java.util.List; | ||
|
|
||
| import static io.airlift.concurrent.Threads.daemonThreadsNamed; | ||
| import static java.util.Objects.requireNonNull; | ||
| import static java.util.concurrent.Executors.newFixedThreadPool; | ||
|
|
||
| public class BinarySpillerFactory | ||
| implements SpillerFactory | ||
| { | ||
| public static final Path SPILL_PATH = Paths.get("/tmp/spills"); | ||
|
|
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| private final ListeningExecutorService executor; | ||
| private final BlockEncodingSerde blockEncodingSerde; | ||
|
|
||
| @Inject | ||
| public BinarySpillerFactory(BlockEncodingSerde blockEncodingSerde) | ||
| { | ||
| this(blockEncodingSerde, MoreExecutors.listeningDecorator(newFixedThreadPool(4, daemonThreadsNamed("binary-spiller-%s")))); | ||
| } | ||
|
|
||
| public BinarySpillerFactory(BlockEncodingSerde blockEncodingSerde, ListeningExecutorService executor) | ||
| { | ||
| this.blockEncodingSerde = requireNonNull(blockEncodingSerde, "blockEncodingSerde is null"); | ||
| this.executor = requireNonNull(executor, "executor is null"); | ||
|
|
||
| SPILL_PATH.toFile().mkdirs(); | ||
| } | ||
|
|
||
| @Override | ||
| public Spiller create(List<Type> types) | ||
| { | ||
| return new BinaryFileSpiller(blockEncodingSerde, executor); | ||
| } | ||
| } |
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