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ARTEMIS-906 Memory Mapped JournalType

This commit is contained in:
Francesco Nigro 2016-12-16 11:12:22 +01:00 committed by Clebert Suconic
parent ef8cb60df7
commit aacddfda61
20 changed files with 1667 additions and 122 deletions
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7
artemis-cli/src/main/java/org/apache/activemq/artemis/cli/commands/Create.java
View File

@ -216,6 +216,9 @@ public class Create extends InputAbstract {
@Option(name = "--nio", description = "sets the journal as nio.")
boolean nio;
@Option(name = "--mapped", description = "Sets the journal as mapped.")
boolean mapped;
// this is used by the setupJournalType method
private JournalType journalType;
@ -797,7 +800,7 @@ public class Create extends InputAbstract {
}
private void setupJournalType() {
int countJournalTypes = countBoolean(aio, nio);
int countJournalTypes = countBoolean(aio, nio, mapped);
if (countJournalTypes > 1) {
throw new RuntimeException("You can only select one journal type (--nio | --aio | --mapped).");
}
@ -814,6 +817,8 @@ public class Create extends InputAbstract {
journalType = JournalType.ASYNCIO;
} else if (nio) {
journalType = JournalType.NIO;
} else if (mapped) {
journalType = JournalType.MAPPED;
}
}

12
artemis-cli/src/main/java/org/apache/activemq/artemis/cli/commands/util/SyncCalculation.java
View File

@ -24,9 +24,11 @@ import java.text.DecimalFormat;
import java.util.concurrent.TimeUnit;
import org.apache.activemq.artemis.core.io.IOCallback;
import org.apache.activemq.artemis.core.io.IOCriticalErrorListener;
import org.apache.activemq.artemis.core.io.SequentialFile;
import org.apache.activemq.artemis.core.io.SequentialFileFactory;
import org.apache.activemq.artemis.core.io.aio.AIOSequentialFileFactory;
import org.apache.activemq.artemis.core.io.mapped.MappedSequentialFileFactory;
import org.apache.activemq.artemis.core.io.nio.NIOSequentialFileFactory;
import org.apache.activemq.artemis.core.server.ActiveMQMessageBundle;
import org.apache.activemq.artemis.core.server.JournalType;
@ -186,6 +188,16 @@ public class SyncCalculation {
factory.start();
((AIOSequentialFileFactory) factory).disableBufferReuse();
return factory;
case MAPPED:
factory = new MappedSequentialFileFactory(datafolder, new IOCriticalErrorListener() {
@Override
public void onIOException(Throwable code, String message, SequentialFile file) {
}
}, true).chunkBytes(fileSize).overlapBytes(0).setDatasync(datasync);
factory.start();
return factory;
default:
throw ActiveMQMessageBundle.BUNDLE.invalidJournalType2(journalType);
}

371
artemis-journal/src/main/java/io/netty/buffer/UnpooledUnsafeDirectByteBufWrapper.java Normal file
View File

@ -0,0 +1,371 @@
/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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 io.netty.buffer;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.nio.ByteBuffer;
import java.nio.ByteOrder;
import java.nio.channels.FileChannel;
import java.nio.channels.GatheringByteChannel;
import java.nio.channels.ScatteringByteChannel;
import io.netty.util.internal.PlatformDependent;
/**
* A NIO direct {@link ByteBuffer} wrapper.
* Only ByteBuffer's manipulation operations are supported.
* Is best suited only for encoding/decoding purposes.
*/
public final class UnpooledUnsafeDirectByteBufWrapper extends AbstractReferenceCountedByteBuf {
private ByteBuffer buffer;
private long memoryAddress;
/**
* Creates a new direct buffer by wrapping the specified initial buffer.
*/
public UnpooledUnsafeDirectByteBufWrapper() {
super(0);
this.buffer = null;
this.memoryAddress = 0L;
}
public void wrap(ByteBuffer buffer, int srcIndex, int length) {
if (buffer != null) {
this.buffer = buffer;
this.memoryAddress = PlatformDependent.directBufferAddress(buffer) + srcIndex;
clear();
maxCapacity(length);
} else {
reset();
}
}
public void reset() {
this.buffer = null;
this.memoryAddress = 0L;
clear();
maxCapacity(0);
}
@Override
public boolean isDirect() {
return true;
}
@Override
public int capacity() {
return maxCapacity();
}
@Override
public ByteBuf capacity(int newCapacity) {
if (newCapacity != maxCapacity()) {
throw new IllegalArgumentException("can't set a capacity different from the max allowed one");
}
return this;
}
@Override
public ByteBufAllocator alloc() {
return null;
}
@Override
public ByteOrder order() {
return ByteOrder.BIG_ENDIAN;
}
@Override
public boolean hasArray() {
return false;
}
@Override
public byte[] array() {
throw new UnsupportedOperationException("direct buffer");
}
@Override
public int arrayOffset() {
throw new UnsupportedOperationException("direct buffer");
}
@Override
public boolean hasMemoryAddress() {
return true;
}
@Override
public long memoryAddress() {
return memoryAddress;
}
@Override
protected byte _getByte(int index) {
return UnsafeByteBufUtil.getByte(addr(index));
}
@Override
protected short _getShort(int index) {
return UnsafeByteBufUtil.getShort(addr(index));
}
@Override
protected short _getShortLE(int index) {
return UnsafeByteBufUtil.getShortLE(addr(index));
}
@Override
protected int _getUnsignedMedium(int index) {
return UnsafeByteBufUtil.getUnsignedMedium(addr(index));
}
@Override
protected int _getUnsignedMediumLE(int index) {
return UnsafeByteBufUtil.getUnsignedMediumLE(addr(index));
}
@Override
protected int _getInt(int index) {
return UnsafeByteBufUtil.getInt(addr(index));
}
@Override
protected int _getIntLE(int index) {
return UnsafeByteBufUtil.getIntLE(addr(index));
}
@Override
protected long _getLong(int index) {
return UnsafeByteBufUtil.getLong(addr(index));
}
@Override
protected long _getLongLE(int index) {
return UnsafeByteBufUtil.getLongLE(addr(index));
}
@Override
public ByteBuf getBytes(int index, ByteBuf dst, int dstIndex, int length) {
UnsafeByteBufUtil.getBytes(this, addr(index), index, dst, dstIndex, length);
return this;
}
@Override
public ByteBuf getBytes(int index, byte[] dst, int dstIndex, int length) {
UnsafeByteBufUtil.getBytes(this, addr(index), index, dst, dstIndex, length);
return this;
}
@Override
public ByteBuf getBytes(int index, ByteBuffer dst) {
UnsafeByteBufUtil.getBytes(this, addr(index), index, dst);
return this;
}
@Override
public ByteBuf readBytes(ByteBuffer dst) {
int length = dst.remaining();
checkReadableBytes(length);
getBytes(readerIndex, dst);
readerIndex += length;
return this;
}
@Override
protected void _setByte(int index, int value) {
UnsafeByteBufUtil.setByte(addr(index), value);
}
@Override
protected void _setShort(int index, int value) {
UnsafeByteBufUtil.setShort(addr(index), value);
}
@Override
protected void _setShortLE(int index, int value) {
UnsafeByteBufUtil.setShortLE(addr(index), value);
}
@Override
protected void _setMedium(int index, int value) {
UnsafeByteBufUtil.setMedium(addr(index), value);
}
@Override
protected void _setMediumLE(int index, int value) {
UnsafeByteBufUtil.setMediumLE(addr(index), value);
}
@Override
protected void _setInt(int index, int value) {
UnsafeByteBufUtil.setInt(addr(index), value);
}
@Override
protected void _setIntLE(int index, int value) {
UnsafeByteBufUtil.setIntLE(addr(index), value);
}
@Override
protected void _setLong(int index, long value) {
UnsafeByteBufUtil.setLong(addr(index), value);
}
@Override
protected void _setLongLE(int index, long value) {
UnsafeByteBufUtil.setLongLE(addr(index), value);
}
@Override
public ByteBuf setBytes(int index, ByteBuf src, int srcIndex, int length) {
UnsafeByteBufUtil.setBytes(this, addr(index), index, src, srcIndex, length);
return this;
}
@Override
public ByteBuf setBytes(int index, byte[] src, int srcIndex, int length) {
UnsafeByteBufUtil.setBytes(this, addr(index), index, src, srcIndex, length);
return this;
}
@Override
public ByteBuf setBytes(int index, ByteBuffer src) {
UnsafeByteBufUtil.setBytes(this, addr(index), index, src);
return this;
}
@Override
@Deprecated
public ByteBuf getBytes(int index, OutputStream out, int length) throws IOException {
throw new UnsupportedOperationException("unsupported!");
}
@Override
@Deprecated
public int getBytes(int index, GatheringByteChannel out, int length) throws IOException {
throw new UnsupportedOperationException("unsupported!");
}
@Override
@Deprecated
public int getBytes(int index, FileChannel out, long position, int length) throws IOException {
throw new UnsupportedOperationException("unsupported!");
}
@Override
@Deprecated
public int readBytes(GatheringByteChannel out, int length) throws IOException {
throw new UnsupportedOperationException("unsupported!");
}
@Override
@Deprecated
public int readBytes(FileChannel out, long position, int length) throws IOException {
throw new UnsupportedOperationException("unsupported!");
}
@Override
@Deprecated
public int setBytes(int index, InputStream in, int length) throws IOException {
throw new UnsupportedOperationException("unsupported!");
}
@Override
@Deprecated
public int setBytes(int index, ScatteringByteChannel in, int length) throws IOException {
throw new UnsupportedOperationException("unsupported!");
}
@Override
@Deprecated
public int setBytes(int index, FileChannel in, long position, int length) throws IOException {
throw new UnsupportedOperationException("unsupported!");
}
@Override
public int nioBufferCount() {
return 1;
}
@Override
@Deprecated
public ByteBuffer[] nioBuffers(int index, int length) {
throw new UnsupportedOperationException("unsupported!");
}
@Override
@Deprecated
public ByteBuf copy(int index, int length) {
throw new UnsupportedOperationException("unsupported!");
}
@Override
@Deprecated
public ByteBuffer internalNioBuffer(int index, int length) {
throw new UnsupportedOperationException("cannot access directly the wrapped buffer!");
}
@Override
@Deprecated
public ByteBuffer nioBuffer(int index, int length) {
throw new UnsupportedOperationException("unsupported!");
}
@Override
@Deprecated
protected void deallocate() {
//NO_OP
}
@Override
public ByteBuf unwrap() {
return null;
}
private long addr(int index) {
return memoryAddress + index;
}
@Override
@Deprecated
protected SwappedByteBuf newSwappedByteBuf() {
throw new UnsupportedOperationException("unsupported!");
}
@Override
public ByteBuf setZero(int index, int length) {
UnsafeByteBufUtil.setZero(this, addr(index), index, length);
return this;
}
@Override
public ByteBuf writeZero(int length) {
ensureWritable(length);
int wIndex = writerIndex;
setZero(wIndex, length);
writerIndex = wIndex + length;
return this;
}
}

95
artemis-journal/src/main/java/org/apache/activemq/artemis/core/io/mapped/MappedFile.java
View File

@ -20,18 +20,19 @@ import java.io.File;
import java.io.IOException;
import java.nio.BufferUnderflowException;
import java.nio.ByteBuffer;
import java.nio.ByteOrder;
import java.nio.MappedByteBuffer;
import io.netty.buffer.ByteBuf;
import io.netty.buffer.UnpooledUnsafeDirectByteBufWrapper;
import io.netty.util.internal.PlatformDependent;
import org.apache.activemq.artemis.core.buffers.impl.ChannelBufferWrapper;
import org.apache.activemq.artemis.core.journal.EncodingSupport;
final class MappedFile implements AutoCloseable {
private static final ByteBuffer ZERO_PAGE = ByteBuffer.allocateDirect(MappedByteBufferCache.PAGE_SIZE).order(ByteOrder.nativeOrder());
private final MappedByteBufferCache cache;
private final int zerosMaxPage;
private final UnpooledUnsafeDirectByteBufWrapper byteBufWrapper;
private final ChannelBufferWrapper channelBufferWrapper;
private MappedByteBuffer lastMapped;
private long lastMappedStart;
private long lastMappedLimit;
@ -45,7 +46,8 @@ final class MappedFile implements AutoCloseable {
this.lastMappedLimit = -1;
this.position = 0;
this.length = this.cache.fileSize();
this.zerosMaxPage = Math.min(ZERO_PAGE.capacity(), (int) Math.min(Integer.MAX_VALUE, cache.overlapBytes()));
this.byteBufWrapper = new UnpooledUnsafeDirectByteBufWrapper();
this.channelBufferWrapper = new ChannelBufferWrapper(this.byteBufWrapper, false);
}
public static MappedFile of(File file, long chunckSize, long overlapSize) throws IOException {
@ -58,29 +60,33 @@ final class MappedFile implements AutoCloseable {
private int checkOffset(long offset, int bytes) throws BufferUnderflowException, IOException {
if (!MappedByteBufferCache.inside(offset, lastMappedStart, lastMappedLimit)) {
try {
final int index = cache.indexFor(offset);
final long mappedPosition = cache.mappedPositionFor(index);
final long mappedLimit = cache.mappedLimitFor(mappedPosition);
if (offset + bytes > mappedLimit) {
throw new IOException("mapping overflow!");
}
lastMapped = cache.acquireMappedByteBuffer(index);
lastMappedStart = mappedPosition;
lastMappedLimit = mappedLimit;
final int bufferPosition = (int) (offset - mappedPosition);
return bufferPosition;
} catch (IllegalStateException e) {
throw new IOException(e);
} catch (IllegalArgumentException e) {
throw new BufferUnderflowException();
}
return updateOffset(offset, bytes);
} else {
final int bufferPosition = (int) (offset - lastMappedStart);
return bufferPosition;
}
}
private int updateOffset(long offset, int bytes) throws BufferUnderflowException, IOException {
try {
final int index = cache.indexFor(offset);
final long mappedPosition = cache.mappedPositionFor(index);
final long mappedLimit = cache.mappedLimitFor(mappedPosition);
if (offset + bytes > mappedLimit) {
throw new IOException("mapping overflow!");
}
lastMapped = cache.acquireMappedByteBuffer(index);
lastMappedStart = mappedPosition;
lastMappedLimit = mappedLimit;
final int bufferPosition = (int) (offset - mappedPosition);
return bufferPosition;
} catch (IllegalStateException e) {
throw new IOException(e);
} catch (IllegalArgumentException e) {
throw new BufferUnderflowException();
}
}
public void force() {
if (lastMapped != null) {
lastMapped.force();
@ -179,6 +185,26 @@ final class MappedFile implements AutoCloseable {
return read;
}
/**
* Writes an encoded sequence of bytes to this file from the given buffer.
* <p>
* <p> Bytes are written starting at this file's current position,
*/
public void write(EncodingSupport encodingSupport) throws IOException {
final int encodedSize = encodingSupport.getEncodeSize();
final int bufferPosition = checkOffset(position, encodedSize);
this.byteBufWrapper.wrap(this.lastMapped, bufferPosition, encodedSize);
try {
encodingSupport.encode(this.channelBufferWrapper);
} finally {
this.byteBufWrapper.reset();
}
position += encodedSize;
if (position > this.length) {
this.length = position;
}
}
/**
* Writes a sequence of bytes to this file from the given buffer.
* <p>
@ -273,21 +299,20 @@ final class MappedFile implements AutoCloseable {
* <p> Bytes are written starting at this file's current position,
*/
public void zeros(long offset, int count) throws IOException {
final long targetOffset = offset + count;
final int zerosBulkCopies = count / zerosMaxPage;
final long srcAddress = PlatformDependent.directBufferAddress(ZERO_PAGE);
for (int i = 0; i < zerosBulkCopies; i++) {
final int bufferPosition = checkOffset(offset, zerosMaxPage);
while (count > 0) {
//do not need to validate the bytes count
final int bufferPosition = checkOffset(offset, 0);
final int endZerosPosition = (int)Math.min((long)bufferPosition + count, lastMapped.capacity());
final int zeros = endZerosPosition - bufferPosition;
final long destAddress = PlatformDependent.directBufferAddress(lastMapped) + bufferPosition;
PlatformDependent.copyMemory(srcAddress, destAddress, zerosMaxPage);
offset += zerosMaxPage;
PlatformDependent.setMemory(destAddress, zeros, (byte) 0);
offset += zeros;
count -= zeros;
//TODO need to call force on each write?
//this.force();
}
final int remainingToBeZeroes = (int) (targetOffset - offset);
final int bufferPosition = checkOffset(offset, remainingToBeZeroes);
final long destAddress = PlatformDependent.directBufferAddress(lastMapped) + bufferPosition;
PlatformDependent.copyMemory(srcAddress, destAddress, remainingToBeZeroes);
if (targetOffset > this.length) {
this.length = targetOffset;
if (offset > this.length) {
this.length = offset;
}
}

92
artemis-journal/src/main/java/org/apache/activemq/artemis/core/io/mapped/MappedSequentialFile.java
View File

@ -20,16 +20,13 @@ import java.io.File;
import java.io.IOException;
import java.io.RandomAccessFile;
import java.nio.ByteBuffer;
import java.nio.ByteOrder;
import java.nio.channels.FileChannel;
import java.nio.channels.FileLock;
import io.netty.buffer.ByteBuf;
import io.netty.buffer.Unpooled;
import org.apache.activemq.artemis.api.core.ActiveMQBuffer;
import org.apache.activemq.artemis.api.core.ActiveMQExceptionType;
import org.apache.activemq.artemis.api.core.ActiveMQIOErrorException;
import org.apache.activemq.artemis.core.buffers.impl.ChannelBufferWrapper;
import org.apache.activemq.artemis.core.io.IOCallback;
import org.apache.activemq.artemis.core.io.IOCriticalErrorListener;
import org.apache.activemq.artemis.core.io.SequentialFile;
@ -44,12 +41,11 @@ final class MappedSequentialFile implements SequentialFile {
private final long chunkBytes;
private final long overlapBytes;
private final IOCriticalErrorListener criticalErrorListener;
private final MappedSequentialFileFactory factory;
private File file;
private File absoluteFile;
private String fileName;
private MappedFile mappedFile;
private ActiveMQBuffer pooledActiveMQBuffer;
private final MappedSequentialFileFactory factory;
MappedSequentialFile(MappedSequentialFileFactory factory,
final File directory,
@ -65,19 +61,24 @@ final class MappedSequentialFile implements SequentialFile {
this.chunkBytes = chunkBytes;
this.overlapBytes = overlapBytes;
this.mappedFile = null;
this.pooledActiveMQBuffer = null;
this.criticalErrorListener = criticalErrorListener;
}
private void checkIsOpen() {
if (!isOpen()) {
throw new IllegalStateException("must be open!");
throw new IllegalStateException("File not opened!");
}
}
private void checkIsOpen(IOCallback callback) {
if (!isOpen()) {
callback.onError(ActiveMQExceptionType.IO_ERROR.getCode(), "File not opened");
}
}
private void checkIsNotOpen() {
if (isOpen()) {
throw new IllegalStateException("must be closed!");
throw new IllegalStateException("File opened!");
}
}
@ -101,7 +102,6 @@ final class MappedSequentialFile implements SequentialFile {
@Override
public void open(int maxIO, boolean useExecutor) throws IOException {
//ignore maxIO e useExecutor
ActiveMQJournalLogger.LOGGER.warn("ignoring maxIO and useExecutor unsupported parameters!");
this.open();
}
@ -134,7 +134,7 @@ final class MappedSequentialFile implements SequentialFile {
@Override
public void delete() {
checkIsNotOpen();
close();
if (file.exists() && !file.delete()) {
ActiveMQJournalLogger.LOGGER.errorDeletingFile(this);
}
@ -142,10 +142,10 @@ final class MappedSequentialFile implements SequentialFile {
@Override
public void write(ActiveMQBuffer bytes, boolean sync, IOCallback callback) throws IOException {
checkIsOpen();
if (callback == null) {
throw new NullPointerException("callback parameter need to be set");
}
checkIsOpen(callback);
try {
final ByteBuf byteBuf = bytes.byteBuf();
final int writerIndex = byteBuf.writerIndex();
@ -182,34 +182,16 @@ final class MappedSequentialFile implements SequentialFile {
}
}
private ActiveMQBuffer acquiresActiveMQBufferWithAtLeast(int size) {
if (this.pooledActiveMQBuffer == null || this.pooledActiveMQBuffer.capacity() < size) {
this.pooledActiveMQBuffer = new ChannelBufferWrapper(Unpooled.directBuffer(size, size).order(ByteOrder.nativeOrder()));
} else {
this.pooledActiveMQBuffer.clear();
}
return pooledActiveMQBuffer;
}
@Override
public void write(EncodingSupport bytes, boolean sync, IOCallback callback) throws IOException {
checkIsOpen();
if (callback == null) {
throw new NullPointerException("callback parameter need to be set");
}
checkIsOpen(callback);
try {
final int encodedSize = bytes.getEncodeSize();
final ActiveMQBuffer outBuffer = acquiresActiveMQBufferWithAtLeast(encodedSize);
bytes.encode(outBuffer);
final ByteBuf byteBuf = outBuffer.byteBuf();
final int writerIndex = byteBuf.writerIndex();
final int readerIndex = byteBuf.readerIndex();
final int readableBytes = writerIndex - readerIndex;
if (readableBytes > 0) {
this.mappedFile.write(byteBuf, readerIndex, readableBytes);
if (factory.isDatasync() && sync) {
this.mappedFile.force();
}
this.mappedFile.write(bytes);
if (factory.isDatasync() && sync) {
this.mappedFile.force();
}
callback.done();
} catch (IOException e) {
@ -224,33 +206,26 @@ final class MappedSequentialFile implements SequentialFile {
@Override
public void write(EncodingSupport bytes, boolean sync) throws IOException {
checkIsOpen();
final int encodedSize = bytes.getEncodeSize();
final ActiveMQBuffer outBuffer = acquiresActiveMQBufferWithAtLeast(encodedSize);
bytes.encode(outBuffer);
final ByteBuf byteBuf = outBuffer.byteBuf();
final int writerIndex = byteBuf.writerIndex();
final int readerIndex = byteBuf.readerIndex();
final int readableBytes = writerIndex - readerIndex;
if (readableBytes > 0) {
this.mappedFile.write(byteBuf, readerIndex, readableBytes);
if (factory.isDatasync() && sync) {
this.mappedFile.force();
}
this.mappedFile.write(bytes);
if (factory.isDatasync() && sync) {
this.mappedFile.force();
}
}
@Override
public void writeDirect(ByteBuffer bytes, boolean sync, IOCallback callback) {
checkIsOpen();
if (callback == null) {
throw new NullPointerException("callback parameter need to be set");
}
checkIsOpen(callback);
try {
final int position = bytes.position();
final int limit = bytes.limit();
final int remaining = limit - position;
if (remaining > 0) {
this.mappedFile.write(bytes, position, remaining);
final int newPosition = position + remaining;
bytes.position(newPosition);
if (factory.isDatasync() && sync) {
this.mappedFile.force();
}
@ -273,6 +248,8 @@ final class MappedSequentialFile implements SequentialFile {
final int remaining = limit - position;
if (remaining > 0) {
this.mappedFile.write(bytes, position, remaining);
final int newPosition = position + remaining;
bytes.position(newPosition);
if (factory.isDatasync() && sync) {
this.mappedFile.force();
}
@ -281,10 +258,10 @@ final class MappedSequentialFile implements SequentialFile {
@Override
public int read(ByteBuffer bytes, IOCallback callback) throws IOException {
checkIsOpen();
if (callback == null) {
throw new NullPointerException("callback parameter need to be set");
}
checkIsOpen(callback);
try {
final int position = bytes.position();
final int limit = bytes.limit();
@ -296,8 +273,10 @@ final class MappedSequentialFile implements SequentialFile {
bytes.flip();
callback.done();
return bytesRead;
} else {
callback.done();
return 0;
}
return 0;
} catch (IOException e) {
if (this.criticalErrorListener != null) {
this.criticalErrorListener.onIOException(new ActiveMQIOErrorException(e.getMessage(), e), e.getMessage(), this);
@ -360,7 +339,14 @@ final class MappedSequentialFile implements SequentialFile {
@Override
public void renameTo(String newFileName) throws Exception {
checkIsNotOpen();
try {
close();
} catch (Exception e) {
if (e instanceof IOException) {
factory.onIOError(new ActiveMQIOErrorException(e.getMessage(), e), e.getMessage(), this);
}
throw e;
}
if (this.fileName == null) {
this.fileName = this.file.getName();
}
@ -388,14 +374,10 @@ final class MappedSequentialFile implements SequentialFile {
if (dstFile.isOpen()) {
throw new IllegalArgumentException("dstFile must be closed too");
}
try (RandomAccessFile src = new RandomAccessFile(file, "rw");
FileChannel srcChannel = src.getChannel();
FileLock srcLock = srcChannel.lock()) {
try (RandomAccessFile src = new RandomAccessFile(file, "rw"); FileChannel srcChannel = src.getChannel(); FileLock srcLock = srcChannel.lock()) {
final long readableBytes = srcChannel.size();
if (readableBytes > 0) {
try (RandomAccessFile dst = new RandomAccessFile(dstFile.getJavaFile(), "rw");
FileChannel dstChannel = dst.getChannel();
FileLock dstLock = dstChannel.lock()) {
try (RandomAccessFile dst = new RandomAccessFile(dstFile.getJavaFile(), "rw"); FileChannel dstChannel = dst.getChannel(); FileLock dstLock = dstChannel.lock()) {
final long oldLength = dst.length();
final long newLength = oldLength + readableBytes;
dst.setLength(newLength);

75
artemis-journal/src/main/java/org/apache/activemq/artemis/core/io/mapped/MappedSequentialFileFactory.java
View File

@ -20,7 +20,6 @@ import java.io.File;
import java.io.FilenameFilter;
import java.io.IOException;
import java.nio.ByteBuffer;
import java.nio.ByteOrder;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
@ -29,30 +28,42 @@ import io.netty.util.internal.PlatformDependent;
import org.apache.activemq.artemis.core.io.IOCriticalErrorListener;
import org.apache.activemq.artemis.core.io.SequentialFile;
import org.apache.activemq.artemis.core.io.SequentialFileFactory;
import org.apache.activemq.artemis.core.io.buffer.TimedBuffer;
public final class MappedSequentialFileFactory implements SequentialFileFactory {
private static long DEFAULT_BLOCK_SIZE = 64L << 20;
private final File directory;
private final IOCriticalErrorListener criticalErrorListener;
private final TimedBuffer timedBuffer;
private long chunkBytes;
private long overlapBytes;
private boolean useDataSync;
private boolean supportCallbacks;
public MappedSequentialFileFactory(File directory, IOCriticalErrorListener criticalErrorListener) {
protected volatile int alignment = -1;
public MappedSequentialFileFactory(File directory,
IOCriticalErrorListener criticalErrorListener,
boolean supportCallbacks) {
this.directory = directory;
this.criticalErrorListener = criticalErrorListener;
this.chunkBytes = DEFAULT_BLOCK_SIZE;
this.overlapBytes = DEFAULT_BLOCK_SIZE / 4;
this.useDataSync = true;
this.timedBuffer = null;
this.supportCallbacks = supportCallbacks;
}
public MappedSequentialFileFactory(File directory, IOCriticalErrorListener criticalErrorListener) {
this(directory, criticalErrorListener, false);
}
public MappedSequentialFileFactory(File directory) {
this.directory = directory;
this.criticalErrorListener = null;
this.chunkBytes = DEFAULT_BLOCK_SIZE;
this.overlapBytes = DEFAULT_BLOCK_SIZE / 4;
this(directory, null);
}
public long chunkBytes() {
return chunkBytes;
}
@ -73,7 +84,12 @@ public final class MappedSequentialFileFactory implements SequentialFileFactory
@Override
public SequentialFile createSequentialFile(String fileName) {
return new MappedSequentialFile(this, directory, new File(directory, fileName), chunkBytes, overlapBytes, criticalErrorListener);
final MappedSequentialFile mappedSequentialFile = new MappedSequentialFile(this, directory, new File(directory, fileName), chunkBytes, overlapBytes, criticalErrorListener);
if (this.timedBuffer == null) {
return mappedSequentialFile;
} else {
return new TimedSequentialFile(this, mappedSequentialFile);
}
}
@Override
@ -89,17 +105,12 @@ public final class MappedSequentialFileFactory implements SequentialFileFactory
@Override
public int getMaxIO() {
return 0;
return 1;
}
@Override
public List<String> listFiles(final String extension) throws Exception {
final FilenameFilter extensionFilter = new FilenameFilter() {
@Override
public boolean accept(final File file, final String name) {
return name.endsWith("." + extension);
}
};
final FilenameFilter extensionFilter = (file, name) -> name.endsWith("." + extension);
final String[] fileNames = directory.list(extensionFilter);
if (fileNames == null) {
return Collections.EMPTY_LIST;
@ -109,7 +120,7 @@ public final class MappedSequentialFileFactory implements SequentialFileFactory
@Override
public boolean isSupportsCallbacks() {
return false;
return this.supportCallbacks;
}
@Override
@ -121,7 +132,7 @@ public final class MappedSequentialFileFactory implements SequentialFileFactory
@Override
public ByteBuffer allocateDirectBuffer(final int size) {
return ByteBuffer.allocateDirect(size).order(ByteOrder.nativeOrder());
return ByteBuffer.allocateDirect(size);
}
@Override
@ -131,7 +142,7 @@ public final class MappedSequentialFileFactory implements SequentialFileFactory
@Override
public ByteBuffer newBuffer(final int size) {
return ByteBuffer.allocateDirect(size).order(ByteOrder.nativeOrder());
return ByteBuffer.allocate(size);
}
@Override
@ -143,17 +154,23 @@ public final class MappedSequentialFileFactory implements SequentialFileFactory
@Override
public void activateBuffer(SequentialFile file) {
if (timedBuffer != null) {
file.setTimedBuffer(timedBuffer);
}
}
@Override
public void deactivateBuffer() {
if (timedBuffer != null) {
// When moving to a new file, we need to make sure any pending buffer will be transferred to the buffer
timedBuffer.flush();
timedBuffer.setObserver(null);
}
}
@Override
public ByteBuffer wrapBuffer(final byte[] bytes) {
return ByteBuffer.wrap(bytes).order(ByteOrder.nativeOrder());
return ByteBuffer.wrap(bytes);
}
@Override
@ -162,8 +179,8 @@ public final class MappedSequentialFileFactory implements SequentialFileFactory
}
@Override
public SequentialFileFactory setAlignment(int alignment) {
// no op
public MappedSequentialFileFactory setAlignment(int alignment) {
this.alignment = alignment;
return this;
}
@ -179,7 +196,6 @@ public final class MappedSequentialFileFactory implements SequentialFileFactory
@Override
public void clearBuffer(final ByteBuffer buffer) {
buffer.clear();
if (buffer.isDirect()) {
BytesUtils.zerosDirect(buffer);
} else if (buffer.hasArray()) {
@ -193,16 +209,21 @@ public final class MappedSequentialFileFactory implements SequentialFileFactory
buffer.put(i, (byte) 0);
}
}
buffer.rewind();
}
@Override
public void start() {
if (timedBuffer != null) {
timedBuffer.start();
}
}
@Override
public void stop() {
if (timedBuffer != null) {
timedBuffer.stop();
}
}
@Override
@ -215,6 +236,8 @@ public final class MappedSequentialFileFactory implements SequentialFileFactory
@Override
public void flush() {
if (timedBuffer != null) {
timedBuffer.flush();
}
}
}

377
artemis-journal/src/main/java/org/apache/activemq/artemis/core/io/mapped/TimedSequentialFile.java Normal file
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@ -0,0 +1,377 @@
/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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 org.apache.activemq.artemis.core.io.mapped;
import java.io.File;
import java.io.IOException;
import java.nio.ByteBuffer;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.BrokenBarrierException;
import java.util.concurrent.CyclicBarrier;
import org.apache.activemq.artemis.api.core.ActiveMQBuffer;
import org.apache.activemq.artemis.api.core.ActiveMQException;
import org.apache.activemq.artemis.api.core.ActiveMQExceptionType;
import org.apache.activemq.artemis.core.io.DummyCallback;
import org.apache.activemq.artemis.core.io.IOCallback;
import org.apache.activemq.artemis.core.io.SequentialFile;
import org.apache.activemq.artemis.core.io.SequentialFileFactory;
import org.apache.activemq.artemis.core.io.buffer.TimedBuffer;
import org.apache.activemq.artemis.core.io.buffer.TimedBufferObserver;
import org.apache.activemq.artemis.core.journal.EncodingSupport;
import org.apache.activemq.artemis.journal.ActiveMQJournalLogger;
final class TimedSequentialFile implements SequentialFile {
private final SequentialFileFactory factory;
private final SequentialFile sequentialFile;
private final LocalBufferObserver observer;
private final ThreadLocal<ResettableIOCallback> callbackPool;
private TimedBuffer timedBuffer;
TimedSequentialFile(SequentialFileFactory factory, SequentialFile sequentialFile) {
this.sequentialFile = sequentialFile;
this.factory = factory;
this.observer = new LocalBufferObserver();
this.callbackPool = ThreadLocal.withInitial(ResettableIOCallback::new);
}
@Override
public boolean isOpen() {
return this.sequentialFile.isOpen();
}
@Override
public boolean exists() {
return this.sequentialFile.exists();
}
@Override
public void open() throws Exception {
this.sequentialFile.open();
}
@Override
public void open(int maxIO, boolean useExecutor) throws Exception {
this.sequentialFile.open(maxIO, useExecutor);
}
@Override
public boolean fits(int size) {
if (timedBuffer == null) {
return this.sequentialFile.fits(size);
} else {
return timedBuffer.checkSize(size);
}
}
@Override
public int calculateBlockStart(int position) throws Exception {
return this.sequentialFile.calculateBlockStart(position);
}
@Override
public String getFileName() {
return this.sequentialFile.getFileName();
}
@Override
public void fill(int size) throws Exception {
this.sequentialFile.fill(size);
}
@Override
public void delete() throws IOException, InterruptedException, ActiveMQException {
this.sequentialFile.delete();
}
@Override
public void write(ActiveMQBuffer bytes, boolean sync, IOCallback callback) throws Exception {
if (this.timedBuffer != null) {
this.timedBuffer.addBytes(bytes, sync, callback);
} else {
this.sequentialFile.write(bytes, sync, callback);
}
}
@Override
public void write(ActiveMQBuffer bytes, boolean sync) throws Exception {
if (sync) {
if (this.timedBuffer != null) {
final ResettableIOCallback callback = callbackPool.get();
try {
this.timedBuffer.addBytes(bytes, true, callback);
callback.waitCompletion();
} finally {
callback.reset();
}
} else {
this.sequentialFile.write(bytes, true);
}
} else {
if (this.timedBuffer != null) {
this.timedBuffer.addBytes(bytes, false, DummyCallback.getInstance());
} else {
this.sequentialFile.write(bytes, false);
}
}
}
@Override
public void write(EncodingSupport bytes, boolean sync, IOCallback callback) throws Exception {
if (this.timedBuffer != null) {
this.timedBuffer.addBytes(bytes, sync, callback);
} else {
this.sequentialFile.write(bytes, sync, callback);
}
}
@Override
public void write(EncodingSupport bytes, boolean sync) throws Exception {
if (sync) {
if (this.timedBuffer != null) {
final ResettableIOCallback callback = callbackPool.get();
try {
this.timedBuffer.addBytes(bytes, true, callback);
callback.waitCompletion();
} finally {
callback.reset();
}
} else {
this.sequentialFile.write(bytes, true);
}
} else {
if (this.timedBuffer != null) {
this.timedBuffer.addBytes(bytes, false, DummyCallback.getInstance());
} else {
this.sequentialFile.write(bytes, false);
}
}
}
@Override
public void writeDirect(ByteBuffer bytes, boolean sync, IOCallback callback) {
this.sequentialFile.writeDirect(bytes, sync, callback);
}
@Override
public void writeDirect(ByteBuffer bytes, boolean sync) throws Exception {
this.sequentialFile.writeDirect(bytes, sync);
}
@Override
public int read(ByteBuffer bytes, IOCallback callback) throws Exception {
return this.sequentialFile.read(bytes, callback);
}
@Override
public int read(ByteBuffer bytes) throws Exception {
return this.sequentialFile.read(bytes);
}
@Override
public void position(long pos) throws IOException {
this.sequentialFile.position(pos);
}
@Override
public long position() {
return this.sequentialFile.position();
}
@Override
public void close() throws Exception {
this.sequentialFile.close();
}
@Override
public void sync() throws IOException {
this.sequentialFile.sync();
}
@Override
public long size() throws Exception {
return this.sequentialFile.size();
}
@Override
public void renameTo(String newFileName) throws Exception {
this.sequentialFile.renameTo(newFileName);
}
@Override
public SequentialFile cloneFile() {
return new TimedSequentialFile(factory, this.sequentialFile.cloneFile());
}
@Override
public void copyTo(SequentialFile newFileName) throws Exception {
this.sequentialFile.copyTo(newFileName);
}
@Override
public void setTimedBuffer(TimedBuffer buffer) {
if (this.timedBuffer != null) {
this.timedBuffer.setObserver(null);
}
this.timedBuffer = buffer;
if (buffer != null) {
buffer.setObserver(this.observer);
}
}
@Override
public File getJavaFile() {
return this.sequentialFile.getJavaFile();
}
private static final class ResettableIOCallback implements IOCallback {
private final CyclicBarrier cyclicBarrier;
private int errorCode;
private String errorMessage;
ResettableIOCallback() {
this.cyclicBarrier = new CyclicBarrier(2);
}
public void waitCompletion() throws InterruptedException, ActiveMQException, BrokenBarrierException {
this.cyclicBarrier.await();
if (this.errorMessage != null) {
throw ActiveMQExceptionType.createException(this.errorCode, this.errorMessage);
}
}
public void reset() {
this.errorCode = 0;
this.errorMessage = null;
}
@Override
public void done() {
try {
this.cyclicBarrier.await();
} catch (BrokenBarrierException | InterruptedException e) {
throw new IllegalStateException(e);
}
}
@Override
public void onError(int errorCode, String errorMessage) {
try {
this.errorCode = errorCode;
this.errorMessage = errorMessage;
this.cyclicBarrier.await();
} catch (BrokenBarrierException | InterruptedException e) {
throw new IllegalStateException(e);
}
}
}
private static final class DelegateCallback implements IOCallback {
final List<IOCallback> delegates;
private DelegateCallback() {
this.delegates = new ArrayList<>();
}
public List<IOCallback> delegates() {
return this.delegates;
}
@Override
public void done() {
final int size = delegates.size();
for (int i = 0; i < size; i++) {
try {
final IOCallback callback = delegates.get(i);
callback.done();
} catch (Throwable e) {
ActiveMQJournalLogger.LOGGER.errorCompletingCallback(e);
}
}
}
@Override
public void onError(final int errorCode, final String errorMessage) {
for (IOCallback callback : delegates) {
try {
callback.onError(errorCode, errorMessage);
} catch (Throwable e) {
ActiveMQJournalLogger.LOGGER.errorCallingErrorCallback(e);
}
}
}
}
private final class LocalBufferObserver implements TimedBufferObserver {
private final ThreadLocal<DelegateCallback> callbacksPool = ThreadLocal.withInitial(DelegateCallback::new);
@Override
public void flushBuffer(final ByteBuffer buffer, final boolean requestedSync, final List<IOCallback> callbacks) {
buffer.flip();
if (buffer.limit() == 0) {
//if there are no bytes to flush, can release the callbacks
final int size = callbacks.size();
for (int i = 0; i < size; i++) {
callbacks.get(i).done();
}
} else {
final DelegateCallback delegateCallback = callbacksPool.get();
final int size = callbacks.size();
final List<IOCallback> delegates = delegateCallback.delegates();
for (int i = 0; i < size; i++) {
delegates.add(callbacks.get(i));
}
try {
sequentialFile.writeDirect(buffer, requestedSync, delegateCallback);
} finally {
delegates.clear();
}
}
}
@Override
public ByteBuffer newBuffer(final int size, final int limit) {
final int alignedSize = factory.calculateBlockSize(size);
final int alignedLimit = factory.calculateBlockSize(limit);
final ByteBuffer buffer = factory.newBuffer(alignedSize);
buffer.limit(alignedLimit);
return buffer;
}
@Override
public int getRemainingBytes() {
try {
final int remaining = (int) Math.min(sequentialFile.size() - sequentialFile.position(), Integer.MAX_VALUE);
return remaining;
} catch (Exception e) {
throw new IllegalStateException(e);
}
}
@Override
public String toString() {
return "TimedBufferObserver on file (" + getFileName() + ")";
}
}
}

208
artemis-journal/src/test/java/org/apache/activemq/artemis/core/io/JournalTptBenchmark.java Normal file
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@ -0,0 +1,208 @@
/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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 org.apache.activemq.artemis.core.io;
import java.io.File;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.concurrent.Executor;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.locks.LockSupport;
import java.util.stream.Stream;
import io.netty.util.internal.shaded.org.jctools.queues.MpscArrayQueue;
import org.apache.activemq.artemis.ArtemisConstants;
import org.apache.activemq.artemis.api.core.ActiveMQBuffer;
import org.apache.activemq.artemis.core.io.aio.AIOSequentialFileFactory;
import org.apache.activemq.artemis.core.io.mapped.MappedSequentialFileFactory;
import org.apache.activemq.artemis.core.io.nio.NIOSequentialFileFactory;
import org.apache.activemq.artemis.core.journal.EncodingSupport;
import org.apache.activemq.artemis.core.journal.Journal;
import org.apache.activemq.artemis.core.journal.RecordInfo;
import org.apache.activemq.artemis.core.journal.impl.JournalImpl;
import org.apache.activemq.artemis.core.journal.impl.SimpleWaitIOCallback;
import org.apache.activemq.artemis.jlibaio.LibaioContext;
/**
* To benchmark Type.Aio you need to define -Djava.library.path=${project-root}/native/src/.libs when calling the JVM
*/
public class JournalTptBenchmark {
public static void main(String[] args) throws Exception {
final boolean useDefaultIoExecutor = true;
final int fileSize = 1024 * 1024;
final boolean dataSync = true;
final Type type = Type.Mapped;
final int tests = 5;
final int warmup = 20_000;
final int measurements = 20_000;
final int msgSize = 100;
final byte[] msgContent = new byte[msgSize];
Arrays.fill(msgContent, (byte) 1);
final int totalMessages = (measurements * tests + warmup);
final File tmpDirectory = new File("./");
//using the default configuration when the broker starts!
final SequentialFileFactory factory;
switch (type) {
case Mapped:
final MappedSequentialFileFactory mappedFactory = new MappedSequentialFileFactory(tmpDirectory, null, true);
factory = mappedFactory.chunkBytes(fileSize).overlapBytes(0).setDatasync(dataSync);
break;
case Nio:
factory = new NIOSequentialFileFactory(tmpDirectory, true, ArtemisConstants.DEFAULT_JOURNAL_BUFFER_SIZE_NIO, ArtemisConstants.DEFAULT_JOURNAL_BUFFER_TIMEOUT_NIO, 1, false, null).setDatasync(dataSync);
break;
case Aio:
factory = new AIOSequentialFileFactory(tmpDirectory, ArtemisConstants.DEFAULT_JOURNAL_BUFFER_SIZE_AIO, ArtemisConstants.DEFAULT_JOURNAL_BUFFER_TIMEOUT_AIO, 500, false, null).setDatasync(dataSync);
//disable it when using directly the same buffer: ((AIOSequentialFileFactory)factory).disableBufferReuse();
if (!LibaioContext.isLoaded()) {
throw new IllegalStateException("lib AIO not loaded!");
}
break;
default:
throw new AssertionError("unsupported case");
}
int numFiles = (int) (totalMessages * factory.calculateBlockSize(msgSize)) / fileSize;
if (numFiles < 2) {
numFiles = 2;
}
ExecutorService service = null;
final Journal journal;
if (useDefaultIoExecutor) {
journal = new JournalImpl(fileSize, numFiles, numFiles, Integer.MAX_VALUE, 100, factory, "activemq-data", "amq", factory.getMaxIO());
journal.start();
} else {
final ArrayList<MpscArrayQueue<Runnable>> tasks = new ArrayList<>();
service = Executors.newSingleThreadExecutor();
journal = new JournalImpl(() -> new Executor() {
private final MpscArrayQueue<Runnable> taskQueue = new MpscArrayQueue<>(1024);
{
tasks.add(taskQueue);
}
@Override
public void execute(Runnable command) {
while (!taskQueue.offer(command)) {
LockSupport.parkNanos(1L);
}
}
}, fileSize, numFiles, numFiles, Integer.MAX_VALUE, 100, factory, "activemq-data", "amq", factory.getMaxIO(), 0);
journal.start();
service.execute(() -> {
final int size = tasks.size();
final int capacity = 1024;
while (!Thread.currentThread().isInterrupted()) {
for (int i = 0; i < size; i++) {
final MpscArrayQueue<Runnable> runnables = tasks.get(i);
for (int j = 0; j < capacity; j++) {
final Runnable task = runnables.poll();
if (task == null) {
break;
}
try {
task.run();
} catch (Throwable t) {
System.err.println(t);
}
}
}
}
});
}
try {
journal.load(new ArrayList<RecordInfo>(), null, null);
} catch (Exception e) {
throw new RuntimeException(e);
}
try {
final EncodingSupport encodingSupport = new EncodingSupport() {
@Override
public int getEncodeSize() {
return msgSize;
}
@Override
public void encode(ActiveMQBuffer buffer) {
final int writerIndex = buffer.writerIndex();
buffer.setBytes(writerIndex, msgContent);
buffer.writerIndex(writerIndex + msgSize);
}
@Override
public void decode(ActiveMQBuffer buffer) {
}
};
long id = 1;
{
final long elapsed = writeMeasurements(id, journal, encodingSupport, warmup);
id += warmup;
System.out.println("warmup:" + (measurements * 1000_000_000L) / elapsed + " ops/sec");
}
for (int t = 0; t < tests; t++) {
final long elapsed = writeMeasurements(id, journal, encodingSupport, measurements);
System.out.println((measurements * 1000_000_000L) / elapsed + " ops/sec");
id += warmup;
}
} finally {
journal.stop();
if (service != null) {
service.shutdown();
}
final File[] fileToDeletes = tmpDirectory.listFiles();
System.out.println("Files to deletes" + Arrays.toString(fileToDeletes));
Stream.of(fileToDeletes).forEach(File::delete);
}
}
private static long writeMeasurements(long id,
Journal journal,
EncodingSupport encodingSupport,
int measurements) throws Exception {
System.gc();
TimeUnit.SECONDS.sleep(2);
final long start = System.nanoTime();
for (int i = 0; i < measurements; i++) {
write(id, journal, encodingSupport);
id++;
}
final long elapsed = System.nanoTime() - start;
return elapsed;
}
private static void write(long id, Journal journal, EncodingSupport encodingSupport) throws Exception {
journal.appendAddRecord(id, (byte) 1, encodingSupport, false);
final SimpleWaitIOCallback ioCallback = new SimpleWaitIOCallback();
journal.appendUpdateRecord(id, (byte) 1, encodingSupport, true, ioCallback);
ioCallback.waitCompletion();
}
private enum Type {
Mapped, Nio, Aio
}
}

203
artemis-journal/src/test/java/org/apache/activemq/artemis/core/io/SequentialFileTptBenchmark.java Normal file
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@ -0,0 +1,203 @@
/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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 org.apache.activemq.artemis.core.io;
import java.io.File;
import java.util.Arrays;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.concurrent.locks.LockSupport;
import org.apache.activemq.artemis.ArtemisConstants;
import org.apache.activemq.artemis.api.core.ActiveMQBuffer;
import org.apache.activemq.artemis.api.core.ActiveMQException;
import org.apache.activemq.artemis.api.core.ActiveMQExceptionType;
import org.apache.activemq.artemis.core.io.aio.AIOSequentialFileFactory;
import org.apache.activemq.artemis.core.io.mapped.MappedSequentialFileFactory;
import org.apache.activemq.artemis.core.io.nio.NIOSequentialFileFactory;
import org.apache.activemq.artemis.core.journal.EncodingSupport;
import org.apache.activemq.artemis.jlibaio.LibaioContext;
/**
* To benchmark Type.Aio you need to define -Djava.library.path=${project-root}/native/src/.libs when calling the JVM
*/
public class SequentialFileTptBenchmark {
private static final FastWaitIOCallback CALLBACK = new FastWaitIOCallback();
public static void main(String[] args) throws Exception {
final boolean dataSync = true;
final boolean writeSync = true;
final Type type = Type.Mapped;
final int tests = 10;
final int warmup = 20_000;
final int measurements = 20_000;
final int msgSize = 100;
final byte[] msgContent = new byte[msgSize];
Arrays.fill(msgContent, (byte) 1);
final File tmpDirectory = new File("./");
//using the default configuration when the broker starts!
final SequentialFileFactory factory;
switch (type) {
case Mapped:
final MappedSequentialFileFactory mappedFactory = new MappedSequentialFileFactory(tmpDirectory, null, true);
final int alignedMessageSize = mappedFactory.calculateBlockSize(msgSize);
final int totalFileSize = Math.max(alignedMessageSize * measurements, alignedMessageSize * warmup);
factory = mappedFactory.chunkBytes(totalFileSize).overlapBytes(0).setDatasync(dataSync);
break;
case Nio:
factory = new NIOSequentialFileFactory(tmpDirectory, true, ArtemisConstants.DEFAULT_JOURNAL_BUFFER_SIZE_NIO, ArtemisConstants.DEFAULT_JOURNAL_BUFFER_TIMEOUT_NIO, 1, false, null).setDatasync(dataSync);
break;
case Aio:
factory = new AIOSequentialFileFactory(tmpDirectory, ArtemisConstants.DEFAULT_JOURNAL_BUFFER_SIZE_AIO, ArtemisConstants.DEFAULT_JOURNAL_BUFFER_TIMEOUT_AIO, 500, false, null).setDatasync(dataSync);
//disable it when using directly the same buffer: ((AIOSequentialFileFactory)factory).disableBufferReuse();
if (!LibaioContext.isLoaded()) {
throw new IllegalStateException("lib AIO not loaded!");
}
break;
default:
throw new AssertionError("unsupported case");
}
factory.start();
try {
final EncodingSupport encodingSupport = new EncodingSupport() {
@Override
public int getEncodeSize() {
return msgSize;
}
@Override
public void encode(ActiveMQBuffer buffer) {
final int writerIndex = buffer.writerIndex();
buffer.setBytes(writerIndex, msgContent);
buffer.writerIndex(writerIndex + msgSize);
}
@Override
public void decode(ActiveMQBuffer buffer) {
}
};
final int alignedMessageSize = factory.calculateBlockSize(msgSize);
final long totalFileSize = Math.max(alignedMessageSize * measurements, alignedMessageSize * warmup);
if (totalFileSize > Integer.MAX_VALUE)
throw new IllegalArgumentException("reduce measurements/warmup");
final int fileSize = (int) totalFileSize;
final SequentialFile sequentialFile = factory.createSequentialFile("seq.dat");
sequentialFile.getJavaFile().delete();
sequentialFile.getJavaFile().deleteOnExit();
sequentialFile.open();
final long startZeros = System.nanoTime();
sequentialFile.fill(fileSize);
final long elapsedZeros = System.nanoTime() - startZeros;
System.out.println("Zeroed " + fileSize + " bytes in " + TimeUnit.NANOSECONDS.toMicros(elapsedZeros) + " us");
try {
{
final long elapsed = writeMeasurements(factory, sequentialFile, encodingSupport, warmup, writeSync);
System.out.println("warmup:" + (measurements * 1000_000_000L) / elapsed + " ops/sec");
}
for (int t = 0; t < tests; t++) {
final long elapsed = writeMeasurements(factory, sequentialFile, encodingSupport, measurements, writeSync);
System.out.println((measurements * 1000_000_000L) / elapsed + " ops/sec");
}
} finally {
sequentialFile.close();
}
} finally {
factory.stop();
}
}
private static long writeMeasurements(SequentialFileFactory sequentialFileFactory,
SequentialFile sequentialFile,
EncodingSupport encodingSupport,
int measurements,
boolean writeSync) throws Exception {
//System.gc();
TimeUnit.SECONDS.sleep(2);
sequentialFileFactory.activateBuffer(sequentialFile);
sequentialFile.position(0);
final long start = System.nanoTime();
for (int i = 0; i < measurements; i++) {
write(sequentialFile, encodingSupport, writeSync);
}
sequentialFileFactory.deactivateBuffer();
final long elapsed = System.nanoTime() - start;
return elapsed;
}
private static void write(SequentialFile sequentialFile,
EncodingSupport encodingSupport,
boolean sync) throws Exception {
//this pattern is necessary to ensure that NIO's TimedBuffer fill flush the buffer and know the real size of it
if (sequentialFile.fits(encodingSupport.getEncodeSize())) {
final FastWaitIOCallback ioCallback = CALLBACK.reset();
sequentialFile.write(encodingSupport, sync, ioCallback);
ioCallback.waitCompletion();
} else {
throw new IllegalStateException("can't happen!");
}
}
private enum Type {
Mapped, Nio, Aio
}
private static final class FastWaitIOCallback implements IOCallback {
private final AtomicBoolean done = new AtomicBoolean(false);
private int errorCode = 0;
private String errorMessage = null;
public FastWaitIOCallback reset() {
errorCode = 0;
errorMessage = null;
done.lazySet(false);
return this;
}
@Override
public void done() {
errorCode = 0;
errorMessage = null;
done.lazySet(true);
}
@Override
public void onError(int errorCode, String errorMessage) {
this.errorCode = errorCode;
this.errorMessage = errorMessage;
done.lazySet(true);
}
public void waitCompletion() throws InterruptedException, ActiveMQException {
final Thread currentThread = Thread.currentThread();
while (!done.get()) {
LockSupport.parkNanos(1L);
if (currentThread.isInterrupted())
throw new InterruptedException();
}
if (errorMessage != null) {
throw ActiveMQExceptionType.createException(errorCode, errorMessage);
}
}
}
}

6
artemis-server/src/main/java/org/apache/activemq/artemis/core/persistence/impl/journal/JournalStorageManager.java
View File

@ -44,6 +44,7 @@ import org.apache.activemq.artemis.core.io.IOCriticalErrorListener;
import org.apache.activemq.artemis.core.io.SequentialFile;
import org.apache.activemq.artemis.core.io.SequentialFileFactory;
import org.apache.activemq.artemis.core.io.aio.AIOSequentialFileFactory;
import org.apache.activemq.artemis.core.io.mapped.MappedSequentialFileFactory;
import org.apache.activemq.artemis.core.io.nio.NIOSequentialFileFactory;
import org.apache.activemq.artemis.core.journal.Journal;
import org.apache.activemq.artemis.core.journal.impl.JournalFile;
@ -136,6 +137,11 @@ public class JournalStorageManager extends AbstractJournalStorageManager {
ActiveMQServerLogger.LOGGER.journalUseAIO();
journalFF = new AIOSequentialFileFactory(config.getJournalLocation(), config.getJournalBufferSize_AIO(), config.getJournalBufferTimeout_AIO(), config.getJournalMaxIO_AIO(), config.isLogJournalWriteRate(), criticalErrorListener);
break;
case MAPPED:
ActiveMQServerLogger.LOGGER.journalUseMAPPED();
//the mapped version do not need buffering by default
journalFF = new MappedSequentialFileFactory(config.getJournalLocation(), criticalErrorListener, true).chunkBytes(config.getJournalFileSize()).overlapBytes(0);
break;
default:
throw ActiveMQMessageBundle.BUNDLE.invalidJournalType2(config.getJournalType());
}

6
artemis-server/src/main/java/org/apache/activemq/artemis/core/server/ActiveMQServerLogger.java
View File

@ -1558,8 +1558,12 @@ public interface ActiveMQServerLogger extends BasicLogger {
@Message(id = 224072, value = "Message Counter Sample Period too short: {0}", format = Message.Format.MESSAGE_FORMAT)
void invalidMessageCounterPeriod(long value);
@LogMessage(level = Logger.Level.INFO)
@Message(id = 224073, value = "Using MAPPED Journal", format = Message.Format.MESSAGE_FORMAT)
void journalUseMAPPED();
@LogMessage(level = Logger.Level.ERROR)
@Message(id = 224073, value = "Failed to purge queue {0} on no consumers", format = Message.Format.MESSAGE_FORMAT)
@Message(id = 224074, value = "Failed to purge queue {0} on no consumers", format = Message.Format.MESSAGE_FORMAT)
void failedToPurgeQueue(@Cause Exception e, SimpleString bindingName);
}

1
artemis-server/src/main/java/org/apache/activemq/artemis/core/server/JournalType.java
View File

@ -40,6 +40,7 @@ public enum JournalType {
switch (type) {
case "NIO": return NIO;
case "ASYNCIO" : return ASYNCIO;
case "MAPPED" : return MAPPED;
default: throw new IllegalStateException("Invalid JournalType:" + type + " valid Types: " + validValues);
}
}

1
artemis-server/src/main/resources/schema/artemis-configuration.xsd
View File

@ -584,6 +584,7 @@
<xsd:restriction base="xsd:string">
<xsd:enumeration value="ASYNCIO"/>
<xsd:enumeration value="NIO"/>
<xsd:enumeration value="MAPPED"/>
</xsd:restriction>
</xsd:simpleType>
</xsd:element>

1
artemis-tools/src/test/resources/artemis-configuration.xsd
View File

@ -576,6 +576,7 @@
<xsd:restriction base="xsd:string">
<xsd:enumeration value="ASYNCIO"/>
<xsd:enumeration value="NIO"/>
<xsd:enumeration value="MAPPED"/>
</xsd:restriction>
</xsd:simpleType>
</xsd:element>

3
tests/integration-tests/src/test/java/org/apache/activemq/artemis/tests/integration/journal/AIOJournalImplTest.java
View File

@ -59,7 +59,8 @@ public class AIOJournalImplTest extends JournalImplTestUnit {
file.mkdir();
return new AIOSequentialFileFactory(getTestDirfile(), ArtemisConstants.DEFAULT_JOURNAL_BUFFER_SIZE_AIO, 1000000, 10, false);
// forcing the alignment to be 512, as this test was hard coded around this size.
return new AIOSequentialFileFactory(getTestDirfile(), ArtemisConstants.DEFAULT_JOURNAL_BUFFER_SIZE_AIO, 1000000, 10, false).setAlignment(512);
}
@Override

30
tests/integration-tests/src/test/java/org/apache/activemq/artemis/tests/integration/journal/MappedImportExportTest.java Normal file
View File

@ -0,0 +1,30 @@
/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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 org.apache.activemq.artemis.tests.integration.journal;
import org.apache.activemq.artemis.core.io.SequentialFileFactory;
import org.apache.activemq.artemis.core.io.mapped.MappedSequentialFileFactory;
public class MappedImportExportTest extends NIOImportExportTest {
@Override
protected SequentialFileFactory getFileFactory() throws Exception {
return new MappedSequentialFileFactory(getTestDirfile());
}
}

37
tests/integration-tests/src/test/java/org/apache/activemq/artemis/tests/integration/journal/MappedJournalCompactTest.java Normal file
View File

@ -0,0 +1,37 @@
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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 org.apache.activemq.artemis.tests.integration.journal;
import java.io.File;
import org.apache.activemq.artemis.core.io.SequentialFileFactory;
import org.apache.activemq.artemis.core.io.mapped.MappedSequentialFileFactory;
import org.apache.activemq.artemis.tests.util.ActiveMQTestBase;
public class MappedJournalCompactTest extends NIOJournalCompactTest {
@Override
protected SequentialFileFactory getFileFactory() throws Exception {
File file = new File(getTestDir());
ActiveMQTestBase.deleteDirectory(file);
file.mkdir();
return new MappedSequentialFileFactory(getTestDirfile());
}
}

43
tests/integration-tests/src/test/java/org/apache/activemq/artemis/tests/integration/journal/MappedJournalImplTest.java Normal file
View File

@ -0,0 +1,43 @@
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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 org.apache.activemq.artemis.tests.integration.journal;
import java.io.File;
import org.apache.activemq.artemis.core.io.SequentialFileFactory;
import org.apache.activemq.artemis.core.io.mapped.MappedSequentialFileFactory;
import org.apache.activemq.artemis.tests.unit.core.journal.impl.JournalImplTestUnit;
public class MappedJournalImplTest extends JournalImplTestUnit {
@Override
protected SequentialFileFactory getFileFactory() throws Exception {
File file = new File(getTestDir());
deleteDirectory(file);
file.mkdir();
return new MappedSequentialFileFactory(getTestDirfile());
}
@Override
protected int getAlignment() {
return fileFactory.getAlignment();
}
}

184
tests/integration-tests/src/test/java/org/apache/activemq/artemis/tests/integration/journal/MappedSequentialFileFactoryTest.java Normal file
View File

@ -0,0 +1,184 @@
/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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 org.apache.activemq.artemis.tests.integration.journal;
import java.io.File;
import java.nio.ByteBuffer;
import java.util.concurrent.atomic.AtomicInteger;
import org.apache.activemq.artemis.api.core.ActiveMQBuffer;
import org.apache.activemq.artemis.core.io.SequentialFile;
import org.apache.activemq.artemis.core.io.SequentialFileFactory;
import org.apache.activemq.artemis.core.io.mapped.MappedSequentialFileFactory;
import org.apache.activemq.artemis.core.journal.EncodingSupport;
import org.apache.activemq.artemis.tests.unit.core.journal.impl.SequentialFileFactoryTestBase;
import org.junit.Assert;
import org.junit.Test;
public class MappedSequentialFileFactoryTest extends SequentialFileFactoryTestBase {
@Override
protected SequentialFileFactory createFactory(String folder) {
return new MappedSequentialFileFactory(new File(folder));
}
@Test
public void testInterrupts() throws Throwable {
final EncodingSupport fakeEncoding = new EncodingSupport() {
@Override
public int getEncodeSize() {
return 10;
}
@Override
public void encode(ActiveMQBuffer buffer) {
buffer.writeBytes(new byte[10]);
}
@Override
public void decode(ActiveMQBuffer buffer) {
}
};
final AtomicInteger calls = new AtomicInteger(0);
final MappedSequentialFileFactory factory = new MappedSequentialFileFactory(new File(getTestDir()), (code, message, file) -> {
new Exception("shutdown").printStackTrace();
calls.incrementAndGet();
});
Thread threadOpen = new Thread() {
@Override
public void run() {
try {
Thread.currentThread().interrupt();
SequentialFile file = factory.createSequentialFile("file.txt");
file.open();
} catch (Exception e) {
e.printStackTrace();
}
}
};
threadOpen.start();
threadOpen.join();
Thread threadClose = new Thread() {
@Override
public void run() {
try {
SequentialFile file = factory.createSequentialFile("file.txt");
file.open();
file.write(fakeEncoding, true);
Thread.currentThread().interrupt();
file.close();
} catch (Exception e) {
e.printStackTrace();
}
}
};
threadClose.start();
threadClose.join();
Thread threadWrite = new Thread() {
@Override
public void run() {
try {
SequentialFile file = factory.createSequentialFile("file.txt");
file.open();
Thread.currentThread().interrupt();
file.write(fakeEncoding, true);
file.close();
} catch (Exception e) {
e.printStackTrace();
}
}
};
threadWrite.start();
threadWrite.join();
Thread threadFill = new Thread() {
@Override
public void run() {
try {
SequentialFile file = factory.createSequentialFile("file.txt");
file.open();
Thread.currentThread().interrupt();
file.fill(1024);
file.close();
} catch (Exception e) {
e.printStackTrace();
}
}
};
threadFill.start();
threadFill.join();
Thread threadWriteDirect = new Thread() {
@Override
public void run() {
try {
SequentialFile file = factory.createSequentialFile("file.txt");
file.open();
ByteBuffer buffer = ByteBuffer.allocate(10);
buffer.put(new byte[10]);
Thread.currentThread().interrupt();
file.writeDirect(buffer, true);
file.close();
} catch (Exception e) {
e.printStackTrace();
}
}
};
threadWriteDirect.start();
threadWriteDirect.join();
Thread threadRead = new Thread() {
@Override
public void run() {
try {
SequentialFile file = factory.createSequentialFile("file.txt");
file.open();
file.write(fakeEncoding, true);
file.position(0);
ByteBuffer readBytes = ByteBuffer.allocate(fakeEncoding.getEncodeSize());
Thread.currentThread().interrupt();
file.read(readBytes);
file.close();
} catch (Exception e) {
e.printStackTrace();
}
}
};
threadRead.start();
threadRead.join();
// An interrupt exception shouldn't issue a shutdown
Assert.assertEquals(0, calls.get());
}
}

37
tests/integration-tests/src/test/java/org/apache/activemq/artemis/tests/integration/journal/ValidateTransactionHealthTest.java
View File

@ -22,8 +22,11 @@ import java.util.List;
import java.util.concurrent.atomic.AtomicLong;
import org.apache.activemq.artemis.ArtemisConstants;
import org.apache.activemq.artemis.core.io.IOCriticalErrorListener;
import org.apache.activemq.artemis.core.io.SequentialFile;
import org.apache.activemq.artemis.core.io.SequentialFileFactory;
import org.apache.activemq.artemis.core.io.aio.AIOSequentialFileFactory;
import org.apache.activemq.artemis.core.io.mapped.MappedSequentialFileFactory;
import org.apache.activemq.artemis.core.io.nio.NIOSequentialFileFactory;
import org.apache.activemq.artemis.core.journal.LoaderCallback;
import org.apache.activemq.artemis.core.journal.PreparedTransactionInfo;
@ -102,6 +105,27 @@ public class ValidateTransactionHealthTest extends ActiveMQTestBase {
internalTest("nio2", getTestDir(), 10000, 0, true, true, 1);
}
@Test
public void testMMap() throws Exception {
internalTest("mmap", getTestDir(), 10000, 100, true, true, 1);
}
@Test
public void testMMAPHugeTransaction() throws Exception {
internalTest("mmap", getTestDir(), 10000, 10000, true, true, 1);
}
@Test
public void testMMAPOMultiThread() throws Exception {
internalTest("mmap", getTestDir(), 1000, 100, true, true, 10);
}
@Test
public void testMMAPNonTransactional() throws Exception {
internalTest("mmap", getTestDir(), 10000, 0, true, true, 1);
}
// Package protected ---------------------------------------------
private void internalTest(final String type,
@ -234,7 +258,7 @@ public class ValidateTransactionHealthTest extends ActiveMQTestBase {
if (args.length != 5) {
System.err.println("Use: java -cp <classpath> " + ValidateTransactionHealthTest.class.getCanonicalName() +
" aio|nio <journalDirectory> <NumberOfElements> <TransactionSize> <NumberOfThreads>");
" aio|nio|mmap <journalDirectory> <NumberOfElements> <TransactionSize> <NumberOfThreads>");
System.exit(-1);
}
System.out.println("Running");
@ -320,15 +344,22 @@ public class ValidateTransactionHealthTest extends ActiveMQTestBase {
}
public static JournalImpl createJournal(final String journalType, final String journalDir) {
JournalImpl journal = new JournalImpl(10485760, 2, 2, 0, 0, ValidateTransactionHealthTest.getFactory(journalType, journalDir), "journaltst", "tst", 500);
JournalImpl journal = new JournalImpl(10485760, 2, 2, 0, 0, ValidateTransactionHealthTest.getFactory(journalType, journalDir, 10485760), "journaltst", "tst", 500);
return journal;
}
public static SequentialFileFactory getFactory(final String factoryType, final String directory) {
public static SequentialFileFactory getFactory(final String factoryType, final String directory, int fileSize) {
if (factoryType.equals("aio")) {
return new AIOSequentialFileFactory(new File(directory), ArtemisConstants.DEFAULT_JOURNAL_BUFFER_SIZE_AIO, ArtemisConstants.DEFAULT_JOURNAL_BUFFER_TIMEOUT_AIO, 10, false);
} else if (factoryType.equals("nio2")) {
return new NIOSequentialFileFactory(new File(directory), true, 1);
} else if (factoryType.equals("mmap")) {
return new MappedSequentialFileFactory(new File(directory), new IOCriticalErrorListener() {
@Override
public void onIOException(Throwable code, String message, SequentialFile file) {
code.printStackTrace();
}
}, true).chunkBytes(fileSize).overlapBytes(0);
} else {
return new NIOSequentialFileFactory(new File(directory), false, 1);
}