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Merge pull request #24 from chrislusf/master

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hilimd 2020-10-10 16:20:26 +08:00 committed by GitHub
parent 411e49f964 912ef2bc53
commit b9a446839a
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7 changed files with 54 additions and 30 deletions
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54
other/java/client/src/main/java/seaweedfs/client/SeaweedRead.java
View file

@ -40,7 +40,7 @@ public class SeaweedRead {
//TODO parallel this
long readCount = 0;
int startOffset = bufferOffset;
long startOffset = position;
for (ChunkView chunkView : chunkViews) {
if (startOffset < chunkView.logicOffset) {
@ -57,7 +57,7 @@ public class SeaweedRead {
return 0;
}
int len = readChunkView(position, buffer, startOffset, chunkView, locations);
int len = readChunkView(startOffset, buffer, bufferOffset + readCount, chunkView, locations);
LOG.debug("read [{},{}) {} size {}", startOffset, startOffset + len, chunkView.fileId, chunkView.size);
@ -66,7 +66,7 @@ public class SeaweedRead {
}
long limit = Math.min(bufferLength, fileSize);
long limit = Math.min(bufferOffset + bufferLength, fileSize);
if (startOffset < limit) {
long gap = limit - startOffset;
@ -78,7 +78,7 @@ public class SeaweedRead {
return readCount;
}
private static int readChunkView(long position, byte[] buffer, int startOffset, ChunkView chunkView, FilerProto.Locations locations) throws IOException {
private static int readChunkView(long startOffset, byte[] buffer, long bufOffset, ChunkView chunkView, FilerProto.Locations locations) throws IOException {
byte[] chunkData = chunkCache.getChunk(chunkView.fileId);
@ -88,17 +88,51 @@ public class SeaweedRead {
}
int len = (int) chunkView.size;
LOG.debug("readChunkView fid:{} chunkData.length:{} chunkView.offset:{} buffer.length:{} startOffset:{} len:{}",
chunkView.fileId, chunkData.length, chunkView.offset, buffer.length, startOffset, len);
System.arraycopy(chunkData, startOffset - (int) (chunkView.logicOffset - chunkView.offset), buffer, startOffset, len);
LOG.debug("readChunkView fid:{} chunkData.length:{} chunkView.offset:{} chunkView[{};{}) buf[{},{})/{} startOffset:{}",
chunkView.fileId, chunkData.length, chunkView.offset, chunkView.logicOffset, chunkView.logicOffset + chunkView.size, bufOffset, bufOffset + len, buffer.length, startOffset);
System.arraycopy(chunkData, (int) (startOffset - chunkView.logicOffset + chunkView.offset), buffer, (int) bufOffset, len);
return len;
}
public static byte[] doFetchFullChunkData(ChunkView chunkView, FilerProto.Locations locations) throws IOException {
HttpGet request = new HttpGet(
String.format("http://%s/%s", locations.getLocations(0).getUrl(), chunkView.fileId));
byte[] data = null;
IOException lastException = null;
for (long waitTime = 1000L; waitTime < 10 * 1000; waitTime += waitTime / 2) {
for (FilerProto.Location location : locations.getLocationsList()) {
String url = String.format("http://%s/%s", location.getUrl(), chunkView.fileId);
try {
data = doFetchOneFullChunkData(chunkView, url);
lastException = null;
break;
} catch (IOException ioe) {
LOG.debug("doFetchFullChunkData {} :{}", url, ioe);
lastException = ioe;
}
}
if (data != null) {
break;
}
try {
Thread.sleep(waitTime);
} catch (InterruptedException e) {
}
}
if (lastException != null) {
throw lastException;
}
LOG.debug("doFetchFullChunkData fid:{} chunkData.length:{}", chunkView.fileId, data.length);
return data;
}
public static byte[] doFetchOneFullChunkData(ChunkView chunkView, String url) throws IOException {
HttpGet request = new HttpGet(url);
request.setHeader(HttpHeaders.ACCEPT_ENCODING, "gzip");
@ -142,7 +176,7 @@ public class SeaweedRead {
data = Gzip.decompress(data);
}
LOG.debug("doFetchFullChunkData fid:{} chunkData.length:{}", chunkView.fileId, data.length);
LOG.debug("doFetchOneFullChunkData url:{} chunkData.length:{}", url, data.length);
return data;

2
other/java/hdfs2/src/main/java/seaweed/hdfs/SeaweedFileSystem.java
View file

@ -74,7 +74,7 @@ public class SeaweedFileSystem extends FileSystem {
try {
int seaweedBufferSize = this.getConf().getInt(FS_SEAWEED_BUFFER_SIZE, FS_SEAWEED_DEFAULT_BUFFER_SIZE);
FSInputStream inputStream = seaweedFileSystemStore.openFileForRead(path, statistics, seaweedBufferSize);
FSInputStream inputStream = seaweedFileSystemStore.openFileForRead(path, statistics);
return new FSDataInputStream(new BufferedFSInputStream(inputStream, 4 * seaweedBufferSize));
} catch (Exception ex) {
LOG.warn("open path: {} bufferSize:{}", path, bufferSize, ex);

8
other/java/hdfs2/src/main/java/seaweed/hdfs/SeaweedFileSystemStore.java
View file

@ -205,10 +205,9 @@ public class SeaweedFileSystemStore {
}
public FSInputStream openFileForRead(final Path path, FileSystem.Statistics statistics,
int bufferSize) throws IOException {
public FSInputStream openFileForRead(final Path path, FileSystem.Statistics statistics) throws IOException {
LOG.debug("openFileForRead path:{} bufferSize:{}", path, bufferSize);
LOG.debug("openFileForRead path:{}", path);
FilerProto.Entry entry = lookupEntry(path);
@ -219,8 +218,7 @@ public class SeaweedFileSystemStore {
return new SeaweedInputStream(filerGrpcClient,
statistics,
path.toUri().getPath(),
entry,
bufferSize);
entry);
}
public void setOwner(Path path, String owner, String group) {

5
other/java/hdfs2/src/main/java/seaweed/hdfs/SeaweedInputStream.java
View file

@ -25,7 +25,6 @@ public class SeaweedInputStream extends FSInputStream {
private final FilerProto.Entry entry;
private final List<SeaweedRead.VisibleInterval> visibleIntervalList;
private final long contentLength;
private final int bufferSize; // default buffer size
private long position = 0; // cursor of the file
@ -35,14 +34,12 @@ public class SeaweedInputStream extends FSInputStream {
final FilerGrpcClient filerGrpcClient,
final Statistics statistics,
final String path,
final FilerProto.Entry entry,
final int bufferSize) throws IOException {
final FilerProto.Entry entry) throws IOException {
this.filerGrpcClient = filerGrpcClient;
this.statistics = statistics;
this.path = path;
this.entry = entry;
this.contentLength = SeaweedRead.fileSize(entry);
this.bufferSize = bufferSize;
this.visibleIntervalList = SeaweedRead.nonOverlappingVisibleIntervals(filerGrpcClient, entry.getChunksList());

2
other/java/hdfs3/src/main/java/seaweed/hdfs/SeaweedFileSystem.java
View file

@ -74,7 +74,7 @@ public class SeaweedFileSystem extends FileSystem {
try {
int seaweedBufferSize = this.getConf().getInt(FS_SEAWEED_BUFFER_SIZE, FS_SEAWEED_DEFAULT_BUFFER_SIZE);
FSInputStream inputStream = seaweedFileSystemStore.openFileForRead(path, statistics, seaweedBufferSize);
FSInputStream inputStream = seaweedFileSystemStore.openFileForRead(path, statistics);
return new FSDataInputStream(new BufferedFSInputStream(inputStream, 4 * seaweedBufferSize));
} catch (Exception ex) {
LOG.warn("open path: {} bufferSize:{}", path, bufferSize, ex);

8
other/java/hdfs3/src/main/java/seaweed/hdfs/SeaweedFileSystemStore.java
View file

@ -205,10 +205,9 @@ public class SeaweedFileSystemStore {
}
public FSInputStream openFileForRead(final Path path, FileSystem.Statistics statistics,
int bufferSize) throws IOException {
public FSInputStream openFileForRead(final Path path, FileSystem.Statistics statistics) throws IOException {
LOG.debug("openFileForRead path:{} bufferSize:{}", path, bufferSize);
LOG.debug("openFileForRead path:{}", path);
FilerProto.Entry entry = lookupEntry(path);
@ -219,8 +218,7 @@ public class SeaweedFileSystemStore {
return new SeaweedInputStream(filerGrpcClient,
statistics,
path.toUri().getPath(),
entry,
bufferSize);
entry);
}
public void setOwner(Path path, String owner, String group) {

5
other/java/hdfs3/src/main/java/seaweed/hdfs/SeaweedInputStream.java
View file

@ -25,7 +25,6 @@ public class SeaweedInputStream extends FSInputStream {
private final FilerProto.Entry entry;
private final List<SeaweedRead.VisibleInterval> visibleIntervalList;
private final long contentLength;
private final int bufferSize; // default buffer size
private long position = 0; // cursor of the file
@ -35,14 +34,12 @@ public class SeaweedInputStream extends FSInputStream {
final FilerGrpcClient filerGrpcClient,
final Statistics statistics,
final String path,
final FilerProto.Entry entry,
final int bufferSize) throws IOException {
final FilerProto.Entry entry) throws IOException {
this.filerGrpcClient = filerGrpcClient;
this.statistics = statistics;
this.path = path;
this.entry = entry;
this.contentLength = SeaweedRead.fileSize(entry);
this.bufferSize = bufferSize;
this.visibleIntervalList = SeaweedRead.nonOverlappingVisibleIntervals(filerGrpcClient, entry.getChunksList());