org.apache.hadoop.hbase.regionserver.wal

类 AsyncProtobufLogWriter

java.lang.Object

org.apache.hadoop.hbase.regionserver.wal.AbstractProtobufLogWriter

org.apache.hadoop.hbase.regionserver.wal.AsyncProtobufLogWriter

所有已实现的接口:

Closeable, AutoCloseable, AsyncFSWALProvider.AsyncWriter, WALProvider.AsyncWriter, WALProvider.WriterBase

直接已知子类:

SecureAsyncProtobufLogWriter

@InterfaceAudience.Private
public class AsyncProtobufLogWriter
extends AbstractProtobufLogWriter
implements AsyncFSWALProvider.AsyncWriter

AsyncWriter for protobuf-based WAL.

字段概要

从类继承的字段 org.apache.hadoop.hbase.regionserver.wal.AbstractProtobufLogWriter

cellEncoder, compressionContext, compressor, conf, length, trailer, trailerWarnSize, trailerWritten

构造器概要

构造器

构造器和说明
AsyncProtobufLogWriter(org.apache.hbase.thirdparty.io.netty.channel.EventLoopGroup eventLoopGroup, Class<? extends org.apache.hbase.thirdparty.io.netty.channel.Channel> channelClass)

方法概要

限定符和类型	方法和说明
void	append(WAL.Entry entry)
void	close()
AsyncFSOutput	getOutput()
protected OutputStream	getOutputStreamForCellEncoder()
protected String	getWriterClassName()
protected void	initOutput(org.apache.hadoop.fs.FileSystem fs, org.apache.hadoop.fs.Path path, boolean overwritable, int bufferSize, short replication, long blockSize)
CompletableFuture<Long>	sync()
protected long	writeMagicAndWALHeader(byte[] magic, org.apache.hadoop.hbase.shaded.protobuf.generated.WALProtos.WALHeader header) return the file length after written.
protected long	writeWALTrailerAndMagic(org.apache.hadoop.hbase.shaded.protobuf.generated.WALProtos.WALTrailer trailer, byte[] magic)

从类继承的方法 org.apache.hadoop.hbase.regionserver.wal.AbstractProtobufLogWriter

buildSecureWALHeader, buildWALHeader, getLength, init, initAfterHeader, secureInitAfterHeader, setEncryptor, writeWALTrailer

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

从接口继承的方法 org.apache.hadoop.hbase.wal.AsyncFSWALProvider.AsyncWriter

init

从接口继承的方法 org.apache.hadoop.hbase.wal.WALProvider.WriterBase

getLength

构造器详细资料

AsyncProtobufLogWriter

public AsyncProtobufLogWriter(org.apache.hbase.thirdparty.io.netty.channel.EventLoopGroup eventLoopGroup,
                              Class<? extends org.apache.hbase.thirdparty.io.netty.channel.Channel> channelClass)

方法详细资料

getWriterClassName

protected String getWriterClassName()

覆盖:

getWriterClassName 在类中 AbstractProtobufLogWriter

append

public void append(WAL.Entry entry)

指定者:

append 在接口中 WALProvider.AsyncWriter

sync

public CompletableFuture<Long> sync()

指定者:

sync 在接口中 WALProvider.AsyncWriter

close

public void close()
           throws IOException

指定者:

close 在接口中 Closeable

指定者:

close 在接口中 AutoCloseable

抛出:

IOException

getOutput

public AsyncFSOutput getOutput()

initOutput

protected void initOutput(org.apache.hadoop.fs.FileSystem fs,
                          org.apache.hadoop.fs.Path path,
                          boolean overwritable,
                          int bufferSize,
                          short replication,
                          long blockSize)
                   throws IOException,
                          CommonFSUtils.StreamLacksCapabilityException

指定者:

initOutput 在类中 AbstractProtobufLogWriter

抛出:

IOException

CommonFSUtils.StreamLacksCapabilityException

writeMagicAndWALHeader

protected long writeMagicAndWALHeader(byte[] magic,
                                      org.apache.hadoop.hbase.shaded.protobuf.generated.WALProtos.WALHeader header)
                               throws IOException

从类复制的说明: AbstractProtobufLogWriter

return the file length after written.

指定者:

writeMagicAndWALHeader 在类中 AbstractProtobufLogWriter

抛出:

IOException

writeWALTrailerAndMagic

protected long writeWALTrailerAndMagic(org.apache.hadoop.hbase.shaded.protobuf.generated.WALProtos.WALTrailer trailer,
                                       byte[] magic)
                                throws IOException

指定者:

writeWALTrailerAndMagic 在类中 AbstractProtobufLogWriter

抛出:

IOException

getOutputStreamForCellEncoder

protected OutputStream getOutputStreamForCellEncoder()

指定者:

getOutputStreamForCellEncoder 在类中 AbstractProtobufLogWriter