org.apache.hadoop.hbase.wal

类 BoundedLogWriterCreationOutputSink

java.lang.Object

org.apache.hadoop.hbase.wal.OutputSink

org.apache.hadoop.hbase.wal.LogRecoveredEditsOutputSink

org.apache.hadoop.hbase.wal.BoundedLogWriterCreationOutputSink

@InterfaceAudience.Private
public class BoundedLogWriterCreationOutputSink
extends LogRecoveredEditsOutputSink

Class that manages the output streams from the log splitting process. Bounded means the output streams will be no more than the size of threadpool

嵌套类概要

从类继承的嵌套类/接口 org.apache.hadoop.hbase.wal.OutputSink

OutputSink.WriterThread

字段概要

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

blacklistedRegions, closeAndCleanCompleted, controller, entryBuffers, numThreads, regionMaximumEditLogSeqNum, reporter, skippedEdits, splits, writers, writersClosed, writerThreads

构造器概要

构造器

构造器和说明
BoundedLogWriterCreationOutputSink(WALSplitter walSplitter, WALSplitter.PipelineController controller, EntryBuffers entryBuffers, int numWriters)

方法概要

限定符和类型	方法和说明
void	append(WALSplitter.RegionEntryBuffer buffer) Append the buffer to a new recovered edits file, then close it after all done
List<org.apache.hadoop.fs.Path>	finishWritingAndClose()
int	getNumberOfRecoveredRegions()
Map<byte[],Long>	getOutputCounts() since the splitting process may create multiple output files, we need a map regionRecoverStatMap to track the output count of each region.

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

keepRegionEvent

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

finishWriting, flush, restartWriterThreadsIfNeeded, startWriterThreads

从类继承的方法 java.lang.Object

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

构造器详细资料

BoundedLogWriterCreationOutputSink

public BoundedLogWriterCreationOutputSink(WALSplitter walSplitter,
                                          WALSplitter.PipelineController controller,
                                          EntryBuffers entryBuffers,
                                          int numWriters)

方法详细资料

finishWritingAndClose

public List<org.apache.hadoop.fs.Path> finishWritingAndClose()
                                                      throws IOException

覆盖:

finishWritingAndClose 在类中 LogRecoveredEditsOutputSink

返回:

null if failed to report progress

抛出:

IOException

getOutputCounts

public Map<byte[],Long> getOutputCounts()

since the splitting process may create multiple output files, we need a map regionRecoverStatMap to track the output count of each region.

覆盖:

getOutputCounts 在类中 LogRecoveredEditsOutputSink

返回:

a map from encoded region ID to the number of edits written out for that region.

getNumberOfRecoveredRegions

public int getNumberOfRecoveredRegions()

覆盖:

getNumberOfRecoveredRegions 在类中 LogRecoveredEditsOutputSink

返回:

the number of recovered regions

append

public void append(WALSplitter.RegionEntryBuffer buffer)
            throws IOException

Append the buffer to a new recovered edits file, then close it after all done

覆盖:

append 在类中 LogRecoveredEditsOutputSink

参数:

buffer - contain all entries of a certain region

抛出:

IOException - when closeWriter failed