org.apache.hadoop.hbase.wal

类 WALSplitter.EntryBuffers

java.lang.Object

org.apache.hadoop.hbase.wal.WALSplitter.EntryBuffers

封闭类:

WALSplitter

public static class WALSplitter.EntryBuffers
extends Object

Class which accumulates edits and separates them into a buffer per region while simultaneously accounting RAM usage. Blocks if the RAM usage crosses a predefined threshold. Writer threads then pull region-specific buffers from this class.

构造器概要

构造器

构造器和说明
EntryBuffers(WALSplitter.PipelineController controller, long maxHeapUsage)
EntryBuffers(WALSplitter.PipelineController controller, long maxHeapUsage, boolean splitWriterCreationBounded)

方法概要

限定符和类型	方法和说明
void	appendEntry(WAL.Entry entry) Append a log entry into the corresponding region buffer.
void	waitUntilDrained()

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

EntryBuffers

public EntryBuffers(WALSplitter.PipelineController controller,
                    long maxHeapUsage)

EntryBuffers

public EntryBuffers(WALSplitter.PipelineController controller,
                    long maxHeapUsage,
                    boolean splitWriterCreationBounded)

方法详细资料

appendEntry

public void appendEntry(WAL.Entry entry)
                 throws InterruptedException,
                        IOException

Append a log entry into the corresponding region buffer. Blocks if the total heap usage has crossed the specified threshold.

抛出:

InterruptedException

IOException

waitUntilDrained

public void waitUntilDrained()