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

方法概要

方法

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

WALSplitter.EntryBuffers

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

WALSplitter.EntryBuffers

public WALSplitter.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()