org.apache.hadoop.hbase.regionserver.compactions

Interface CompactionThroughputController

All Superinterfaces:

Stoppable

All Known Implementing Classes:

NoLimitCompactionThroughputController, PressureAwareCompactionThroughputController

@InterfaceAudience.LimitedPrivate(value="Configuration")
public interface CompactionThroughputController
extends Stoppable

A utility that constrains the total throughput of one or more simultaneous flows (compactions) by sleeping when necessary.

Method Summary

Methods

Modifier and Type	Method and Description
long	control(String compactionName, long size) Control the compaction throughput.
void	finish(String compactionName) Finish a compaction.
void	setup(RegionServerServices server) Setup controller for the given region server.
void	start(String compactionName) Start a compaction.

Methods inherited from interface org.apache.hadoop.hbase.Stoppable

isStopped, stop

Method Detail

setup

void setup(RegionServerServices server)

Setup controller for the given region server.

start

void start(String compactionName)

Start a compaction.

control

long control(String compactionName,
           long size)
             throws InterruptedException

Control the compaction throughput. Will sleep if too fast.

Returns:

the actual sleep time.

Throws:

InterruptedException

finish

void finish(String compactionName)

Finish a compaction. Should call this method in a finally block.