org.apache.hadoop.hbase.regionserver

Class HeapMemoryManager.HeapMemoryTunerChore

java.lang.Object

org.apache.hadoop.hbase.ScheduledChore

org.apache.hadoop.hbase.regionserver.HeapMemoryManager.HeapMemoryTunerChore

All Implemented Interfaces:

Runnable, FlushRequestListener

Enclosing class:

HeapMemoryManager

private class HeapMemoryManager.HeapMemoryTunerChore
extends ScheduledChore
implements FlushRequestListener

Field Summary

Fields

Modifier and Type	Field and Description
private boolean	alarming
private AtomicLong	blockedFlushCount
private long	cacheMissCount
private long	evictCount
private HeapMemoryTuner	heapMemTuner
private HeapMemoryManager.TunerContext	tunerContext
private AtomicLong	unblockedFlushCount

Constructor Summary

Constructors

Constructor and Description
HeapMemoryTunerChore()

Method Summary

Modifier and Type	Method and Description
protected void	chore() The task to execute on each scheduled execution of the Chore
void	flushRequested(FlushType type, Region region) Callback which will get called when a flush request is made for a region.
private void	tune()

Methods inherited from class org.apache.hadoop.hbase.ScheduledChore

cancel, cancel, choreForTesting, cleanup, getInitialDelay, getName, getPeriod, getStopper, getTimeUnit, initialChore, isInitialChoreComplete, isScheduled, run, shutdown, shutdown, toString, triggerNow

Methods inherited from class java.lang.Object

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

Field Detail

heapMemTuner

private HeapMemoryTuner heapMemTuner

blockedFlushCount

private AtomicLong blockedFlushCount

unblockedFlushCount

private AtomicLong unblockedFlushCount

evictCount

private long evictCount

cacheMissCount

private long cacheMissCount

tunerContext

private HeapMemoryManager.TunerContext tunerContext

alarming

private boolean alarming

Constructor Detail

HeapMemoryTunerChore

public HeapMemoryTunerChore()

Method Detail

chore

protected void chore()

Description copied from class: ScheduledChore

The task to execute on each scheduled execution of the Chore

Specified by:

chore in class ScheduledChore

tune

private void tune()

flushRequested

public void flushRequested(FlushType type,
                           Region region)

Description copied from interface: FlushRequestListener

Callback which will get called when a flush request is made for a region.

Specified by:

flushRequested in interface FlushRequestListener

Parameters:

type - The type of flush. (ie. Whether a normal flush or flush because of global heap preassure)

region - The region for which flush is requested