org.apache.hadoop.hbase

Class HealthCheckChore

java.lang.Object

org.apache.hadoop.hbase.ScheduledChore

org.apache.hadoop.hbase.HealthCheckChore

All Implemented Interfaces:

Runnable

@InterfaceAudience.Private
public class HealthCheckChore
extends ScheduledChore

The Class HealthCheckChore for running health checker regularly.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.hadoop.hbase.ScheduledChore

ScheduledChore.ChoreServicer

Field Summary

Fields

Modifier and Type	Field and Description
private org.apache.hadoop.conf.Configuration	config
private long	failureWindow
private HealthChecker	healthChecker
private static org.slf4j.Logger	LOG
private int	numTimesUnhealthy
private long	startWindow
private int	threshold

Constructor Summary

Constructors

Constructor and Description
HealthCheckChore(int sleepTime, Stoppable stopper, org.apache.hadoop.conf.Configuration conf)

Method Summary

Modifier and Type	Method and Description
protected void	chore() The task to execute on each scheduled execution of the Chore
private boolean	decideToStop()

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

cancel, cancel, choreForTesting, cleanup, getChoreServicer, getInitialDelay, getName, getPeriod, getStopper, getTimeBetweenRuns, getTimeOfLastRun, getTimeOfThisRun, getTimeUnit, initialChore, isInitialChoreComplete, isScheduled, run, setChoreServicer, toString, triggerNow

Methods inherited from class java.lang.Object

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

Field Detail

LOG

private static final org.slf4j.Logger LOG

healthChecker

private HealthChecker healthChecker

config

private org.apache.hadoop.conf.Configuration config

threshold

private int threshold

numTimesUnhealthy

private int numTimesUnhealthy

failureWindow

private long failureWindow

startWindow

private long startWindow

Constructor Detail

HealthCheckChore

public HealthCheckChore(int sleepTime,
                        Stoppable stopper,
                        org.apache.hadoop.conf.Configuration conf)

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

decideToStop

private boolean decideToStop()