alluxio.heartbeat

Interface HeartbeatTimer

All Superinterfaces:

Reconfigurable

All Known Implementing Classes:

ScheduledTimer, SleepingTimer

public interface HeartbeatTimer
extends Reconfigurable

An interface for heartbeat timers. The HeartbeatThread calls the tick() method.

Method Summary

Modifier and Type	Method and Description
long	tick() Waits until next heartbeat should be executed.
default void	update() When this object needs to be reconfigured due to external configuration change etc., this function will be invoked.

Method Detail

update

default void update()

When this object needs to be reconfigured due to external configuration change etc., this function will be invoked.

Specified by:

update in interface Reconfigurable

tick

long tick()
   throws InterruptedException

Waits until next heartbeat should be executed.

Returns:

time limit in milliseconds for this heartbeat action to run for before the next heartbeat is due.

Throws:

InterruptedException - if the thread is interrupted while waiting