org.corfudb.infrastructure

Class RemoteMonitoringService

java.lang.Object

org.corfudb.infrastructure.RemoteMonitoringService

All Implemented Interfaces:

MonitoringService

public class RemoteMonitoringService
extends Object
implements MonitoringService

Remote Monitoring Service constitutes of failure and healing monitoring and handling. This service is responsible for heartbeat and aggregating the cluster view. This is updated in the shared context with the management server which serves the heartbeat responses. The failure detector updates the unreachable nodes in the layout. The healing detector heals nodes which were previously marked unresponsive but have now healed. Created by zlokhandwala on 11/2/18.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	RemoteMonitoringService.DetectorTask

Method Summary

Modifier and Type	Method and Description
void	shutdown() Clean up.
void	start(Duration monitoringInterval) Executes task to run failure and healing detection every poll interval.

Methods inherited from class java.lang.Object

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

Method Detail

start

public void start(Duration monitoringInterval)

Executes task to run failure and healing detection every poll interval. (Default: 1 sec)

During the initialization step, the method: - triggers sequencer bootstrap - starts failure and healing detection mechanism, by running runDetectionTasks every second (by default). Next iteration of detection task can be run only if current iteration is completed.

Specified by:

start in interface MonitoringService

shutdown

public void shutdown()

Description copied from interface: MonitoringService

Clean up.

Specified by:

shutdown in interface MonitoringService