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Package oracle.simplefan

Provides easy access to Oracle Fast Application Notification (FAN) events.

See:
Description

Interface Summary

FanEventListener
FanSubscription

Class Summary

FanEvent	This abstract class supports three types of FAN events: service events, node down events, and load advisory (RLB) events.
FanManager	The sole instance of this class is used to manage access to FAN events.
LoadAdvisoryEvent	This FAN event provides advice that directs load balancing for subscribers.
NodeDownEvent	The event posted when a node goes down.
ServiceDownEvent	A container that can hold both kinds of service events.
ServiceDownEvent.ServiceMemberEvent	The service member event that reflects the status change of a service on a particular instance (and node).

Enum Summary

LoadAdvisoryEvent.LoadStatus
ServiceDownEvent.EventKind
ServiceDownEvent.Reason

Package oracle.simplefan Description

Provides easy access to Oracle Fast Application Notification (FAN) events. FAN events are produced by Oracle Real Application Cluster (RAC) clusters to communicate significant changes in cluster state. This package provides easy access to a subset of FAN messages. The subset is sufficient to satisfy most user needs while the simple API hides the full complexity of the complete FAN event mechanism.

This package supports four FAN events.

Load Balancing Advisory

contain information that aids distributing work

Service Member Down

reports than one member instance of a service is down

Service Composite Down

reports that all member instances of a service are down

Node Down

reports that a node (host) is down

ons.config

localport=4100
remoteport=4200
loglevel=3
nodes=myhost.myco.com:6200

Related Documentation

For overviews, tutorials, examples, guides, and tool documentation, please see:

• Oracle Database JDBC Developer's Guide