Package org.apache.ignite.events

Class CacheConsistencyViolationEvent

java.lang.Object

org.apache.ignite.events.EventAdapter

org.apache.ignite.events.CacheConsistencyViolationEvent

All Implemented Interfaces:

Serializable, Comparable<Event>, Event

public class CacheConsistencyViolationEvent
extends EventAdapter

This is an experimental API.

Event indicates a consistency violation.

Grid events are used for notification about what happens within the grid. Note that by design Ignite keeps all events generated on the local node locally and it provides APIs for performing a distributed queries across multiple nodes:

• IgniteEvents.remoteQuery(org.apache.ignite.lang.IgnitePredicate, long, int...) - asynchronously querying events occurred on the nodes specified, including remote nodes.
• IgniteEvents.localQuery(org.apache.ignite.lang.IgnitePredicate, int...) - querying only local events stored on this local node.
• IgniteEvents.localListen(org.apache.ignite.lang.IgnitePredicate, int...) - listening to local grid events (events from remote nodes not included).

User can also wait for events using method IgniteEvents.waitForLocal(org.apache.ignite.lang.IgnitePredicate, int...).

Events and Performance

Note that by default all events in Ignite are enabled and therefore generated and stored by whatever event storage SPI is configured. Ignite can and often does generate thousands events per seconds under the load and therefore it creates a significant additional load on the system. If these events are not needed by the application this load is unnecessary and leads to significant performance degradation.

It is highly recommended to enable only those events that your application logic requires by using IgniteConfiguration.getIncludeEventTypes() method in Ignite configuration. Note that certain events are required for Ignite's internal operations and such events will still be generated but not stored by event storage SPI if they are disabled in Ignite configuration.

See Also:

EventType.EVT_CONSISTENCY_VIOLATION, Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	CacheConsistencyViolationEvent.EntriesInfo	Inconsistent entries mapping.
static interface	CacheConsistencyViolationEvent.EntryInfo	Inconsistent entry info.

Constructor Summary

Constructors

Constructor	Description
CacheConsistencyViolationEvent(String cacheName, ClusterNode node, String msg, Map<Object,CacheConsistencyViolationEvent.EntriesInfo> entries, Map<Object,Object> repaired, ReadRepairStrategy strategy)	Creates a new instance of CacheConsistencyViolationEvent.

Method Summary

Modifier and Type	Method	Description
String	getCacheName()	Returns cache name.
Map<Object,CacheConsistencyViolationEvent.EntriesInfo>	getEntries()	Returns a mapping of keys to a collection of original entries.
Map<Object,Object>	getRepairedEntries()	Returns a mapping of keys to a collection of repaired entries.
ReadRepairStrategy	getStrategy()	Returns strategy.

Methods inherited from class org.apache.ignite.events.EventAdapter

compareTo, equals, hashCode, id, localOrder, message, message, name, node, node, shortDisplay, timestamp, toString, type, type

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

CacheConsistencyViolationEvent

public CacheConsistencyViolationEvent(String cacheName,
                                      ClusterNode node,
                                      String msg,
                                      Map<Object,CacheConsistencyViolationEvent.EntriesInfo> entries,
                                      Map<Object,Object> repaired,
                                      ReadRepairStrategy strategy)

Creates a new instance of CacheConsistencyViolationEvent.

Parameters:

cacheName - Cache name.

node - Local node.

msg - Event message.

entries - Collection of original entries.

repaired - Collection of repaired entries.

strategy - Strategy.

Method Detail

getEntries

public Map<Object,CacheConsistencyViolationEvent.EntriesInfo> getEntries()

Returns a mapping of keys to a collection of original entries.

Returns:

Collection of original entries.

getRepairedEntries

public Map<Object,Object> getRepairedEntries()

Returns a mapping of keys to a collection of repaired entries.

Returns:

Collection of repaired entries.

getCacheName

public String getCacheName()

Returns cache name.

Returns:

Cache name.

getStrategy

public ReadRepairStrategy getStrategy()

Returns strategy.

Returns:

Strategy.