org.springframework.cloud.netflix.eureka.server

Class InstanceRegistry

java.lang.Object

com.netflix.eureka.registry.AbstractInstanceRegistry

com.netflix.eureka.registry.PeerAwareInstanceRegistryImpl

org.springframework.cloud.netflix.eureka.server.InstanceRegistry

All Implemented Interfaces:

com.netflix.discovery.shared.LookupService<String>, com.netflix.eureka.lease.LeaseManager<com.netflix.appinfo.InstanceInfo>, com.netflix.eureka.registry.InstanceRegistry, com.netflix.eureka.registry.PeerAwareInstanceRegistry, org.springframework.beans.factory.Aware, org.springframework.context.ApplicationContextAware

public class InstanceRegistry
extends com.netflix.eureka.registry.PeerAwareInstanceRegistryImpl
implements org.springframework.context.ApplicationContextAware

Author:

Spencer Gibb

Nested Class Summary

Nested classes/interfaces inherited from class com.netflix.eureka.registry.PeerAwareInstanceRegistryImpl

com.netflix.eureka.registry.PeerAwareInstanceRegistryImpl.Action

Field Summary

Fields inherited from class com.netflix.eureka.registry.PeerAwareInstanceRegistryImpl

eurekaClient, peerEurekaNodes

Fields inherited from class com.netflix.eureka.registry.AbstractInstanceRegistry

allKnownRemoteRegions, clientConfig, expectedNumberOfClientsSendingRenews, lock, numberOfRenewsPerMinThreshold, overriddenInstanceStatusMap, regionNameVSRemoteRegistry, responseCache, serverCodecs, serverConfig

Constructor Summary

Constructors

Constructor and Description
InstanceRegistry(com.netflix.eureka.EurekaServerConfig serverConfig, com.netflix.discovery.EurekaClientConfig clientConfig, com.netflix.eureka.resources.ServerCodecs serverCodecs, com.netflix.discovery.EurekaClient eurekaClient, int expectedNumberOfClientsSendingRenews, int defaultOpenForTrafficCount)

Method Summary

Modifier and Type	Method and Description
boolean	cancel(String appName, String serverId, boolean isReplication)
protected boolean	internalCancel(String appName, String id, boolean isReplication)
void	openForTraffic(com.netflix.appinfo.ApplicationInfoManager applicationInfoManager, int count) If PeerAwareInstanceRegistryImpl.openForTraffic(ApplicationInfoManager, int) is called with a zero argument, it means that leases are not automatically cancelled if the instance hasn't sent any renewals recently.
void	register(com.netflix.appinfo.InstanceInfo info, boolean isReplication)
void	register(com.netflix.appinfo.InstanceInfo info, int leaseDuration, boolean isReplication)
boolean	renew(String appName, String serverId, boolean isReplication)
void	setApplicationContext(org.springframework.context.ApplicationContext context)

Methods inherited from class com.netflix.eureka.registry.PeerAwareInstanceRegistryImpl

deleteStatusOverride, getInstanceInfoOverrideRule, getLocalRegistrySize, getNextServerFromEureka, getNumOfReplicationsInLastMin, getReplicaNodes, getSortedApplications, init, isBelowRenewThresold, isLeaseExpirationEnabled, isLeaseExpirationEnabledMetric, isRegisterable, isSelfPreservationModeEnabled, isSelfPreservationModeEnabledMetric, shouldAllowAccess, shouldAllowAccess, shouldAllowAccessMetric, shutdown, statusUpdate, statusUpdate, syncUp

Methods inherited from class com.netflix.eureka.registry.AbstractInstanceRegistry

clearRegistry, evict, evict, getApplication, getApplication, getApplicationDeltas, getApplicationDeltasFromMultipleRegions, getApplications, getApplications, getApplicationsFromAllRemoteRegions, getApplicationsFromLocalRegionOnly, getApplicationsFromMultipleRegions, getInstanceByAppAndId, getInstanceByAppAndId, getInstancesById, getInstancesById, getLastNCanceledInstances, getLastNRegisteredInstances, getNumberofElementsininstanceCache, getNumOfRenewsInLastMin, getNumOfRenewsPerMinThreshold, getOverriddenInstanceStatus, getResponseCache, initializedResponseCache, initRemoteRegionRegistry, overriddenInstanceStatusesSnapshot, postInit, storeOverriddenStatusIfRequired, storeOverriddenStatusIfRequired, updateRenewsPerMinThreshold

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.netflix.eureka.registry.InstanceRegistry

clearRegistry, getApplication, getApplicationsFromLocalRegionOnly, getInstanceByAppAndId, getInstanceByAppAndId, getLastNCanceledInstances, getLastNRegisteredInstances, getNumOfRenewsInLastMin, getNumOfRenewsPerMinThreshold, getResponseCache, initializedResponseCache, overriddenInstanceStatusesSnapshot, storeOverriddenStatusIfRequired, storeOverriddenStatusIfRequired

Methods inherited from interface com.netflix.eureka.lease.LeaseManager

evict

Methods inherited from interface com.netflix.discovery.shared.LookupService

getApplication, getApplications, getInstancesById

Constructor Detail

InstanceRegistry

public InstanceRegistry(com.netflix.eureka.EurekaServerConfig serverConfig,
                        com.netflix.discovery.EurekaClientConfig clientConfig,
                        com.netflix.eureka.resources.ServerCodecs serverCodecs,
                        com.netflix.discovery.EurekaClient eurekaClient,
                        int expectedNumberOfClientsSendingRenews,
                        int defaultOpenForTrafficCount)

Method Detail

setApplicationContext

public void setApplicationContext(org.springframework.context.ApplicationContext context)
                           throws org.springframework.beans.BeansException

Specified by:

setApplicationContext in interface org.springframework.context.ApplicationContextAware

Throws:

org.springframework.beans.BeansException

openForTraffic

public void openForTraffic(com.netflix.appinfo.ApplicationInfoManager applicationInfoManager,
                           int count)

If PeerAwareInstanceRegistryImpl.openForTraffic(ApplicationInfoManager, int) is called with a zero argument, it means that leases are not automatically cancelled if the instance hasn't sent any renewals recently. This happens for a standalone server. It seems like a bad default, so we set it to the smallest non-zero value we can, so that any instances that subsequently register can bump up the threshold.

Specified by:

openForTraffic in interface com.netflix.eureka.registry.InstanceRegistry

Overrides:

openForTraffic in class com.netflix.eureka.registry.PeerAwareInstanceRegistryImpl

register

public void register(com.netflix.appinfo.InstanceInfo info,
                     int leaseDuration,
                     boolean isReplication)

Specified by:

register in interface com.netflix.eureka.lease.LeaseManager<com.netflix.appinfo.InstanceInfo>

Overrides:

register in class com.netflix.eureka.registry.AbstractInstanceRegistry

register

public void register(com.netflix.appinfo.InstanceInfo info,
                     boolean isReplication)

Specified by:

register in interface com.netflix.eureka.registry.PeerAwareInstanceRegistry

Overrides:

register in class com.netflix.eureka.registry.PeerAwareInstanceRegistryImpl

cancel

public boolean cancel(String appName,
                      String serverId,
                      boolean isReplication)

Specified by:

cancel in interface com.netflix.eureka.lease.LeaseManager<com.netflix.appinfo.InstanceInfo>

Overrides:

cancel in class com.netflix.eureka.registry.PeerAwareInstanceRegistryImpl

renew

public boolean renew(String appName,
                     String serverId,
                     boolean isReplication)

Specified by:

renew in interface com.netflix.eureka.lease.LeaseManager<com.netflix.appinfo.InstanceInfo>

Overrides:

renew in class com.netflix.eureka.registry.PeerAwareInstanceRegistryImpl

internalCancel

protected boolean internalCancel(String appName,
                                 String id,
                                 boolean isReplication)

Overrides:

internalCancel in class com.netflix.eureka.registry.AbstractInstanceRegistry