本文内容纲要：
-介绍
-术语和概念
-配置说明
-Eureka服务器配置
-EurekaInstacen配置
-Eureka客户端配置
介绍
SpringCloud是一个完整的微服务治理框架，包括服务发现和注册，服务网关，熔断，限流，负载均衡和链路跟踪等组件。
SpringCloud-Eureka主要提供服务注册和发现功能。本文提供了该组件配置的全面说明。
术语和概念
Eureka服务端：负责服务注册、发现并管理每项服务的中心
**Eureka实例：**服务（如订单系统）部署多个服务器，每个服务器上提供的服务都是实例。
Eureka服务：指提供特定服务功能的服务，例如：订单系统，同一服务可以提供多个实例;
Eureka客户端：主要向服务中心注册自己成为服务。但它既可以是服务提供者，也可以是消费者。它与
Eureka实例感觉相似，但实际上意义不同。
配置说明
Eureka服务器配置
################serverConfigurationassociatedwithclient####################33
#Openself-protectionmode.Nomatterwhatthesituation,theserverwillmaintainacertainnumberofservices.Avoidnetworkproblemsbetweenclientandserver,andalargenumberofservicesarecleared.
eureka.server.enable-self-preservation=true
#Enablethetimedtasktoclearinvalidservices.Default1minute
eureka.server.eviction-interval-timer-in-ms=60000
#Howlong,clearexpireddeltadata
eureka.server.delta-retention-timer-interval-in-ms=0
#,isitalsoavailabletotheclient?
eureka.server.disable-delta=false
#eurekaWhethertheserverrecordstheidentityoftheclientheader
eureka.server.log-identity-headers=true
#Requestfrequencylimiter
eureka.server.rate-limiter-burst-size=10
#Whethertoenabletherequestfrequencylimiter
eureka.server.rate-limiter-enabled=false
#Requestfrequencyaverage
eureka.server.rate-limiter-full-fetch-average-rate=100
#Whethertolimitthefrequencyrequesttothestandardclient.Iffalse,onlylimitnon-standardclients
eureka.server.rate-limiter-throttle-standard-clients=false
#Registerservice,averagevalueofrequestfrequencyforpullingservicelistdata
eureka.server.rate-limiter-registry-fetch-average-rate=500
#Setthetrustedclientlist
eureka.server.rate-limiter-privileged-clients=
#Inthesettimerangeclass,thepercentageexpectedtoberenewedwiththeclient.
eureka.server.renewal-percent-threshold=0.85
#Howlongtoupdatetherenewalthreshold
eureka.server.renewal-threshold-update-interval-ms=0
#Howlongdoesittakeforcachedregistrationdatatoexpire?
eureka.server.response-cache-auto-expiration-in-seconds=180
#Howlongtoupdatetheserviceregistrationdatainthecache
eureka.server.response-cache-update-interval-ms=0
#Cachethetimeoftheincrementaldatasothatnoinformationislostwhensearching
eureka.server.retention-time-in-m-s-in-delta-queue=0
#Whenthetimestampsareinconsistent,whethertosynchronize
eureka.server.sync-when-timestamp-differs=true
#Whethertoadoptaread-onlycachepolicy,theread-onlypolicydoesnotexpireforcacheddata.
eureka.server.use-read-only-response-cache=true
################serverCustomizedImplementationConfiguration####################33
#jsonsimplementationclassnameforconversion
eureka.server.json-codec-name=
#PropertyResolver
eureka.server.property-resolver=
#eurekaserverxmlcodecimplementationname
eureka.server.xml-codec-name=
################Associationbetweenservernodeandnode####################33
#replicationdataisintherequest,alwayscompressed
eureka.server.enable-replicated-request-compression=false
#Indicateswhetherreplicationbetweenclusternodesshouldbebatchedtoimprovenetworkefficiency.
eureka.server.batch-replication=false
#Allowthemaximumnumberofreplicationeventsthatarebackeduptothebackuppool.Thisbackuppoolisresponsibleforothereventsexceptstatusupdates.Thisvaluecanbesetaccordingtomemorysize,timeoutandreplicationtraffic.
eureka.server.max-elements-in-peer-replication-pool=10000
#Allowthemaximumnumberofreplicationeventsthatarebackeduptothestatefulbackuppool
eureka.server.max-elements-in-status-replication-pool=10000
#Multipleservicecenterssynchronizethemaximumidletimeofinformationthreadswitheachother
eureka.server.max-idle-thread-age-in-minutes-for-peer-replication=15
#Statussynchronizationthreadmaximumidletime
eureka.server.max-idle-thread-in-minutes-age-for-status-replication=15
#Serviceregistryeachinstanceofthemaximumnumberofthreadstocopydatatoeachother
eureka.server.max-threads-for-peer-replication=20
#Serviceregistryeachinstanceofthemaximumnumberofthreadscopyingstatedata
eureka.server.max-threads-for-status-replication=1
Communicationtimebetween#instanceanddatareplication
eureka.server.max-time-for-replication=30000
#Theminimumnumberofnormalpeer-to-peerservices.-1indicatesthattheservicecenterisasinglenode.
eureka.server.min-available-instances-for-peer-replication=-1
Theminimumnumberofthreadsopenedbetween#instanceandmutualreplication
eureka.server.min-threads-for-peer-replication=5
Between#instanceforstatereplication,theminimumnumberofthreadsopened
eureka.server.min-threads-for-status-replication=1
Numberoftimesthatcanberetriedwhencopyingdatabetween#instance
eureka.server.number-of-replication-retries=5
#eurekaHowoftentoupdatedatabetweennodes.Thedefaultis10minutes.
eureka.server.peer-eureka-nodes-update-interval-ms=600000
#eurekaThetimeintervalbetweenservicestatusupdates.
eureka.server.peer-eureka-status-refresh-time-interval-ms=0
#eurekaPeer-to-peerconnectiontimeout
eureka.server.peer-node-connect-timeout-ms=200
#eurekaidletimeafterpeernodeconnection
eureka.server.peer-node-connection-idle-timeout-seconds=30
#Readdataconnectiontimeoutbetweennodes
eureka.server.peer-node-read-timeout-ms=200
#eurekaserverTotalnumberofconnectionsbetweennodes
eureka.server.peer-node-total-connections=1000
#eurekaserverMaximumnumberofsinglemachinesconnectedbetweennodes
eureka.server.peer-node-total-connections-per-host=10
#Thenumberoftimeseurekatriedtoobtainregistrationinformationwhentheservicenodewasstarted
eureka.server.registry-sync-retries=
#Wheneurekatriestoobtainregistrationinformationmultipletimeswhentheservicenodestartsup
eureka.server.registry-sync-retry-wait-ms=
#Whentheeurekaserverisstarted,youcannotwaitfortheinstanceregistrationinformationfromthepeernode.Howlongshoulditwait?
eureka.server.wait-time-in-ms-when-sync-empty=0
################serverConfigurationassociatedwithremote####################33
#,isitalsoprovidedtotheremoteregion?
eureka.server.disable-delta-for-remote-regions=false
#Oldbehavioroftheapplicationthatisrolledbacktotheremotezone(ifconfigured)Ifthereisnoinstanceoftheapplicationinthelocalzone,itwillbedisabled.
eureka.server.disable-transparent-fallback-to-other-region=false
#IndicateswhetherthecontentobtainedfromtheEurekaservermustbecompressedfortheremotezoneiftheserversupportsit.
eureka.server.g-zip-content-from-remote-region=true
#Connectioneurekaremotenoteconnectiontimeout
eureka.server.remote-region-connect-timeout-ms=1000
#remoteregionApplicationwhitelist
eureka.server.remote-region-app-whitelist.
#Connecteurekaremotenoteconnectionidletime
eureka.server.remote-region-connection-idle-timeout-seconds=30
#ExecutingremoteregionTherequestthreadpoolsizeforobtainingregistrationinformation
eureka.server.remote-region-fetch-thread-pool-size=20
#remoteregionTimeoutfromreadingdatafrompeereureka
eureka.server.remote-region-read-timeout-ms=1000
#Timeintervalforobtainingregistrationinformationfromremoteregion
eureka.server.remote-region-registry-fetch-interval=30
#remoteregionThetotalnumberofconnectionsconnectingeurekanodes
eureka.server.remote-region-total-connections=1000
#remoteregionThenumberofstand-aloneconnectionsconnectingeurekanodes
eureka.server.remote-region-total-connections-per-host=50
#remoteregionfetchesthestoragefileoftheregistrationinformation,andthisreliablestoragefileneedsafullyqualifiednametospecify
eureka.server.remote-region-trust-store=
#remoteregionPasswordofthestoredfile
eureka.server.remote-region-trust-store-password=
#remoteregionurl.separatedbymultiplecommas
eureka.server.remote-region-urls=
#remoteregionurl.separatedbymultiplecommas
eureka.server.remote-region-urls-with-name.
################serverConfigurationassociatedwithASG/AWS/EIP/route52####################33
#CachetheexpirationtimeofASGinformation.
eureka.server.a-s-g-cache-expiry-timeout-ms=0
#QuerythetimeouttimeofASGinformation.
eureka.server.a-s-g-query-timeout-ms=300
#ServiceupdateASGinformationfrequency
eureka.server.a-s-g-update-interval-ms=0
#AWSAccessID
eureka.server.a-w-s-access-id=
#AWSSecurityKey
eureka.server.a-w-s-secret-key=
#AWSbindingstrategy
eureka.server.binding-strategy=eip
#Usethenameoftherolethatautomaticallyextendsthegroupingfromathird-partyAWSaccountdescription.
eureka.server.list-auto-scaling-groups-role-name=
#Whethershouldestablishaconnectionguide
eureka.server.prime-aws-replica-connections=true
#NumberoftimestheservertriestobindcandidateEIPs
eureka.server.e-i-p-bind-rebind-retries=3
#ThetimeintervalatwhichtheserverbindstheEIP.Ifthebindingischecked,itisre-boundifthebindingfails.Ifandonlyifitisalreadybound
eureka.server.e-i-p-binding-retry-interval-ms=10
#TimeintervalatwhichtheserverbindsEIP.Ifandonlyiftheserviceisbound
eureka.server.e-i-p-binding-retry-interval-ms-when-unbound=
#Thenumberoftimestheservertriestobindroute53
eureka.server.route53-bind-rebind-retries=3
#Servletintervalhowlongtotrytobindroute53
eureka.server.route53-binding-retry-interval-ms=30
#
eureka.server.route53-domain-t-t-l=10
EurekaInstacen配置
#Hostnameoftheserviceregistryinstance
eureka.instance.hostname=localhost
#RegistertheapplicationgroupnameintheEurekaservice
eureka.instance.app-group-name=
#RegistertheapplicationnameintheEurekaservice
eureka.instance.appname=
#UniqueIDoftheinstanceregisteredtotheservicecenter
eureka.instance.instance-id=
#IPaddressoftheinstance
eureka.instance.ip-address=
#Instance,whetherIPispreferredoverhostname
eureka.instance.prefer-ip-address=false
#GroupnameassociatedwiththisinstanceforautomaticextensionoftheAWSplatform,
eureka.instance.a-s-g-name=
#Deploythedatacenterforthisinstance
eureka.instance.data-center-info=
#Defaultaddressresolutionorder
eureka.instance.default-address-resolution-order=
#Instanceenvironmentconfiguration
eureka.instance.environment=
#Initializetheinstanceandregistertotheinitialstateoftheservicecenter
eureka.instance.initial-status=up
#Indicatewhetheraslongasthisinstanceisregisteredtotheservicecenter,immediatelycommunicate
eureka.instance.instance-enabled-onit=false
#Thenamespaceoftheserviceinstanceforfindingattributes
eureka.instance.namespace=eureka
#Thechilddefinitionmetadataoftheserviceinstancecanbeacceptedbytheservicecenter.
eureka.instance.metadata-map.test=test
#Servicecenterdeletesthewaitingtime(inseconds)ofthisserviceinstance,andthetimeintervalistheheartbeattimereceivedbythelastservicecenter.
eureka.instance.lease-expiration-duration-in-seconds=90
#Theintervalatwhichtheinstancesendsaheartbeattotheservicecentertoindicatethattheserviceinstanceisavailable.
eureka.instance.lease-renewal-interval-in-seconds=30
#Instance,registrationservicecenter,thenumberofcommunicationopenedbydefault
eureka.instance.registry.default-open-for-traffic-count=1
#Numberofrenewalsperminute
eureka.instance.registry.expected-number-of-renews-per-min=1
#Instancehealthcheckurl,absolutepath
eureka.instance.health-check-url=
#Instancehealthcheckurl,relativepath
eureka.instance.health-check-url-path=/health
#Instanceshomepageurl,absolutepath
eureka.instance.home-page-url=
#Instanceshomepageurl,relativepath
eureka.instance.home-page-url-path=/
#Instancesecurityhealthcheckurl,absolutepath
eureka.instance.secure-health-check-url=
#https
eureka.instance.secure-port=443
#httpsCommunicationportisenabled
eureka.instance.secure-port-enabled=false
#http
eureka.instance.non-secure-port=80
#httpCommunicationportisenabled
eureka.instance.non-secure-port-enabled=true
#Securityvirtualhostname(https)forthisinstance
eureka.instance.secure-virtual-host-name=unknown
#Virtualhostnameofthisinstance(http)
eureka.instance.virtual-host-name=unknown
#Thestatusoftheinstanceisrenderedurl,absolutepath
eureka.instance.status-page-url=
#Thestatusoftheinstanceisrenderedurl,relativepath
eureka.instance.status-page-url-path=/status
Eureka客户端配置
#Thisclientisavailable
eureka.client.enabled=true
#InstanceWhethertoregisteryourowninformationontheeurekaserverforotherservicestodiscover,thedefaultistrue
eureka.client.register-with-eureka=false
#Thisclientgetstheregistrationinformationontheeurekaserverregistry,thedefaultistrue
eureka.client.fetch-registry=false
#Whethertofilterout,non-UPinstances.Defaultistrue
eureka.client.filter-only-up-instances=true
#zoneandurladdresswithEurekaRegistrationServiceCenter
eureka.client.serviceUrl.defaultZone=http://${eureka.instance.hostname}:${server.port}/eureka/
#clientistheidlewaitingtimeafterconnectingtotheEurekaserver.Thedefaultis30seconds.
eureka.client.eureka-connection-idle-timeout-seconds=30
#clientconnectstoeurekaserverconnectiontimeout,thedefaultis5seconds
eureka.client.eureka-server-connect-timeout-seconds=5
#clientReadtimeoutfortheserver
eureka.client.eureka-server-read-timeout-seconds=8
#clientConnectionalleurekaservertotalnumberofconnections,thedefault200
eureka.client.eureka-server-total-connections=200
#clientConnecttothenumberofsingle-machineconnectionsontheeurekaserver.Thedefaultis50.
eureka.client.eureka-server-total-connections-per-host=50
#Executiveindexrollbackrefreshrelatedattribute,whichisthemaximummultipleoftheretrydelay,thedefaultis10
eureka.client.cache-refresh-executor-exponential-back-off-bound=10
#Executionprogramcacherefreshthreadpoolsize,thedefaultis5
eureka.client.cache-refresh-executor-thread-pool-size=2
#Executionprogramrollbackrelatedattributes,whichisthemaximummultipleoftheretrydelay.Thedefaultis10
eureka.client.heartbeat-executor-exponential-back-off-bound=10
#Executionprogramthreadpoolsize,thedefaultis5
eureka.client.heartbeat-executor-thread-pool-size=5
#Askthefrequency(s)oftheEurekaserviceurlinformationchange,thedefaultis300seconds
eureka.client.eureka-service-url-poll-interval-seconds=300
#Thetime(s)requiredtoinitiallycopytheinstanceinformationtotheeurekaserver.Thedefaultis40seconds.
eureka.client.initial-instance-info-replication-interval-seconds=40
#Howlongdoesittaketocopytheinstanceinformationtotheeurekaserveragain,thedefaultis30seconds?
eureka.client.instance-info-replication-interval-seconds=30
#Timeinterval(s)fromtheeurekaserverregistrytoobtainregistrationinformation,thedefaultis30seconds
eureka.client.registry-fetch-interval-seconds=30
#Gettheregionwheretheinstanceislocated.Thedefaultisus-east-1
eureka.client.region=us-east-1
#InstanceWhethertousetheeurekaserverinthesamezone,thedefaultistrue.Ideally,theeurekaclientandserverareinthesamezone.
eureka.client.prefer-same-zone-eureka=true
#Getalistofavailableareasintheregionwheretheinstanceislocated,separatedbycommas.(AWS)
eureka.client.availability-zones.china=defaultZone,defaultZone1,defaultZone2
Thelistofcomma-separatedregionsinthe#eurekaserviceregistryinformation.Ifyoudonotreturntheseregions,theclientwillstartupwitherrors.Thedefaultisnull
eureka.client.fetch-remote-regions-registry=
#Serverisabletoredirectclientrequeststothebackupserver.Ifsettofalse,theserverwillprocesstherequestdirectly,andifsettotrue,itmaysendanHTTPredirecttotheclient.Defaultisfalse
eureka.client.allow-redirects=false
#
eureka.client.client-data-accept=
#Incrementalinformationcanbeprovidedtotheclient,thedefaultisfalse
eureka.client.disable-delta=false
The#eurekaserverserialization/deserializationinformationobtainsthereplacementstringofthe"_"symbol.Thedefaultis"__"
eureka.client.escape-char-replacement=__
The#eurekaserverserialization/deserializationinformationobtainsareplacementstringforthe"$"symbol.Thedefaultis"_-"
eureka.client.dollar-replacement="_-"
#Whentheserversupportscompression,whethertosupporttheinformationobtainedfromtheserverforcompression.Defaultistrue
eureka.client.g-zip-content=true
#Whethertorecordthedifferencebetweentheinformationintheregistrybetweentheeurekaserverandtheclient,thedefaultisfalse
eureka.client.log-delta-diff=false
#Ifsettotrue,theclientsstatusupdatewillbeupdatedon-demandtotheremoteserver.Thedefaultistrue.
eureka.client.on-demand-update-status-change=true
#ThisclientisonlyinterestedininformationaboutasingleVIPregistry.Thedefaultisnull
eureka.client.registry-refresh-single-vip-address=
#clientisforcedtoregistertotheservicecenterduringtheinitializationphase,thedefaultisfalse
eureka.client.should-enforce-registration-at-init=false
#clientWhentheshutdownisdisplayed,thelogoutserviceisdisplayedfromtheservicecenter.Thedefaultistrue.
eureka.client.should-unregister-on-shutdown=true
#Gettheproxyhostoftheeurekaservice,thedefaultisnull
eureka.client.proxy-host=
#Gettheproxypasswordoftheeurekaservice,thedefaultisnull
eureka.client.proxy-password=
#Gettheproxyportoftheeurekaservice,thedefaultisnull
eureka.client.proxy-port=
#Gettheproxyusernameoftheeurekaservice,thedefaultisnull
eureka.client.proxy-user-name=
#Attributeinterpreter
eureka.client.property-resolver=
#Gettheimplementationnameofthefallbackoptionwhentheeurekaclientreadstheregistryatthefirststartup.
eureka.client.backup-registry-impl=
#×××Configuration,ifthelatestXXXisstable,itcanberemoved,thedefaultisnull
eureka.client.decoder-name=
#,ifthelatestencoderisstable,itcanberemoved,thedefaultisnull
eureka.client.encoder-name=
#WhethertousetheDNSmechanismtogetalistofservicesandthencommunicate.Defaultisfalse
eureka.client.use-dns-for-fetching-service-urls=false
#GettheDNSnametobequeriedtogettheeurekaserver.ThisconfigurationisonlyusedwhentheeurekaserveripaddresslistisintheDNS.Thedefaultisnull
eureka.client.eureka-server-d-n-s-name=
#Gettheportoftheeurekaserver.ThisconfigurationisonlyusedwhentheeurekaserveripaddresslistisintheDNS.Thedefaultisnull
eureka.client.eureka-server-port=
#indicatesthepathoftheeurekaregistrationcenter.Ifitisconfiguredaseureka,itishttp://x.x.x.x:x/eureka/.Addingthisconfigurationtotheeurekaconfigurationfileindicatesthateurekaisregisteredasaclienttotheregistrationcentertoformaneurekacluster.ThisconfigurationisonlyusedintheDNSaddresslistoftheeurekaserver.Thedefaultisnull.
eureka.client.eureka-server-u-r-l-context=
本文内容总结：介绍，术语和概念，配置说明，Eureka服务器配置，EurekaInstacen配置，Eureka客户端配置，
原文链接：https://www.cnblogs.com/BlogNetSpace/p/11264235.html
