Java Eureka 服务器的问题
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Problems with Eureka server
提问by slippery
I have a local eureka server and one client
我有一个本地尤里卡服务器和一个客户端
Eureka:
尤里卡：
server:
port: 1111
eureka:
instance:
prefer-ip-address: true
client:
registerWithEureka: false
fetchRegistry: false
serviceUrl:
defaultZone: http://127.0.0.1:1111/eureka/
server:
waitTimeInMsWhenSyncEmpty: 0
Client:
客户：
eureka:
instance:
prefer-ip-address: true
client:
serviceUrl:
defaultZone: http://127.0.0.1:1111/eureka/
I have 2 problems:
我有两个问题：
1) Eureka server throws in log:
1）尤里卡服务器抛出日志：
NullPointerException: at com.netflix.eureka.resources.StatusResource.isReplicaAvailable
NullPointerException：在 com.netflix.eureka.resources.StatusResource.isReplicaAvailable
2) The client connecting with Eureka, but after some time I see in his log next:
2) 客户端与 Eureka 连接，但一段时间后我在他的日志中看到：
RedirectingEurekaHttpClient : Request execution error javax.ws.rs.WebApplicationException: null at com.netflix.discovery.provider.DiscoveryJerseyProvider.readFrom(DiscoveryJerseyProvider.java:110)
RetryableEurekaHttpClient : Request execution failure DiscoveryClient : DiscoveryClient_MW/192.168.0.100:client:8080 - was unable to send heartbeat!
com.netflix.discovery.shared.transport.TransportException: Cannot execute request on any known server
RedirectingEurekaHttpClient：请求执行错误 javax.ws.rs.WebApplicationException：com.netflix.discovery.provider.DiscoveryJerseyProvider.readFrom(DiscoveryJerseyProvider.java:110) 处为空
RetryableEurekaHttpClient : 请求执行失败 DiscoveryClient : DiscoveryClient_MW/192.168.0.100:client:8080 - 无法发送心跳！
com.netflix.discovery.shared.transport.TransportException：无法在任何已知服务器上执行请求
In log Eureka I see:
在日志尤里卡我看到：
InstanceRegistry : DS: Registry: lease doesn't exist, registering resource: CLIENT - 192.168.0.100:client:8080 InstanceResource : Not Found (Renew): CLIENT - 192.168.0.100:client:8080
InstanceRegistry：DS：Registry：租约不存在，注册资源：CLIENT - 192.168.0.100:client:8080 InstanceResource：未找到（续订）：CLIENT - 192.168.0.100:client:8080
In Eureka web console the client has a UP status, but also there is a big inscription:
在 Eureka Web 控制台中，客户端具有 UP 状态，但还有一个很大的铭文：
RENEWALS ARE LESSER THAN THE THRESHOLD. THE SELF PRESERVATION MODE IS TURNED OFF.THIS MAY NOT PROTECT INSTANCE EXPIRY IN CASE OF NETWORK/OTHER PROBLEM
续订少于阈值。自我保护模式已关闭。如果网络/其他问题，这可能无法保护实例到期
Although connection is working and I can get link to my client throught Eureka.
尽管连接正常，但我可以通过 Eureka 获得到我的客户端的链接。
Could you explain what it means and how I can get rid from that?
你能解释一下这意味着什么以及我如何摆脱它吗？
回答by u6852245
serviceUrl:
defaultZone: http://127.0.0.1:1111/eureka/
in client setting YML, you should add space before "defaultZone" like this:
在客户端设置 YML 中，您应该在“defaultZone”之前添加空格，如下所示：
serviceUrl:
defaultZone: http://127.0.0.1:1111/eureka/
else defaultZone is same level with serviceUrl. thanks
否则 defaultZone 与 serviceUrl 处于同一级别。谢谢
