Problems with Eureka server

Question

I have a local eureka server and one client

Eureka:

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:

eureka:
  instance:
    prefer-ip-address: true
  client:
    serviceUrl:
    defaultZone: http://127.0.0.1:1111/eureka/

I have 2 problems:

1) Eureka server throws in log:

NullPointerException: at com.netflix.eureka.resources.StatusResource.isReplicaAvailable

2) The client connecting with Eureka, but after some time I see in his log next:

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

In log Eureka I see:

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

In Eureka web console the client has a UP status, but also there is a big inscription:

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

Although connection is working and I can get link to my client throught Eureka.

Could you explain what it means and how I can get rid from that?

Answer 1

serviceUrl:
defaultZone: http://127.0.0.1:1111/eureka/

in client setting YML, you should add space before "defaultZone" like this:

serviceUrl:
  defaultZone: http://127.0.0.1:1111/eureka/

else defaultZone is same level with serviceUrl. thanks