How to eliminate the "Eureka may be incorrectly claiming instances are up when they're not" warning on Eureka Dashboard?

java spring spring-cloud netflix-eureka spring-cloud-netflix
Krish picture Krish · Oct 31, 2017 · Viewed 8.8k times · Source

How to eliminate the following message on Eureka server dashboard? Will it cause any issue to my services?

EMERGENCY! EUREKA MAY BE INCORRECTLY CLAIMING INSTANCES ARE UP WHEN THEY'RE NOT. RENEWALS ARE LESSER THAN THRESHOLD AND HENCE THE INSTANCES ARE NOT BEING EXPIRED JUST TO BE SAFE.

Eureka dashboard

Thanks.

Answer

Khairul Bashar Lemon picture Khairul Bashar Lemon · Aug 21, 2020

On your EurekaServer configuration properties file, change the value of wait-time-in-ms-when-sync-empty to zero or delete this line, cause default value is zero.

eureka:
  server:
    wait-time-in-ms-when-sync-empty: 0

Related questions

Problems with Eureka server

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) …

Read More
Using Eureka as a registry using REST APIs

We have been using Eureka with our Spring Boot applications for few months now. We have enabled service lookup between applications using @DiscoveryClient annotations. The registrations, lease renewals and deregistration works as expected. Recently, we have encountered a scenario where …

Read More
How can I get the Discovery Client working when using spring-cloud together with netflix Eureka?

I'm trying to make a basic project using spring cloud with the netflix addons such as Hystrix, Eureka and Ribbon to learn how this works. The project I'm trying to make is a simple message server that will keep messages. …

Read More