I just created a new Spring-Boot-Admin project from the Initializr, and followed the instructions from here: http://codecentric.github.io/spring-boot-admin/2.0.0/
Here is my class:
@Configuration
@EnableAutoConfiguration
@EnableDiscoveryClient
@EnableAdminServer
public class ServiceAdminApplication {
public static void main(String[] args) {
SpringApplication.run(ServiceAdminApplication.class, args);
}
}
Here is my properties file:
eureka.instance.leaseRenewalIntervalInSeconds=10
eureka.instance.health-check-url-path=/actuator/health
eureka.client.registryFetchIntervalSeconds=5
eureka.client.serviceUrl.defaultZone=http://my.eureka.url:8580/eureka/
management.endpoints.web.exposure.include=*
management.endpoint.health.show-details=ALWAYS
I have a working Eureka registry which has a number of Spring-Boot applications registered in it. I know this is working because they are able to find each other and communicate via the Eureka registry.
When I start my new SBA app, I can see it register itself within the Eureka registry, so it is finding Eureka. However, when I open the SBA UI, it is empty, just saying "No applications registered." On my console, I can see the following stack trace over and over.
java.io.IOException: An established connection was aborted by the software in your host machine at sun.nio.ch.SocketDispatcher.write0(Native Method) ~[na:1.8.0_151] at sun.nio.ch.SocketDispatcher.write(SocketDispatcher.java:51) ~[na:1.8.0_151] at sun.nio.ch.IOUtil.writeFromNativeBuffer(IOUtil.java:93) ~[na:1.8.0_151] at sun.nio.ch.IOUtil.write(IOUtil.java:65) ~[na:1.8.0_151] at sun.nio.ch.SocketChannelImpl.write(SocketChannelImpl.java:471) ~[na:1.8.0_151] at org.apache.tomcat.util.net.NioChannel.write(NioChannel.java:134) ~[tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.tomcat.util.net.NioBlockingSelector.write(NioBlockingSelector.java:101) ~[tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.tomcat.util.net.NioSelectorPool.write(NioSelectorPool.java:157) ~[tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.tomcat.util.net.NioEndpoint$NioSocketWrapper.doWrite(NioEndpoint.java:1276) ~[tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.tomcat.util.net.SocketWrapperBase.doWrite(SocketWrapperBase.java:670) ~[tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.tomcat.util.net.SocketWrapperBase.flushBlocking(SocketWrapperBase.java:607) ~[tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.tomcat.util.net.SocketWrapperBase.flush(SocketWrapperBase.java:597) ~[tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.coyote.http11.Http11OutputBuffer$SocketOutputBuffer.flush(Http11OutputBuffer.java:646) ~[tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.coyote.http11.filters.ChunkedOutputFilter.flush(ChunkedOutputFilter.java:169) ~[tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.coyote.http11.Http11OutputBuffer.flush(Http11OutputBuffer.java:252) ~[tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.coyote.http11.Http11Processor.flush(Http11Processor.java:1564) ~[tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.coyote.AbstractProcessor.action(AbstractProcessor.java:352) ~[tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.coyote.Response.action(Response.java:173) ~[tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.catalina.connector.OutputBuffer.doFlush(OutputBuffer.java:317) ~[tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.catalina.connector.OutputBuffer.flush(OutputBuffer.java:284) ~[tomcat-embed-core-8.5.31.jar:8.5.31] at org.apache.catalina.connector.CoyoteOutputStream.flush(CoyoteOutputStream.java:118) ~[tomcat-embed-core-8.5.31.jar:8.5.31] at sun.nio.cs.StreamEncoder.implFlush(StreamEncoder.java:297) ~[na:1.8.0_151] at sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:141) ~[na:1.8.0_151] at java.io.OutputStreamWriter.flush(OutputStreamWriter.java:229) ~[na:1.8.0_151] at org.springframework.util.StreamUtils.copy(StreamUtils.java:121) ~[spring-core-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.http.converter.StringHttpMessageConverter.writeInternal(StringHttpMessageConverter.java:103) ~[spring-web-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.http.converter.StringHttpMessageConverter.writeInternal(StringHttpMessageConverter.java:43) ~[spring-web-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.http.converter.AbstractHttpMessageConverter.write(AbstractHttpMessageConverter.java:224) ~[spring-web-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.web.servlet.mvc.method.annotation.ResponseBodyEmitterReturnValueHandler$HttpMessageConvertingHandler.sendInternal(ResponseBodyEmitterReturnValueHandler.java:199) ~[spring-webmvc-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.web.servlet.mvc.method.annotation.ResponseBodyEmitterReturnValueHandler$HttpMessageConvertingHandler.send(ResponseBodyEmitterReturnValueHandler.java:189) ~[spring-webmvc-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.web.servlet.mvc.method.annotation.ResponseBodyEmitter.sendInternal(ResponseBodyEmitter.java:189) ~[spring-webmvc-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.web.servlet.mvc.method.annotation.ResponseBodyEmitter.send(ResponseBodyEmitter.java:183) ~[spring-webmvc-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.web.servlet.mvc.method.annotation.SseEmitter.send(SseEmitter.java:133) ~[spring-webmvc-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.web.servlet.mvc.method.annotation.ReactiveTypeHandler$SseEmitterSubscriber.send(ReactiveTypeHandler.java:341) ~[spring-webmvc-5.0.6.RELEASE.jar:5.0.6.RELEASE] at org.springframework.web.servlet.mvc.method.annotation.ReactiveTypeHandler$AbstractEmitterSubscriber.run(ReactiveTypeHandler.java:283) ~[spring-webmvc-5.0.6.RELEASE.jar:5.0.6.RELEASE] at java.lang.Thread.run(Thread.java:748) [na:1.8.0_151]
More details to joshiste's answer.
Change dependency version to 2.0.1-SNAPSHOT:
<dependency>
<groupId>de.codecentric</groupId>
<artifactId>spring-boot-admin-starter-server</artifactId>
<version>2.0.1-SNAPSHOT</version>
</dependency>
Add repository element:
<repositories>
<repository>
<id>sonatype-nexus-snapshots</id>
<snapshots>
<enabled>true</enabled>
</snapshots>
<url>https://oss.sonatype.org/content/repositories/snapshots/</url>
</repository>
</repositories>