Zipkin not showing traces

[deepaksorthiya]

I started applications using (Windows 11 OS)

./mvnw clean install -P buildDocker -Dcontainer.platform="linux/arm64"
docker compose up

logs are coming fine but zipkin not showing any traces

[arey]

Hi @deepaksorthiya I would like to know if this issue is related to the Docker packaging or if we have the same issue without Docker. Did you have try to start the webapp outside Docker?

[taha-adel]

@deepaksorthiya

It's not showing up in Zipkin because services having issues reaching the zipkin endpoint.

ns due to ResourceAccessException(I/O error on POST request for "http://localhost:9411/api/v2/spans": Connect to http://localhost:9411 [localhost/127.0.0.1, localhost/0:0:0:0:0:0:0:1] failed: Connection refused)

org.springframework.web.client.ResourceAccessException: I/O error on POST request for "http://localhost:9411/api/v2/spans": Connect to http://localhost:9411 [localhost/127.0.0.1, localhost/0:0:0:0:0:0:0:1] failed: Connection refused
        at org.springframework.web.client.RestTemplate.createResourceAccessException(RestTemplate.java:905)
        at org.springframework.web.client.RestTemplate.doExecute(RestTemplate.java:885)
        at org.springframework.web.client.RestTemplate.execute(RestTemplate.java:781)
        at org.springframework.web.client.RestTemplate.exchange(RestTemplate.java:663)
        at org.springframework.boot.actuate.autoconfigure.tracing.zipkin.ZipkinRestTemplateSender$RestTemplateHttpPostCall.doExecute(ZipkinRestTemplateSender.java:68)
        at org.springframework.boot.actuate.autoconfigure.tracing.zipkin.ZipkinRestTemplateSender$RestTemplateHttpPostCall.doExecute(ZipkinRestTemplateSender.java:48)
        at zipkin2.Call$Base.execute(Call.java:391)
        at zipkin2.reporter.AsyncReporter$BoundedAsyncReporter.flush(AsyncReporter.java:299)
        at zipkin2.reporter.AsyncReporter$Flusher.run(AsyncReporter.java:378)
        at java.base/java.lang.Thread.run(Thread.java:840)
Caused by: org.apache.hc.client5.http.HttpHostConnectException: Connect to http://localhost:9411 [localhost/127.0.0.1, localhost/0:0:0:0:0:0:0:1] failed: Connection refused
        at java.base/sun.nio.ch.Net.pollConnect(Native Method)
        at java.base/sun.nio.ch.Net.pollConnectNow(Net.java:672)
        at java.base/sun.nio.ch.NioSocketImpl.timedFinishConnect(NioSocketImpl.java:547)
        at java.base/sun.nio.ch.NioSocketImpl.connect(NioSocketImpl.java:602)
        at java.base/java.net.SocksSocketImpl.connect(SocksSocketImpl.java:327)
        at java.base/java.net.Socket.connect(Socket.java:633)
        at org.apache.hc.client5.http.socket.PlainConnectionSocketFactory.lambda$connectSocket$0(PlainConnectionSocketFactory.java:85)
        at java.base/java.security.AccessController.doPrivileged(AccessController.java:569)
        at org.apache.hc.client5.http.socket.PlainConnectionSocketFactory.connectSocket(PlainConnectionSocketFactory.java:84)
        at org.apache.hc.client5.http.socket.ConnectionSocketFactory.connectSocket(ConnectionSocketFactory.java:113)
        at org.apache.hc.client5.http.impl.io.DefaultHttpClientConnectionOperator.connect(DefaultHttpClientConnectionOperator.java:181)
        at org.apache.hc.client5.http.impl.io.PoolingHttpClientConnectionManager.connect(PoolingHttpClientConnectionManager.java:447)
        at org.apache.hc.client5.http.impl.classic.InternalExecRuntime.connectEndpoint(InternalExecRuntime.java:162)
        at org.apache.hc.client5.http.impl.classic.InternalExecRuntime.connectEndpoint(InternalExecRuntime.java:172)
        at org.apache.hc.client5.http.impl.classic.ConnectExec.execute(ConnectExec.java:142)
        at org.apache.hc.client5.http.impl.classic.ExecChainElement.execute(ExecChainElement.java:51)
        at org.apache.hc.client5.http.impl.classic.ProtocolExec.execute(ProtocolExec.java:192)
        at org.apache.hc.client5.http.impl.classic.ExecChainElement.execute(ExecChainElement.java:51)
        at org.apache.hc.client5.http.impl.classic.HttpRequestRetryExec.execute(HttpRequestRetryExec.java:96)
        at org.apache.hc.client5.http.impl.classic.ExecChainElement.execute(ExecChainElement.java:51)
        at org.apache.hc.client5.http.impl.classic.ContentCompressionExec.execute(ContentCompressionExec.java:152)
        at org.apache.hc.client5.http.impl.classic.ExecChainElement.execute(ExecChainElement.java:51)
        at org.apache.hc.client5.http.impl.classic.RedirectExec.execute(RedirectExec.java:115)
        at org.apache.hc.client5.http.impl.classic.ExecChainElement.execute(ExecChainElement.java:51)
        at org.apache.hc.client5.http.impl.classic.InternalHttpClient.doExecute(InternalHttpClient.java:170)
        at org.apache.hc.client5.http.impl.classic.CloseableHttpClient.execute(CloseableHttpClient.java:87)
        at org.apache.hc.client5.http.impl.classic.CloseableHttpClient.execute(CloseableHttpClient.java:55)
        at org.apache.hc.client5.http.classic.HttpClient.executeOpen(HttpClient.java:183)
        at org.springframework.http.client.HttpComponentsClientHttpRequest.executeInternal(HttpComponentsClientHttpRequest.java:95)
        at org.springframework.http.client.AbstractStreamingClientHttpRequest.executeInternal(AbstractStreamingClientHttpRequest.java:70)
        at org.springframework.http.client.AbstractClientHttpRequest.execute(AbstractClientHttpRequest.java:66)
        at org.springframework.web.client.RestTemplate.doExecute(RestTemplate.java:879)
        ... 8 common frames omitted

@arey How we can let services know the correct zipkin endpoint, which should be tracing-server:9411 not localhost:9411

[arey]

@taha-adel the microservice server lookup the zipkin host to the Discovery Server. When the docker spring profile is active, the Discovery Server should return http://tracing-server:9411 as baseUrl.

See https://github.com/spring-petclinic/spring-petclinic-microservices-config/blob/main/customers-service.yml#L16 :

  zipkin:
    baseUrl: http://tracing-server:9411