Lost contact: There was a problem registering with the go server, String index out of range: -4

[sarahb...@gmail.com]

Hi @all,

I am having a problem where any newly created GoAgents have a status of 'lost contact'. At first they have the status 'building' when they are newly created but this
quickly changes to 'lost contact'. The agents are configured to autoregister and register successfully. Restarting the GoAgent service does not affect the status.

The GoAgent logs show the following:

2016-09-23 12:59:13,497 [loopThread] INFO  go.agent.service.SslInfrastructureService:85 - [Agent Registration] Starting to register agent
2016-09-23 12:59:13,532 [loopThread] ERROR go.agent.service.SslInfrastructureService:104 - [Agent Registration] There was a problem registering with the go server.
java.lang.StringIndexOutOfBoundsException: String index out of range: -4
    at java.lang.String.charAt(String.java:658)
    at org.bouncycastle.util.encoders.Base64Encoder.decode(Unknown Source)
    at org.bouncycastle.util.encoders.Base64.decode(Unknown Source)
    at org.bouncycastle.util.io.pem.PemReader.loadObject(Unknown Source)
    at org.bouncycastle.util.io.pem.PemReader.readPemObject(Unknown Source)
    at com.thoughtworks.go.security.Registration.fromJson(Registration.java:43)
    at com.thoughtworks.go.agent.service.SslInfrastructureService$RemoteRegistrationRequester.readResponse(SslInfrastructureService.java:186)
    at com.thoughtworks.go.agent.service.SslInfrastructureService$RemoteRegistrationRequester.requestRegistration(SslInfrastructureService.java:178)
    at com.thoughtworks.go.agent.service.SslInfrastructureService.register(SslInfrastructureService.java:102)
    at com.thoughtworks.go.agent.service.SslInfrastructureService.registerIfNecessary(SslInfrastructureService.java:86)
    at com.thoughtworks.go.agent.AgentController.rpcLoop(AgentController.java:181)
    at com.thoughtworks.go.agent.AgentController.loop(AgentController.java:173)
    at sun.reflect.GeneratedMethodAccessor12.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.springframework.util.MethodInvoker.invoke(MethodInvoker.java:273)
    at org.springframework.scheduling.support.MethodInvokingRunnable.run(MethodInvokingRunnable.java:65)
    at org.springframework.scheduling.timer.DelegatingTimerTask.run(DelegatingTimerTask.java:70)
    at java.util.TimerThread.mainLoop(Timer.java:555)
    at java.util.TimerThread.run(Timer.java:505)
2016-09-23 12:59:13,532 [loopThread] ERROR thoughtworks.go.agent.AgentController:192 - [Agent Loop] Error occurred during loop:
java.lang.StringIndexOutOfBoundsException: String index out of range: -4
    at java.lang.String.charAt(String.java:658)
    at org.bouncycastle.util.encoders.Base64Encoder.decode(Unknown Source)
    at org.bouncycastle.util.encoders.Base64.decode(Unknown Source)
    at org.bouncycastle.util.io.pem.PemReader.loadObject(Unknown Source)
    at org.bouncycastle.util.io.pem.PemReader.readPemObject(Unknown Source)
    at com.thoughtworks.go.security.Registration.fromJson(Registration.java:43)
    at com.thoughtworks.go.agent.service.SslInfrastructureService$RemoteRegistrationRequester.readResponse(SslInfrastructureService.java:186)
    at com.thoughtworks.go.agent.service.SslInfrastructureService$RemoteRegistrationRequester.requestRegistration(SslInfrastructureService.java:178)
    at com.thoughtworks.go.agent.service.SslInfrastructureService.register(SslInfrastructureService.java:102)
    at com.thoughtworks.go.agent.service.SslInfrastructureService.registerIfNecessary(SslInfrastructureService.java:86)
    at com.thoughtworks.go.agent.AgentController.rpcLoop(AgentController.java:181)
    at com.thoughtworks.go.agent.AgentController.loop(AgentController.java:173)
    at sun.reflect.GeneratedMethodAccessor12.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.springframework.util.MethodInvoker.invoke(MethodInvoker.java:273)
    at org.springframework.scheduling.support.MethodInvokingRunnable.run(MethodInvokingRunnable.java:65)
    at org.springframework.scheduling.timer.DelegatingTimerTask.run(DelegatingTimerTask.java:70)
    at java.util.TimerThread.mainLoop(Timer.java:555)
    at java.util.TimerThread.run(Timer.java:505)

I have read https://groups.google.com/forum/#!msg/go-cd/zLqeECge1t4/RSrFb3xYAwAJ but I don't think the issue is the same as mine is not stuck at the pending state, and also https://groups.google.com/forum/#!topic/go-cd/Q0fxHsuNtag but
I am not using a VM template.

I am using Go Version: 16.8.0 on CentOS7

Thanks

Sarah

[Aravind SV]

Hello Sarah,

Can you please try reproducing this issue on the newly released 16.10.0? It should be fixed on it. If not, someone will take a closer look.

Thanks,

Aravind

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[sarahb...@gmail.com]

Hi Aravind

The upgrade to 16.10.0 fixed the problem.

Many thanks

Sarah

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