[JIRA] (JENKINS-60535) Getting IOException when Jenkins is trying to connect to Slaves in Azure Cloud

[adugar@apttus.com (JIRA)]

anil dugar created an issue

Jenkins / JENKINS-60535 Getting IOException when Jenkins is trying to connect to Slaves in Azure Cloud Issue Type: Bug Assignee: Azure DevOps Attachments: azourecloudexception.png, EOFException in Job, Issue discussed with microsoft.txt, list of all failures.png Components: azure-vm-agents-plugin Created: 2019-12-19 05:51 Environment: Jenkins Version : 2.190.1 Priority: Major Reporter: anil dugar While provisioning from jenkins master we are getting exception: AzureCloudException java.io.IOException: Agent failed to connect And below is the exception that we are getting : AzureCloudException java.io.IOException: Agent failed to connect, even though the launcher didn't report it. See the log output for details. at hudson.slaves.SlaveComputer$1.call(SlaveComputer.java:321) Caused: java.util.concurrent.ExecutionException at java.util.concurrent.FutureTask.report(FutureTask.java:122) at java.util.concurrent.FutureTask.get(FutureTask.java:192) at com.microsoft.azure.vmagent.AzureVMCloud$2.call(AzureVMCloud.java:856) Caused: com.microsoft.azure.vmagent.exceptions.AzureCloudException at com.microsoft.azure.vmagent.exceptions.AzureCloudException.create(AzureCloudException.java:54) at com.microsoft.azure.vmagent.exceptions.AzureCloudException.create(AzureCloudException.java:33) at com.microsoft.azure.vmagent.AzureVMCloud$2.call(AzureVMCloud.java:885) at com.microsoft.azure.vmagent.AzureVMCloud$2.call(AzureVMCloud.java:808) at jenkins.util.ContextResettingExecutorService$2.call(ContextResettingExecutorService.java:46) at jenkins.security.ImpersonatingExecutorService$2.call(ImpersonatingExecutorService.java:71) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at java.lang.Thread.run(Thread.java:748) Add Comment

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[jieshe@microsoft.com (JIRA)]

Jie Shen assigned an issue to Jie Shen

Jenkins / JENKINS-60535 Getting IOException when Jenkins is trying to connect to Slaves in Azure Cloud

Change By: Jie Shen Assignee: Azure DevOps Jie Shen

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[jieshe@microsoft.com (JIRA)]

Jie Shen commented on JENKINS-60535

Re: Getting IOException when Jenkins is trying to connect to Slaves in Azure Cloud It seems to be a common remoting issue in Jenkins. Refer to https://wiki.jenkins.io/display/JENKINS/Remoting+issue .

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[adugar@apttus.com (JIRA)]

anil dugar updated an issue

Jenkins / JENKINS-60535

Getting IOException when Jenkins is trying to connect to Slaves in Azure Cloud

Change By: anil dugar Attachment: Jenkins System Log_files.zip

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[adugar@apttus.com (JIRA)]

anil dugar commented on JENKINS-60535

Re: Getting IOException when Jenkins is trying to connect to Slaves in Azure Cloud Attaching jenkins system logs for your reference

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[jieshe@microsoft.com (JIRA)]

Jie Shen commented on JENKINS-60535

Re: Getting IOException when Jenkins is trying to connect to Slaves in Azure Cloud

According to the log, it seems to be caused by firewall or something like that. Do you have ever tried other windows images, such as the default one?

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[adugar@apttus.com (JIRA)]

anil dugar commented on JENKINS-60535

Re: Getting IOException when Jenkins is trying to connect to Slaves in Azure Cloud

Sometimes the jobs fail and sometimes they succeed, which means the issue is reported intermittently, so i dont think firewall would be an issue. and if at firewall would be causing the problem, the jobs should fail everytime which is not the case.

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[jieshe@microsoft.com (JIRA)]

Jie Shen commented on JENKINS-60535

Re: Getting IOException when Jenkins is trying to connect to Slaves in Azure Cloud

anil dugar Temporarily the logic for SSH launch will only try once. If it fails to connect, it will directly throw exceptions like what you get. So have you tried the JNLP launch method? And I will check whether retry logic will make things better for SSH.

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[jieshe@microsoft.com (JIRA)]

Jie Shen commented on JENKINS-60535

Re: Getting IOException when Jenkins is trying to connect to Slaves in Azure Cloud

Version 1.4.0 has been released with the SSH connect retry feature.

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[adugar@apttus.com (JIRA)]

anil dugar commented on JENKINS-60535

Re: Getting IOException when Jenkins is trying to connect to Slaves in Azure Cloud

Thanks Jie, we are also working on an optimistic solution of having a retry logic, hopefully that will work and also we will have a loot at the above mentioned feature.

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