Re: PR build crashed with error message "The channel is closing down or has closed down"

[Mark Waite]

Thanks for the suggestion.  One of the ways that we reduced the impact of
the disconnects was by clicking the "Relaunch agent" button every few
minutes for agents that are disconnected.  We implemented that after
observing that many times the agent will reconnect when the relaunch agent
button is clicked by an administrator.  We can certainly double check that
there is no async reboot of the agent, but I don't expect there to be one.

On Sat, Aug 8, 2020 at 5:28 AM Steve Carter  wrote:

> I've experienced this error in my corporate network where the agent was
> just so busy with the Jenkins job that it didn't respond to monitoring and
> monitoring rebooted the machine. I don't know aws, but if it's easy to
> check it could be worth ruling out
>
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>

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Re: PR build crashed with error message "The channel is closing down or has closed down"

[Steve Carter]

I've experienced this error in my corporate network where the agent was just so 
busy with the Jenkins job that it didn't respond to monitoring and monitoring 
rebooted the machine. I don't know aws, but if it's easy to check it could be 
worth ruling out

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Re: PR build crashed with error message "The channel is closing down or has closed down"

[Mark Waite]

Unfortunately, there is not much that you can do to diagnose the issue.
There is some issue that causes the agents on AWS EC2 to be disconnected
from the master on Azure.  We don't know if the issue is in the EC2 plugin,
the communications between the Azure Jenkins master and AWS EC2 agent, the
remoting code that carries the data, or something completely outside those
items.

I've started a new copy of the job in hopes the connection between agent
and master will last long enough to complete the job.

Mark Waite

On Fri, Aug 7, 2020 at 3:22 PM Mads Mohr Christensen 
wrote:

> Thanks Gavin, great tip!
>
> Unfortunately it failed again with the same error message:
>
> https://ci.jenkins.io/blue/organizations/jenkins/Plugins%2Fadoptopenjdk-plugin/detail/PR-12/2/pipeline/68
>
> At time of writing this mail the job is still running but it will most
> likely timeout in an hour.
>
> I can't remember seeing this error before and I really don't know how to
> deal with it. Does anyone have a tip on how I can debug this?
>
> On Fri, Aug 7, 2020 at 7:36 PM 'Gavin Mogan' via Jenkins Developers <
> jenkinsci-dev@googlegroups.com> wrote:
>
>> Easiest way as a non admin:
>>
>> Close the PR, wait a couple seconds, and reopen it.
>>
>> On Fri, Aug 7, 2020 at 10:28 AM Mads Mohr Christensen 
>> wrote:
>>
>>> I've opened a PR which just includes a better error message.
>>> The build completed very fast for Linux JDK 8+11 but for Windows it
>>> looks like the build has crashed.
>>>
>>> Error message:
>>> Cannot contact EC2 (aws) - Windows 2019 (i-003aa1d3772d37d10):
>>> hudson.remoting.ChannelClosedException: Channel
>>> "hudson.remoting.Channel@2f7406ec:EC2 (aws) - Windows 2019
>>> (i-003aa1d3772d37d10)": Remote call on EC2 (aws) - Windows 2019
>>> (i-003aa1d3772d37d10) failed. The channel is closing down or has closed down
>>>
>>>
>>> https://ci.jenkins.io/blue/organizations/jenkins/Plugins%2Fadoptopenjdk-plugin/detail/PR-12/1/pipeline/24/
>>>
>>> Is there a way to cancel a running job and to start it again?
>>>
>>> --
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>>> Groups "Jenkins Developers" group.
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>>> 
>>> .
>>>
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>> 
>> .
>>
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> 
> .
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Re: PR build crashed with error message "The channel is closing down or has closed down"

[Mads Mohr Christensen]

Thanks Gavin, great tip!

Unfortunately it failed again with the same error message:
https://ci.jenkins.io/blue/organizations/jenkins/Plugins%2Fadoptopenjdk-plugin/detail/PR-12/2/pipeline/68

At time of writing this mail the job is still running but it will most
likely timeout in an hour.

I can't remember seeing this error before and I really don't know how to
deal with it. Does anyone have a tip on how I can debug this?

On Fri, Aug 7, 2020 at 7:36 PM 'Gavin Mogan' via Jenkins Developers <
jenkinsci-dev@googlegroups.com> wrote:

> Easiest way as a non admin:
>
> Close the PR, wait a couple seconds, and reopen it.
>
> On Fri, Aug 7, 2020 at 10:28 AM Mads Mohr Christensen 
> wrote:
>
>> I've opened a PR which just includes a better error message.
>> The build completed very fast for Linux JDK 8+11 but for Windows it looks
>> like the build has crashed.
>>
>> Error message:
>> Cannot contact EC2 (aws) - Windows 2019 (i-003aa1d3772d37d10):
>> hudson.remoting.ChannelClosedException: Channel
>> "hudson.remoting.Channel@2f7406ec:EC2 (aws) - Windows 2019
>> (i-003aa1d3772d37d10)": Remote call on EC2 (aws) - Windows 2019
>> (i-003aa1d3772d37d10) failed. The channel is closing down or has closed down
>>
>>
>> https://ci.jenkins.io/blue/organizations/jenkins/Plugins%2Fadoptopenjdk-plugin/detail/PR-12/1/pipeline/24/
>>
>> Is there a way to cancel a running job and to start it again?
>>
>> --
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>> "Jenkins Developers" group.
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>> email to jenkinsci-dev+unsubscr...@googlegroups.com.
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>> 
>> .
>>
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> 
> .
>

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Re: PR build crashed with error message "The channel is closing down or has closed down"

['Gavin Mogan' via Jenkins Developers]

Easiest way as a non admin:

Close the PR, wait a couple seconds, and reopen it.

On Fri, Aug 7, 2020 at 10:28 AM Mads Mohr Christensen 
wrote:

> I've opened a PR which just includes a better error message.
> The build completed very fast for Linux JDK 8+11 but for Windows it looks
> like the build has crashed.
>
> Error message:
> Cannot contact EC2 (aws) - Windows 2019 (i-003aa1d3772d37d10):
> hudson.remoting.ChannelClosedException: Channel
> "hudson.remoting.Channel@2f7406ec:EC2 (aws) - Windows 2019
> (i-003aa1d3772d37d10)": Remote call on EC2 (aws) - Windows 2019
> (i-003aa1d3772d37d10) failed. The channel is closing down or has closed down
>
>
> https://ci.jenkins.io/blue/organizations/jenkins/Plugins%2Fadoptopenjdk-plugin/detail/PR-12/1/pipeline/24/
>
> Is there a way to cancel a running job and to start it again?
>
> --
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> "Jenkins Developers" group.
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> 
> .
>

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PR build crashed with error message "The channel is closing down or has closed down"

[Mads Mohr Christensen]

I've opened a PR which just includes a better error message.
The build completed very fast for Linux JDK 8+11 but for Windows it looks
like the build has crashed.

Error message:
Cannot contact EC2 (aws) - Windows 2019 (i-003aa1d3772d37d10):
hudson.remoting.ChannelClosedException: Channel
"hudson.remoting.Channel@2f7406ec:EC2 (aws) - Windows 2019
(i-003aa1d3772d37d10)": Remote call on EC2 (aws) - Windows 2019
(i-003aa1d3772d37d10) failed. The channel is closing down or has closed down

https://ci.jenkins.io/blue/organizations/jenkins/Plugins%2Fadoptopenjdk-plugin/detail/PR-12/1/pipeline/24/

Is there a way to cancel a running job and to start it again?

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