docker plugin agent getting disconnected after running for some time in new jenkins

One Program

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Mar 5, 2025, 5:59:16 AMMar 5

to Jenkins Users

Hi all,

We have upgraded our Jenkins instance and installed all the required plugins, including the Docker plugin.

After setting up Docker Cloud and configuring the template, we observed that new agents created from the Docker plugin are getting terminated after running for 20-25 minutes.

We would appreciate any help in resolving this issue.

Error details:

Also: hudson.model.Computer$TerminationRequest: Termination requested at Wed Mar 05 04:28:03 IST 2025 by Thread[DockerContainerWatchdog Asynchronous Periodic Work thread,5,main] [id=31721] at hudson.model.Computer.recordTermination(Computer.java:242) at jenkins.model.Nodes$5.run(Nodes.java:283) at hudson.model.Queue._withLock(Queue.java:1409) at hudson.model.Queue.withLock(Queue.java:1283) at jenkins.model.Nodes.removeNode(Nodes.java:278) at jenkins.model.Jenkins.removeNode(Jenkins.java:2257) at PluginClassLoader for docker-plugin//com.nirima.jenkins.plugins.docker.DockerContainerWatchdog.removeNode(DockerContainerWatchdog.java:97) at PluginClassLoader for docker-plugin//com.nirima.jenkins.plugins.docker.DockerContainerWatchdog.cleanUpSuperfluousComputer(DockerContainerWatchdog.java:564) at PluginClassLoader for docker-plugin//com.nirima.jenkins.plugins.docker.DockerContainerWatchdog.execute(DockerContainerWatchdog.java:158) at hudson.model.AsyncPeriodicWork.lambda$doRun$0(AsyncPeriodicWork.java:102) Also: hudson.model.Computer$TerminationRequest: Termination requested at Wed Mar 05 04:28:03 IST 2025 by Thread[DockerContainerWatchdog Asynchronous Periodic Work thread,5,main] [id=31721] at hudson.model.Computer.recordTermination(Computer.java:242) at hudson.model.Computer.disconnect(Computer.java:512) at hudson.slaves.SlaveComputer.disconnect(SlaveComputer.java:816) at jenkins.model.Nodes$5.run(Nodes.java:284) at hudson.model.Queue._withLock(Queue.java:1409) at hudson.model.Queue.withLock(Queue.java:1283) at jenkins.model.Nodes.removeNode(Nodes.java:278) at jenkins.model.Jenkins.removeNode(Jenkins.java:2257) at PluginClassLoader for docker-plugin//com.nirima.jenkins.plugins.docker.DockerContainerWatchdog.removeNode(DockerContainerWatchdog.java:97) at PluginClassLoader for docker-plugin//com.nirima.jenkins.plugins.docker.DockerContainerWatchdog.cleanUpSuperfluousComputer(DockerContainerWatchdog.java:564) at PluginClassLoader for docker-plugin//com.nirima.jenkins.plugins.docker.DockerContainerWatchdog.execute(DockerContainerWatchdog.java:158) at hudson.model.AsyncPeriodicWork.lambda$doRun$0(AsyncPeriodicWork.java:102)

Any insights or suggestions would be highly appreciated.

Björn Pedersen

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Mar 5, 2025, 6:18:11 AMMar 5

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This normal behaviour, the docker agents are on-demand and if not used for some time, they get cleaned up. They should spin up again if a job request them.

One Program

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Mar 5, 2025, 7:31:24 AMMar 5

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Job are still running, however the on demand docker cloud agents are terminated. I posted the error, which I received as job aborted due to agent disconnected in the middle.

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One Program

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Mar 6, 2025, 2:04:35 AMMar 6

to Jenkins Users

Any information on this would be very useful

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