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Bug
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Resolution: Not A Defect
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Blocker
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None
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Jenkins master version: 2.190.1
Kubernetes Plugin: 1.19.3
It also happened before the upgrade in
Jenkins: 2.176.3
K8S plugin: 1.19.0
It happens frequently not something constant, which makes it very hard to debug.
This is my podTemplate:
podTemplate(containers: [ containerTemplate( name: 'build', image: 'my_builder:latest', command: 'cat', ttyEnabled: true, workingDir: '/mnt/jenkins' ) ], volumes: [ hostPathVolume(mountPath: '/var/run/docker.sock', hostPath: '/var/run/docker.sock'), hostPathVolume(mountPath: '/mnt/jenkins', hostPath: '/mnt/jenkins') ], yaml: """ spec: containers: - name: build resources: requests: cpu: "10" memory: "10Gi" securityContext: fsGroup: 995 """ ) { node(POD_LABEL) { stage("Checkout") { } // more stages } }
This is the log from the pod:
Inbound agent connected from IP/IP Waiting for agent to connect (0/100): my_branch Remoting version: 3.35 This is a Unix agent Waiting for agent to connect (1/100): my_branch Agent successfully connected and online ERROR: Connection terminated java.nio.channels.ClosedChannelException at org.jenkinsci.remoting.protocol.NetworkLayer.onRecvClosed(NetworkLayer.java:154) at org.jenkinsci.remoting.protocol.impl.NIONetworkLayer.ready(NIONetworkLayer.java:142) at org.jenkinsci.remoting.protocol.IOHub$OnReady.run(IOHub.java:795) at jenkins.util.ContextResettingExecutorService$1.run(ContextResettingExecutorService.java:28) at jenkins.security.ImpersonatingExecutorService$1.run(ImpersonatingExecutorService.java:59) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at java.lang.Thread.run(Thread.java:748)
Logs from Jenkins "cat /var/log/jenkins/jenkins.log":
2019-10-08 14:40:48.171+0000 [id=287] WARNING o.c.j.p.k.KubernetesLauncher#launch: Error in provisioning; agent=KubernetesSlave name: branch_name, template=PodTemplate{, name='pod_name', namespace='default', label='label_name', nodeUsageMode=EXCLUSIVE, volumes=[HostPathVolume [mountPath=/var/run/docker.sock, hostPath=/var/run/docker.sock], HostPathVolume [mountPath=/mnt/jenkins, hostPath=/mnt/jenkins]], containers=[ContainerTemplate{name='build', image='my_builder', workingDir='/mnt/jenkins', command='cat', ttyEnabled=true, envVars=[KeyValueEnvVar [getValue()=deploy/.dazelrc, getKey()=RC_FILE]]}], annotations=[org.csanchez.jenkins.plugins.kubernetes.PodAnnotation@aab9c821]} io.fabric8.kubernetes.client.KubernetesClientTimeoutException: Timed out waiting for [100000] milliseconds for [Pod] with name:[branch_name] in namespace [default]. at org.csanchez.jenkins.plugins.kubernetes.AllContainersRunningPodWatcher.await(AllContainersRunningPodWatcher.java:130) at org.csanchez.jenkins.plugins.kubernetes.KubernetesLauncher.launch(KubernetesLauncher.java:134) at hudson.slaves.SlaveComputer$1.call(SlaveComputer.java:297) 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)