Jenkins agents going off-line with the following error during build.
Agent went offline during the build
Build step ‘Execute shell’ marked build as failure
FATAL: Remote call on JNLP4-connect connection from 100.122.0.2/100.122.0.2:47648 failed. The channel is closing down or has closed down
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:721)
at jenkins.util.ContextResettingExecutorService$1.run(ContextResettingExecutorService.java:28)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
Caused: hudson.remoting.ChannelClosedException: Remote call on JNLP4-connect connection from 100.122.0.2/100.122.0.2:47648 failed. The channel is closing down or has closed down
at hudson.remoting.Channel.call(Channel.java:901)
at hudson.Launcher$RemoteLauncher.kill(Launcher.java:1079)
at hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:510)
at hudson.model.Run.execute(Run.java:1724)
at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:43)
at hudson.model.ResourceController.execute(ResourceController.java:97)
at hudson.model.Executor.run(Executor.java:421)
Finished: FAILURE
currently enough space and commute to proceed with the build and the controllers version matching with the agents.