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Bug
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Resolution: Unresolved
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Critical
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None
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Server Ubuntu 18.04.3 LTS
Jenkins ver. 2.176.3
Plugins
Amazon EC2 plugin 1.45
SSH Slaves 1.30.1
Slaves:
Hello,
After upgrading jenkins from 2.164.3, to 2.176.3 and EC2 plugin to 1.45 EC2 slaves are disconnecting (intermittent disconnects) in the middle of builds with an EOFException.
java.io.EOFException at java.io.ObjectInputStream$PeekInputStream.readFully(ObjectInputStream.java:2681) at java.io.ObjectInputStream$BlockDataInputStream.readShort(ObjectInputStream.java:3156) at java.io.ObjectInputStream.readStreamHeader(ObjectInputStream.java:862) at java.io.ObjectInputStream.<init>(ObjectInputStream.java:358) at hudson.remoting.ObjectInputStreamEx.<init>(ObjectInputStreamEx.java:49) at hudson.remoting.Command.readFrom(Command.java:140) at hudson.remoting.Command.readFrom(Command.java:126) at hudson.remoting.AbstractSynchronousByteArrayCommandTransport.read(AbstractSynchronousByteArrayCommandTransport.java:36) at hudson.remoting.SynchronousCommandTransport$ReaderThread.run(SynchronousCommandTransport.java:63) Caused: java.io.IOException: Unexpected termination of the channel at hudson.remoting.SynchronousCommandTransport$ReaderThread.run(SynchronousCommandTransport.
I tried to make the rollback through the interface, but the problem continued.
I have the same issue, might want to check the logs of your master Jenkins, in mine I have:
So nodes are automatically disconnected after an idle timeout, I've raised a similar issue here: https://issues.jenkins-ci.org/browse/JENKINS-59579