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Bug
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Resolution: Unresolved
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Minor
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None
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Centos 7, 64bit
jenkins-2.7.4-1.1.noarch (rpm) LTS
Symptom
If you run a job via the cli with the "-s" switch and the job does not print any output for longer then 5 seconds, the connection dies with "java.io.IOException: Unexpected termination of the channel"
Note: hudson.diyChunking is needed for https://issues.jenkins-ci.org/browse/JENKINS-35197
/usr/bin/java -Dhudson.diyChunking=false -jar /usr/lib/jenkins/jenkins-cli.jar -s http://127.0.0.1:8080 -i /root/kenkins_ssh_key build -s JOB
...
[log] Sep 22, 2016 9:15:40 AM hudson.remoting.SynchronousCommandTransport$ReaderThread run
[log] SEVERE: I/O error in channel Chunked connection to http://127.0.0.1:8080/cli
[log] java.io.IOException: Unexpected termination of the channel
[log] at hudson.remoting.SynchronousCommandTransport$ReaderThread.run(SynchronousCommandTransport.java:73)
[log] Caused by: java.io.EOFException
[log] at java.io.ObjectInputStream$PeekInputStream.readFully(ObjectInputStream.java:2353)
[log] at java.io.ObjectInputStream$BlockDataInputStream.readShort(ObjectInputStream.java:2822)
[log] at java.io.ObjectInputStream.readStreamH
...
Problem
The Jenkins built in Winstone-Jetty server uses a keep alive of 11,25 seconds (see https://github.com/jenkinsci/jenkins/blob/master/cli/src/main/java/hudson/cli/CLI.java#L156), while the jetty is configured with a 5 second timeout (see here https://github.com/jenkinsci/winstone/blob/master/README.md#command-line-options).
Workaround
Specify --httpKeepAliveTimeout=15000 to start of Jenkins
- relates to
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JENKINS-41745 Remoting-free CLI
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- Resolved
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JENKINS-42513 Increase default keep-alive timeouts
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- Open
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