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Bug
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Resolution: Not A Defect
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Minor
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None
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Jenkins 2.401.3
We are executing some groovy scripts via the scriptText API, we noticed that if the script takes longer than 5 mins to return a result we get a 504 Gateway Time-out error.
Poking around online and in the mailing lists it appears the following options for winstone deal with setting the http/s idle timeout values:
https://github.com/jenkinsci/winstone
--httpKeepAliveTimeout = how long idle HTTP keep-alive connections are kept around (in ms; default 30000)? --httpsKeepAliveTimeout = how long idle HTTPS keep-alive connections are kept around (in ms; default 30000)?
They also mention a default of 30000ms which corresponds to the 5 min timeout we are experiencing. I've tested by adding these options to our JENKINS_OPTS and setting a 10 min timeout but still the same 504 error is seen after 5 mins. I've also tested shorter timeouts of 30 seconds and 2mins, but I do not get the 504 error any sooner.
Add options:
export JENKINS_OPTS=--logfile=/var/log/jenkins/jenkins.log --webroot=/var/cache/jenkins/war --httpPort=8080 --httpsKeepAliveTimeout=600000 --httpKeepAliveTimeout=600000
Confirm options:
/ # jps -lvm 9077 jdk.jcmd/sun.tools.jps.Jps -lvm -Dapplication.home=/opt/java/openjdk -Xms8m -Djdk.module.main=jdk.jcmd 7 /usr/share/jenkins/jenkins.war --logfile=/var/log/jenkins/jenkins.log --webroot=/var/cache/jenkins/war --httpPort=8080 --httpsKeepAliveTimeout=600000 --httpKeepAliveTimeout=600000 -Duser.home=/var/jenkins_home -Djenkins.install.runSetupWizard=false ...
The following curl commands can be used to reproduce the issue:
1. Create a groovy script which sleeps for >5mins:
sleep(360000)
println("slept 6mins")
2. Run the groovy script using /scriptText API or simply in the /script web console.
curl -b cookies.txt -u "user:pass" -X POST -H "$crumb" --data-urlencode "script=$(< ./sleepTest.groovy)" https://jenkinsURL/scriptText
3. Returns below after 5 mins.
<html> <head><title>504 Gateway Time-out</title></head> <body> <center><h1>504 Gateway Time-out</h1></center> </body> </html>