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Fix Shell Script Run via SSH Hanging (Jenkins)
source link: https://blog.jakubholy.net/2015/02/17/fix-shell-script-run-via-ssh-hanging-jenkins/
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Fix Shell Script Run via SSH Hanging (Jenkins)
February 17, 2015
There is an important difference between running a script manually (
So if your shell scripts starts any background job, make sure to redirect all its output to somewhere:
This has bitten me when trying to deploy an application from the Jenkins CI using SSH and a shell script.
References: http://www.snailbook.com/faq/background-jobs.auto.html
ssh machine; machine$ ./script.sh) and running it via ssh (ssh machine < script.sh): in the letter case the connection will not close when the script finishes but will stay open until stdout/stderr are closed or a timeout occurs. In Jenkins it will therefore seem as if the script hangs.So if your shell scripts starts any background job, make sure to redirect all its output to somewhere:
nohup some-background-task &> /dev/null # No space between & and > !
This has bitten me when trying to deploy an application from the Jenkins CI using SSH and a shell script.
References: http://www.snailbook.com/faq/background-jobs.auto.html
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