How to change the jenkins `/tmp` dir location?

Question

How can I change the location where jenkins store temp data in its slaves. Currently, it shuts down the connection to my slaves because it complains about the following

Disk space is too low. Only 0.119GB left on /tmp. 

I want to move the tmpdir location to something like /var/tmp/ instead of /tmp. How can I do that?

Answer 1

Just add "-Djava.io.tmpdir=/path/to/tmp" to the java command line options (you don't need any extra service wrapper).

Depending on your installation there might be an existing startup script and/or config file this can go into. On my fedora system, I can add the option to the /etc/sysconfig/jenkins file:

## Type:        string ## Default:     "-Djava.awt.headless=true" ## ServiceRestart: jenkins # # Options to pass to java when running Jenkins. # JENKINS_JAVA_OPTIONS="-Djava.awt.headless=true -Djava.io.tmpdir=/var/tmp" 

Answer 2

On a debian/ubuntu machine, add the following to the file /etc/default/jenkins:

# use a different tmpdir for jenkins JAVA_ARGS="$JAVA_ARGS -Djava.io.tmpdir=/var/tmp/"