You can query the state of a slave through the remote API. You can learn about the API through the URL:
http://localhost:8080//computer/api Assuming you have a Jenkins server on localhost port 8080. I think the level of detail you need is in "depth=1". You can use the command line interface to perform an offline-node to take the node offline, and can perform an online-node command as well. Command line interface is described at https://wiki.jenkins-ci.org/display/JENKINS/Jenkins+CLI Mark Waite >________________________________ > From: Lars Nordin <lnor...@internap.com> >To: "jenkinsci-users@googlegroups.com" <jenkinsci-users@googlegroups.com> >Sent: Monday, February 27, 2012 1:38 PM >Subject: possible to control build slave using remote API? > > >I’m wondering if it possible to control a build slave using remote API? >I’m wanting to check if a node is busy, mark it temporarily off line, upgrade >the system and then mark it back online. > >
