How to stop an unstoppable zombie job on Jenkins without restarting the server?

Question

Our Jenkins server has a job that has been running for three days, but is not doing anything. Clicking the little X in the corner does nothing, and the console output log do

Answer 1

Using the Script console at https://my-jenkins/script

import hudson.model.Job
import org.jenkinsci.plugins.workflow.job.WorkflowRun

Collection jobs = Jenkins.instance.getItem('My-Folder').getAllJobs()
for (int i = 0; i < jobs.size(); i++) {
  def job = jobs[i]
  for (int j = 0; j < job.builds.size(); j++) {
    WorkflowRun build = job.builds[j]
    if (build.isBuilding()) {
      println("Stopping $job ${build.number}")
      build.setResult(Result.FAILURE)
    }
  }
}