How can I know how long a Jenkins job has been in the wait queue after the job is finished?

Question

For the statistics, I want to see how long the job is in the waiting queue, therefore I can tune the system to make the job is run in time.

If the job is just in queue, it is possible to find in waiting queue in front page see How can I tell how long a Jenkins job has been in the wait queue?

Or the http://<jenkins_url>/queue/api/json?pretty=true

Is it possible to check somewhere to get "Time waiting in queue" for the specific job after the job is finished ?

Will be nice if it can be gotten in public jenkins API.

Answer 1

// got answer from colleague

It can be achieved by installing Jenkins Metrics Plugin, after it is installed, in the build result page, you will see

Jenkins REST API: Then you can get wait time in queue from http://localhost:8080/job/demo/1/api/json?pretty=true&depth=2 . queuingDurationMillis is the data I wanted.

"actions" : [
{
  "queuingDurationMillis" : 33,
  "totalDurationMillis" : 3067
}
],

Groovy script: Also we can get this data in groovy via internal data, check below code in Jenkins Script console http://localhost:8080/script

job = hudson.model.Hudson.instance.getItem("demo")
build = job.getLastBuild()
action = build.getAction(jenkins.metrics.impl.TimeInQueueAction.class)
println action.getQueuingDurationMillis()

You can see the demo using docker by running below and open in browser for demo job

docker run -it -p 8080:8080 larrycai/jenkins-metrics