Problems using jenkins-cli quiet-down -block

[Joe]

Hi all,

I want to run some scripts externally that require that all jobs are stopped.

I expected the following command to stop new jobs being started, and only return once all the jobs in the queue have finished (or reached the end of a stage for pipeline and paused):

java -jar jenkins-cli.jar -s IP quiet-down -block

The command does stop new jobs from been started and shows a red banner on the web interface, but the command returns straight away, even when a job is still running.

Have I misunderstood the "block" option?

At the end of the script I was then planning to use: 

java -jar jenkins-cli.jar -s IP cancel-quiet-down

This always removes the red banner from the web UI but sometime the job queue does not restart.

Using Jenkins version 2.19.4 on Windows 7 running as a service.

Is there another way to achieve this?

[Joe]

After some more tests it looks like the problem affects pipeline jobs but not freestyle jobs. 

I guess this is a bug so have raised a jira https://issues.jenkins-ci.org/browse/JENKINS-41085