Blocking a jenkins task until all downstream tasks complete?

Question

Is there any way in jenkins to block a given task on all its downstream tasks? I have a series of functional test phases, and each needs to run against a server after deployment. The server should not be updated while tests are running, however.

So I have jobs:

A -> B -> C

I need A to block until C completes.

How can I do this?

Answer 1

As Jason mentioned the setting is under the "Advanced Project Options" section and looks like the following:

Answer 2

Take a look at the Advanced Project Options, "Block build when downstream project is building" option for project A. I believe that will prevent multiple instances of A running until all downstream projects (ie, B and C) have completed.