Steve Loughran created YARN-3528:

             Summary: Tests with 12345 as hard-coded port break jenkins
                 Key: YARN-3528
             Project: Hadoop YARN
          Issue Type: Bug
    Affects Versions: 3.0.0
         Environment: ASF Jenkins
            Reporter: Steve Loughran
            Priority: Blocker

A lot of the YARN tests have hard-coded the port 12345 for their services to 
come up on.

This makes it impossible to have scheduled or precommit tests to run 
consistently on the ASF jenkins hosts. Instead the tests fail regularly and 
appear to get ignored completely.

A quick grep of "12345" shows up many places in the test suite where this 
practise has developed.

* All {{BaseContainerManagerTest}} subclasses
* {{TestNodeManagerShutdown}}
* {{TestContainerManager}}
+ others

This needs to be addressed through portscanning and dynamic port allocation. 
Please can someone do this.

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