Github user ivankelly commented on the issue:
https://github.com/apache/zookeeper/pull/227
Is this for tests or for production use?
> Using an ephemeral port may work but it makes trickier setting up things.
How does it make things tricker? Each server you set up in the test setup
just needs to expose a method to query which port it is listening. This is
simplier than using a whole other transport, and ensures the same code paths
will be used in the test as will be used in production.
> Without opening ports you can run multiple parallel tests easily
Opening ports doesn't have to be hard.
> Opening a port can be seen as a security risk.
Tests should not be run anywhere security is a concern.
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