[jira] [Created] (MESOS-431) Port isolation / sharing in the ephemeral range.

["Benjamin Mahler (JIRA)" <ji...@apache.org>]

Benjamin Mahler created MESOS-431:
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             Summary: Port isolation / sharing in the ephemeral range.
                 Key: MESOS-431
                 URL: https://issues.apache.org/jira/browse/MESOS-431
             Project: Mesos
          Issue Type: Brainstorming
            Reporter: Benjamin Mahler


We currently have yet to enforce the port allocations: MESOS-359

An additional issue is that we don't enforce any kind of fairness in the ephemeral range. At twitter, this manifests in connection-heavy jobs using the full ephemeral range. In turn, any executors we attempt to run after this point cannot bind to an ephemeral port.

We should explore enforcement of fair-sharing of ports, not sure how this ties into providing each executor with its own networking stack. This may be unnecessary in the long term depending on how we implement network isolation.  


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