[jira] [Created] (FLINK-3570) Replace random NIC selection heuristic by InetAddress.getLocalHost

[Shang Yuanchun (Jira)]

Till Rohrmann created FLINK-3570:
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             Summary: Replace random NIC selection heuristic by InetAddress.getLocalHost
                 Key: FLINK-3570
                 URL: https://issues.apache.org/jira/browse/FLINK-3570
             Project: Flink
          Issue Type: Improvement
          Components: Distributed Runtime
    Affects Versions: 1.0.0, 1.1.0
            Reporter: Till Rohrmann
            Assignee: Till Rohrmann
            Priority: Minor


Currently, the {{ConnectionUtils.findAddressUsingStrategy}} method returns the first {{NetworkInterface}} whose address is not a loop back address, not a link local address and an {{Inet4Address}}. Before returning this address, it is retried to connect to the {{JobManager}} using the {{InetAddress.getLocalHost}} address a last time.

The heuristic, if not choosing the {{InetAddress.getLocalHost}}, often makes no sense because it returns a random {{NetworkInterface}} address. It would be better to simply return the {{InetAddress.getLocalHost()}} instead.



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