[jira] [Created] (SPARK-8982) Worker hostnames not showing in Master web ui when launched with start-slaves.sh

["Ben Zimmer (JIRA)" <ji...@apache.org>]

Ben Zimmer created SPARK-8982:
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             Summary: Worker hostnames not showing in Master web ui when launched with start-slaves.sh
                 Key: SPARK-8982
                 URL: https://issues.apache.org/jira/browse/SPARK-8982
             Project: Spark
          Issue Type: Bug
          Components: Spark Core
    Affects Versions: 1.4.0
            Reporter: Ben Zimmer
            Priority: Minor


If a "--host" argument is not provided to Worker, WorkerArguments uses Utils.localHostName to find the host name. SPARK-6440 changed the functionality of Utils.localHostName to retrieve the local IP address instead of host name.

Since start-slave.sh does not provide the "--host" argument, clusters started with start-slaves.sh now show IP addresses instead of hostnames in the Master web UI. This is inconvenient when starting and debugging small clusters.

A simple fix would be to find the local machine's hostname in start-slave.sh and pass it as the "--host" argument.



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