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From "Sean Owen (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SPARK-11765) Avoid assign UI port between browser unsafe ports (or just 4045: lockd)
Date Thu, 09 Jun 2016 08:53:20 GMT

    [ https://issues.apache.org/jira/browse/SPARK-11765?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15322180#comment-15322180
] 

Sean Owen commented on SPARK-11765:
-----------------------------------

That's how it works now.

> Avoid assign UI port between browser unsafe ports (or just 4045: lockd)
> -----------------------------------------------------------------------
>
>                 Key: SPARK-11765
>                 URL: https://issues.apache.org/jira/browse/SPARK-11765
>             Project: Spark
>          Issue Type: Improvement
>            Reporter: Jungtaek Lim
>            Priority: Minor
>
> Spark UI port starts on 4040, and UI port is incremented by 1 for every confliction.
> In our use case, we have some drivers running at the same time, which makes UI port to
be assigned to 4045, which is treated to unsafe port for chrome and mozilla.
> http://src.chromium.org/viewvc/chrome/trunk/src/net/base/net_util.cc?view=markup
> http://www-archive.mozilla.org/projects/netlib/PortBanning.html#portlist
> We would like to avoid assigning UI to these ports, or just avoid assigning UI port to
4045 which is too close to default port.
> If we'd like to accept this idea, I'm happy to work on it.



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