[jira] [Commented] (FLINK-5974) Support Mesos DNS

["ASF GitHub Bot (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/FLINK-5974?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15994915#comment-15994915 ] 

ASF GitHub Bot commented on FLINK-5974:
---------------------------------------

Github user tillrohrmann commented on the issue:

    https://github.com/apache/flink/pull/3692
  
    Thanks for your contribution @vijikarthi and @EronWright and @StephanEwen for the review work. I will address @StephanEwen's comments and then merge this PR.


> Support Mesos DNS
> -----------------
>
>                 Key: FLINK-5974
>                 URL: https://issues.apache.org/jira/browse/FLINK-5974
>             Project: Flink
>          Issue Type: Improvement
>          Components: Cluster Management, Mesos
>            Reporter: Eron Wright 
>            Assignee: Vijay Srinivasaraghavan
>
> In certain Mesos/DCOS environments, the slave hostnames aren't resolvable.  For this and other reasons, Mesos DNS names would ideally be used for communication within the Flink cluster, not the hostname discovered via `InetAddress.getLocalHost`.
> Some parts of Flink are already configurable in this respect, notably `jobmanager.rpc.address`.  However, the Mesos AppMaster doesn't use that setting for everything (e.g. artifact server), it uses the hostname.
> Similarly, the `taskmanager.hostname` setting isn't used in Mesos deployment mode.   To effectively use Mesos DNS, the TM should use `<task-name>.<framework-name>.mesos` as its hostname.   This could be derived from an interpolated configuration string.



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