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Posted to issues@spark.apache.org by "Jackey Lee (Jira)" <ji...@apache.org> on 2020/01/15 01:34:00 UTC

[jira] [Created] (SPARK-30513) Question about spark on k8s

Jackey Lee created SPARK-30513:
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             Summary: Question about spark on k8s
                 Key: SPARK-30513
                 URL: https://issues.apache.org/jira/browse/SPARK-30513
             Project: Spark
          Issue Type: Question
          Components: Kubernetes
    Affects Versions: 3.0.0
            Reporter: Jackey Lee


My question is, why we wrote the domain name of Kube-DNS in the code? Isn't
it better to read domain name from the service, or just use the hostname?

In our scenario, we run spark on Kata-like containers, and found the code
had written the Kube-DNS domain. If Kube-DNS is not configured in
environment, tasks would run failed.

Besides, kube-dns is just a plugin for k8s, not a required component for k8s. We can use better DNS services without necessarily using this.




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