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Posted to issues@spark.apache.org by "Jose Luis Pedrosa (JIRA)" <ji...@apache.org> on 2019/06/10 08:49:00 UTC

[jira] [Created] (SPARK-27989) Add retries on the connection to the driver

Jose Luis Pedrosa created SPARK-27989:
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             Summary: Add retries on the connection to the driver
                 Key: SPARK-27989
                 URL: https://issues.apache.org/jira/browse/SPARK-27989
             Project: Spark
          Issue Type: Improvement
          Components: Kubernetes, Spark Core
    Affects Versions: 2.4.3
            Reporter: Jose Luis Pedrosa


Due to Java caching of negative DNS resolution (failed requests are never retried).

Any failure in the DNS when trying to connect to the driver, will make impossible a connection from that process.

This happens specially in Kubernetes where network setup of pods can take some time,

 



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