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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