Github user vanzin commented on the issue:
https://github.com/apache/spark/pull/19103
BTW Oozie can also disable the HDFS provider
(`spark.yarn.security.credentials.hadoopfs.enabled=false`, I think). But it
would be nice if Spark was able to do that by itself is the current UGI does
not have a TGT (or, alternatively, some way to disable all of the credential
providers with a single setting). But that's for a separate PR.
This one looks ok but it really needs to be opened against master instead.
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