Ruslan Dautkhanov created SPARK-19588:
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Summary: Allow putting keytab files specified by
Key: SPARK-19588
URL: https://issues.apache.org/jira/browse/SPARK-19588
Project: Spark
Issue Type: New Feature
Components: Spark Core, Spark Submit
Affects Versions: 2.1.0, 2.0.2
Environment: kerberized cluster, Spark 2
Reporter: Ruslan Dautkhanov
As a workaround for SPARK-19038 tried putting keytab in user's home directory
in HDFS but this fails with
{noformat}
Exception in thread "main" org.apache.spark.SparkException: Keytab file:
hdfs:///user/svc_odiprd/.kt does not exist
at
org.apache.spark.deploy.SparkSubmit$.prepareSubmitEnvironment(SparkSubmit.scala:555)
at org.apache.spark.deploy.SparkSubmit$.submit(SparkSubmit.scala:158)
at org.apache.spark.deploy.SparkSubmit$.main(SparkSubmit.scala:124)
at org.apache.spark.deploy.SparkSubmit.main(SparkSubmit.scala)
{noformat}
This is yarn-client mode, so driver probably can't see HDFS while submitting a
job; although I suspect it doesn't not only with yarn-client.
Would be great to support reading keytab for kerberos ticket renewals directly
from HDFS.
We think that in some scenarios it's more secure than referencing a keytab from
a local fs on a client machine that does a spark-submit.
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