Github user jerryshao commented on a diff in the pull request:
https://github.com/apache/spark/pull/19509#discussion_r145329972
--- Diff:
resource-managers/yarn/src/main/scala/org/apache/spark/deploy/yarn/config.scala
---
@@ -347,6 +347,10 @@ package object config {
.timeConf(TimeUnit.MILLISECONDS)
.createWithDefault(Long.MaxValue)
+ private[spark] val KERBEROS_RELOGIN_PERIOD =
ConfigBuilder("spark.yarn.kerberos.relogin.period")
+ .timeConf(TimeUnit.SECONDS)
+ .createWithDefaultString("1m")
--- End diff --
I think we should put this into doc. Also is it too frequent to call?
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