Github user vanzin commented on a diff in the pull request:
https://github.com/apache/spark/pull/20657#discussion_r172361945
--- Diff:
core/src/main/scala/org/apache/spark/internal/config/package.scala ---
@@ -520,4 +520,16 @@ package object config {
.checkValue(v => v > 0, "The threshold should be positive.")
.createWithDefault(10000000)
+ private[spark] val CREDENTIALS_RENEWAL_INTERVAL_RATIO =
+ ConfigBuilder("spark.security.credentials.renewalRatio")
+ .doc("Ratio of the credential's expiration time when Spark should
fetch new credentials.")
+ .doubleConf
+ .createWithDefault(0.75d)
+
+ private[spark] val CREDENTIALS_RENEWAL_RETRY_WAIT =
+ ConfigBuilder("spark.security.credentials.retryWait")
+ .doc("How long to wait before retrying to fetch new credentials
after a failure.")
+ .timeConf(TimeUnit.SECONDS)
+ .createWithDefaultString("1h")
--- End diff --
They're not really internal, just not documented.
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