viirya commented on a change in pull request #31761:
URL: https://github.com/apache/spark/pull/31761#discussion_r588969592
##########
File path: core/src/main/scala/org/apache/spark/internal/config/package.scala
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@@ -691,6 +691,15 @@ package object config {
.toSequence
.createWithDefault(Nil)
+ private[spark] val KERBEROS_FILESYSTEM_RENEWAL_EXCLUDE =
+ ConfigBuilder("spark.kerberos.renewal.exclude.hadoopFileSystems")
+ .doc("The list of Hadoop filesystem URLs whose hosts will be excluded
from " +
Review comment:
Because the configuration value will be parsed as file system URLs to
get file system. A simple host name doesn't work here.
e.g.
```scala
scala> new Path("hdfs.namenode.net").getFileSystem(new
Configuration()).getUri.getHost
res9: String = null
```
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