Github user tgravescs commented on a diff in the pull request:
https://github.com/apache/spark/pull/10647#discussion_r54019754
--- Diff: core/src/main/scala/org/apache/spark/deploy/SparkHadoopUtil.scala
---
@@ -126,7 +127,15 @@ class SparkHadoopUtil extends Logging {
def getSecretKeyFromUserCredentials(key: String): Array[Byte] = { null }
def loginUserFromKeytab(principalName: String, keytabFilename: String) {
- UserGroupInformation.loginUserFromKeytab(principalName, keytabFilename)
+ var principal = SecurityUtil.getServerPrincipal(principalName,
InetAddress.getLocalHost)
+ UserGroupInformation.loginUserFromKeytab(principal, keytabFilename)
+ }
+
+ def loginUserFromKeytabAndReturnUGI(
+ principalName: String,
+ keytabFilename: String): UserGroupInformation = {
+ var principal = SecurityUtil.getServerPrincipal(principalName,
InetAddress.getLocalHost)
--- End diff --
you can't do this for normal operation. A user principal is not the same as
a server principal and normally users principals don't have HOSTS. I don't see
how this doesn't break the current functionality.
As I believe @vanzin stated in the jira _HOST is meant for servers, not for
applications running on yarn.
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