spark git commit: [SPARK-20239][CORE][2.1-BACKPORT] Improve HistoryServer's ACL mechanism

Repository: spark Updated Branches: refs/heads/branch-2.1 2d47e1aaf -> 359382c03 [SPARK-20239][CORE][2.1-BACKPORT] Improve HistoryServer's ACL mechanism Current SHS (Spark History Server) has two different ACLs: * ACL of base URL, it is controlled by "spark.acls.enabled" or

spark git commit: [SPARK-20239][CORE][2.1-BACKPORT] Improve HistoryServer's ACL mechanism

Repository: spark Updated Branches: refs/heads/branch-2.0 ddf6dd88a -> 068500a4a [SPARK-20239][CORE][2.1-BACKPORT] Improve HistoryServer's ACL mechanism Current SHS (Spark History Server) has two different ACLs: * ACL of base URL, it is controlled by "spark.acls.enabled" or