[HADOOP-15591] KMSClientProvider should log KMS DT acquisition at INFO level

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 3.1.0
• Fix Version/s: 3.2.0
• Component/s: kms
• Target Version/s: 3.2.0
• Hadoop Flags: Reviewed
• Assignee: Kitti Nanasi
• Reporter: Kitti Nanasi
• Created: 03/Jul/18 12:51
• Updated: 09/Jul/18 19:24
• Resolved: 09/Jul/18 19:02

Description

We can see HDFS and Hive delegation token (DT) creation as INFO messages in Spark application logs but not for KMS DTs:

18/06/07 10:02:35 INFO hdfs.DFSClient: Created token for admin: HDFS_DELEGATION_TOKEN owner=[e-mail], renewer=yarn, realUser=, issueDate=1528390955760, maxDate=1528995755760, sequenceNumber=125659, masterKeyId=795 on ha-hdfs:dev
18/06/07 10:02:37 INFO hive.metastore: Trying to connect to metastore with URI thrift://hostnam.example.net:9083
18/06/07 10:02:37 INFO hive.metastore: Opened a connection to metastore, current connections: 1
18/06/07 10:02:37 INFO hive.metastore: Connected to metastore.
18/06/07 10:02:37 INFO security.HiveCredentialProvider: Get Token from hive metastore: Kind: HIVE_DELEGATION_TOKEN, Service: , Ident: 00 1b 61 6e 69 73 68 2d 61 64 6d 69 6e 40 43 4f 52 50 2e 49 4e 54 55 49 54 2e 4e 45 54 04 68 69 76 65 00 8a 01 63 db 33 3a 83 8a 01 63 ff 3f be 83 8e 17 8d 8e 06 96

Please implement KMS DT acquisition events at INFO level as it will help supportability of encrypted HDSF filesystems.