[HBASE-20047] AuthenticationTokenIdentifier should provide a toString

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 3.0.0-alpha-1, 2.1.0, 1.3.3, 1.4.10
• Component/s: Usability
• Labels: beginner
• Hadoop Flags: Reviewed
• Assignee: Ling Mao
• Reporter: Sean Busbey
• Created: 22/Feb/18 05:14
• Updated: 07/Oct/19 18:36
• Resolved: 22/Mar/18 15:22

Description

It'd be easier to debug things like MapReduce and Spark jobs if our AuthenticationTokenIdentifier provided a toString method.

For comparison, here's an example of a MapReduce job that has both an HDFS delegation token and our delegation token:

18/02/21 20:40:06 INFO mapreduce.JobSubmitter: Kind: HBASE_AUTH_TOKEN, Service: 92a63bd8-9e00-4c04-ab61-da8e606068e1, Ident: (org.apache.hadoop.hbase.security.token.AuthenticationTokenIdentifier@17)
18/02/21 20:40:06 INFO mapreduce.JobSubmitter: Kind: HDFS_DELEGATION_TOKEN, Service: 172.31.118.118:8020, Ident: (token for some_user: HDFS_DELEGATION_TOKEN owner=[e-mail], renewer=yarn, realUser=, issueDate=1519274405003, maxDate=1519879205003, sequenceNumber=23, masterKeyId=9)

Stuff in TokenIdentifier is supposed to be public, so we should be fine to dump everything, similar to Hadoop's AbstractDelegationTokenIdentifier.