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https://issues.apache.org/jira/browse/HBASE-20047?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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maoling updated HBASE-20047:
----------------------------
    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:
{code:java}
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=some_u...@example.com, renewer=yarn, realUser=, 
issueDate=1519274405003, maxDate=1519879205003, sequenceNumber=23, 
masterKeyId=9)

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

 

  was:
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:

{code}

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=some_u...@example.com, renewer=yarn, realUser=, 
issueDate=1519274405003, maxDate=1519879205003, sequenceNumber=23, 
masterKeyId=9)

{code}

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


> AuthenticationTokenIdentifier should provide a toString
> -------------------------------------------------------
>
>                 Key: HBASE-20047
>                 URL: https://issues.apache.org/jira/browse/HBASE-20047
>             Project: HBase
>          Issue Type: Improvement
>          Components: Usability
>            Reporter: Sean Busbey
>            Priority: Minor
>              Labels: beginner
>
> 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:
> {code:java}
> 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=some_u...@example.com, renewer=yarn, realUser=, 
> issueDate=1519274405003, maxDate=1519879205003, sequenceNumber=23, 
> masterKeyId=9)
> {code}
> Stuff in TokenIdentifier is supposed to be public, so we should be fine to 
> dump everything, similar to Hadoop's AbstractDelegationTokenIdentifier.
>  



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