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https://issues.apache.org/jira/browse/HBASE-20047?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16375962#comment-16375962
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maoling commented on HBASE-20047:
---------------------------------
v0 just follows an example of Hadoop's
[AbstractDelegationTokenIdentifier|https://github.uconn.edu/SNSL/hadoop/blob/master/code/stock_hadoop/hadoop-1.1.2/src/core/org/apache/hadoop/security/token/delegation/AbstractDelegationTokenIdentifier.java#L189]
v1 has used + operator to concat the string
{code:java}
AuthenticationTokenIdentifier ati = new AuthenticationTokenIdentifier();
ati.setUsername("maoling");
ati.setKeyId(123);
ati.setIssueDate(System.currentTimeMillis());
ati.setExpirationDate(System.currentTimeMillis());
ati.setSequenceNumber(System.currentTimeMillis());
System.out.println("the format of the returned string is: \n" + ati);
{code}
the format of the returned string is:
{code:java}
(username=maoling, keyId=123, issueDate=1519538066607,
expirationDate=1519538066607, sequenceNumber=1519538066607)
{code}
> 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
> Assignee: maoling
> Priority: Minor
> Labels: beginner
> Attachments: HBASE-20047.master.v0.patch, HBASE-20047.master.v1.patch
>
>
> 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 [email protected], 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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