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https://issues.apache.org/jira/browse/HDFS-9732?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15128689#comment-15128689
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Chris Nauroth commented on HDFS-9732:
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Yes, agreed. I would be +1 for an approach that converts {{hdfs fetchdt}} to
use its own specific string formatting logic. I think reliance on {{toString}}
in any public contract is generally a bad idea for the same reasons you
described. People expect {{toString}} to be useful primarily for debugging,
and they want it to be easily evolved to add more information.
BTW, was the current attachment meant to go on a different JIRA?
> Remove DelegationTokenIdentifier.toString() —for better logging output
> ----------------------------------------------------------------------
>
> Key: HDFS-9732
> URL: https://issues.apache.org/jira/browse/HDFS-9732
> Project: Hadoop HDFS
> Issue Type: Improvement
> Affects Versions: 2.7.2
> Reporter: Steve Loughran
> Attachments: HADOOP-12752-001.patch
>
> Original Estimate: 0.5h
> Remaining Estimate: 0.5h
>
> HDFS {{DelegationTokenIdentifier.toString()}} adds some diagnostics info,
> owner, sequence number. But its superclass,
> {{AbstractDelegationTokenIdentifier}} contains a lot more information,
> including token issue and expiry times.
> Because {{DelegationTokenIdentifier.toString()}} doesn't include this data,
> information that is potentially useful for kerberos diagnostics is lost.
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