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Date: Mon, 1 Feb 2016 18:46:39 +0000 (UTC)
From: "Chris Nauroth (JIRA)" <jira@apache.org>
To: hdfs-issues@hadoop.apache.org
Message-ID: <JIRA.12935705.1454351550000.266903.1454352399926@Atlassian.JIRA>
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Subject: =?utf-8?Q?[jira]_[Commented]_(HDFS-9732)_Remove_DelegationTo?=
 =?utf-8?Q?kenIdentifier.toString()_=E2=80=94for_better_logging_output?=
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    [ https://issues.apache.org/jira/browse/HDFS-9732?page=3Dcom.atlassian.=
jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=3D15126=
776#comment-15126776 ]=20

Chris Nauroth commented on HDFS-9732:
-------------------------------------

The {{hdfs fetchdt}} command depends on the current output format of {{Dele=
gationTokenIdentifier#toString}}.  Unfortunately, that means the simple way=
 to make this change also would be backwards-incompatible.

We'll either need to target the change to 3.x, or look at breaking the depe=
ndency of {{hdfs fetchdt}} so that it maintains its current output, but {{t=
oString}} can still add more detail for things like logging.

HDFS-9085 is a patch that changed this code recently.  The decision on that=
 one was to go to trunk only.

> Remove DelegationTokenIdentifier.toString() =E2=80=94for better logging o=
utput
> ----------------------------------------------------------------------
>
>                 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,  {{AbstractDelegationTokenIden=
tifier}} contains a lot more information, including token issue and expiry =
times.
> Because  {{DelegationTokenIdentifier.toString()}} doesn't include this da=
ta,
> information that is potentially useful for kerberos diagnostics is lost.


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