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https://issues.apache.org/jira/browse/HADOOP-13018?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15253598#comment-15253598
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Steve Loughran commented on HADOOP-13018:
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# you can use {{verifyFileIsValid}} is to validate the existence/file-ness of
the token file; it will return true if the code should carry on on with the
validation
# if there is problems with the file, should the validation just log or exit?
The {{verify()}} method makes that decision for conditions; there isn't an
equivalent for exception catch & rethrow ... this might be time. to add that.
I know that the UGI stuff should now fail meaningfully if there are problems
with the token file ... if we are confident that this holds then maybe your
policy: log-but-continue is the right one.
Testing: how about setting things up with an invalid path to the token file and
see how kdiag reacts?
> Make Kdiag check whether hadoop.token.files points to existent and valid files
> ------------------------------------------------------------------------------
>
> Key: HADOOP-13018
> URL: https://issues.apache.org/jira/browse/HADOOP-13018
> Project: Hadoop Common
> Issue Type: Improvement
> Affects Versions: 3.0.0
> Reporter: Ravi Prakash
> Assignee: Ravi Prakash
> Attachments: HADOOP-13018.01.patch
>
>
> Steve proposed that KDiag should fail fast to help debug the case that
> hadoop.token.files points to a file not found. This JIRA is to affect that.
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