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https://issues.apache.org/jira/browse/HADOOP-12664?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15801025#comment-15801025
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Steve Loughran commented on HADOOP-12664:
-----------------------------------------
nice bit of java 8 code.
I wonder if we could pull the path scan logic out into something self
contained, as it'd be useful elsewhere, such as the Shell stuff.
> UGI auto-renewer does not verify kinit availability during initialization
> -------------------------------------------------------------------------
>
> Key: HADOOP-12664
> URL: https://issues.apache.org/jira/browse/HADOOP-12664
> Project: Hadoop Common
> Issue Type: Improvement
> Reporter: Arpit Agarwal
> Assignee: Ray Chiang
> Priority: Minor
> Labels: supportability
> Attachments: HADOOP-12664.001.patch, HADOOP-12664.002.patch
>
>
> UGI auto-renewer does not verify that {{hadoop.kerberos.kinit.command}} is in
> the path during initialization. If not available, the auto-renewal thread
> will hit an error during TGT renewal. We recently saw a case where it
> manifests as transient errors during client program execution which can be
> hard to track down without UGI logging.
> It seems like {{kinit}} availability should be verified during initialization
> to make the behavior more predictable.
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