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From "Ray Chiang (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HADOOP-12664) UGI auto-renewer does not verify kinit availability during initialization
Date Wed, 04 Jan 2017 23:20:58 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-12664?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Ray Chiang updated HADOOP-12664:
--------------------------------
    Attachment: HADOOP-12664.002.patch

Sorry for the long delay.  Updated patch with some notes:
- I rewrote the path search using Java 8 syntax.  It was much faster to write, although this
would preclude a branch-2 version with the same code.
- Added several unit tests.

> 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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