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Posted to common-issues@hadoop.apache.org by "Steve Loughran (JIRA)" <ji...@apache.org> on 2016/02/10 14:04:18 UTC
[jira] [Commented] (HADOOP-12649) Improve Kerberos diagnostics and
failure handling
[ https://issues.apache.org/jira/browse/HADOOP-12649?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15140737#comment-15140737 ]
Steve Loughran commented on HADOOP-12649:
-----------------------------------------
YARN-4629 starts to add some yarn-client code to help manage credential setup
> Improve Kerberos diagnostics and failure handling
> -------------------------------------------------
>
> Key: HADOOP-12649
> URL: https://issues.apache.org/jira/browse/HADOOP-12649
> Project: Hadoop Common
> Issue Type: Improvement
> Components: security
> Affects Versions: 2.7.1
> Environment: Kerberos
> Reporter: Steve Loughran
>
> Sometimes —apparently— some people cannot get kerberos to work.
> The ability to diagnose problems here is hampered by some aspects of UGI
> # the only way to turn on JAAS debug information is through an env var, not within the JVM
> # failures are potentially underlogged
> # exceptions raised are generic IOEs, so can't be trapped and filtered
> # failure handling on the TGT renewer thread is nonexistent
> # the code is barely-readable, underdocumented mess.
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