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From "Aaron T. Myers (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-10079) log a warning message if group resolution takes too long.
Date Fri, 01 Nov 2013 14:49:20 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-10079?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13811297#comment-13811297
] 

Aaron T. Myers commented on HADOOP-10079:
-----------------------------------------

Agree with all of Andrew's comments. Groups lookups should really be quite fast, so I don't
think it'd be unreasonable to log a warn after something much lower than 30s, e.g. 3-5s.

Since we're now measure group resolution time, should we perhaps put this into a percentile
metric as well?

> log a warning message if group resolution takes too long.
> ---------------------------------------------------------
>
>                 Key: HADOOP-10079
>                 URL: https://issues.apache.org/jira/browse/HADOOP-10079
>             Project: Hadoop Common
>          Issue Type: Improvement
>    Affects Versions: 2.2.0
>            Reporter: Colin Patrick McCabe
>            Assignee: Colin Patrick McCabe
>         Attachments: HADOOP-10079.001.patch
>
>
> We should log a warning message if group resolution takes too long.



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