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From "Chris Nauroth (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-7573) hadoop should log configuration reads
Date Fri, 08 May 2015 21:38:04 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-7573?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14535619#comment-14535619
] 

Chris Nauroth commented on HADOOP-7573:
---------------------------------------

I agree with some of the earlier comments that this is more likely to introduce noise than
to help debugging.  I think we need to decide between resolving as Won't Fix or proceeding
with the patch.  I'm inclined to resolve as Won't Fix.  Does anyone else want to comment?

> hadoop should log configuration reads
> -------------------------------------
>
>                 Key: HADOOP-7573
>                 URL: https://issues.apache.org/jira/browse/HADOOP-7573
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: conf
>    Affects Versions: 0.20.203.0
>            Reporter: Ari Rabkin
>            Assignee: Ari Rabkin
>            Priority: Minor
>              Labels: BB2015-05-RFC
>         Attachments: HADOOP-7573.patch, HADOOP-7573.patch, HADOOP-7573.patch, HADOOP-7573.patch,
HADOOP-7573.patch, HADOOP-7573.patch
>
>
> For debugging, it would often be valuable to know which configuration options ever got
read out of the Configuration into the rest of the program -- an unread option didn't cause
a problem. This patch logs the first time each option is read.



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