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From "Chen Liang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-13323) Downgrade stack trace on FS load from Warn to debug
Date Mon, 01 Aug 2016 18:15:20 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-13323?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15402554#comment-15402554

Chen Liang commented on HADOOP-13323:

Hi [~stevel@apache.org],

I'm trying to dig into the failed test as you mentioned in HADOOP-12588. But the test results
report seems to be lost, could you elaborate a bit more on the failed test?

- Chen

> Downgrade stack trace on FS load from Warn to debug
> ---------------------------------------------------
>                 Key: HADOOP-13323
>                 URL: https://issues.apache.org/jira/browse/HADOOP-13323
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: fs
>    Affects Versions: 2.7.3
>            Reporter: Steve Loughran
>            Assignee: Steve Loughran
>            Priority: Minor
>         Attachments: HADOOP-13323-branch-2-001.patch
> HADOOP-12636 catches exceptions on FS creation, but prints a stack trace @ warn every
time..this is noisy and irrelevant if the installation doesn't need connectivity to a specific
filesystem or object store.
> I propose: only printing the toString values of the exception chain @ warn; the full
stack comes out at debug.
> We could some more tuning: 
> * have a specific log for this exception, which allows installations to turn even the
warnings off.
> * add a link to a wiki page listing the dependencies of the shipped filesystems

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