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From "Steve Loughran (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HADOOP-13323) Downgrade stack trace on FS load from Warn to debug
Date Mon, 27 Jun 2016 13:37:52 GMT
Steve Loughran created HADOOP-13323:
---------------------------------------

             Summary: 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


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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