FsShell should dump all exceptions at DEBUG level
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Key: HADOOP-7114
URL: https://issues.apache.org/jira/browse/HADOOP-7114
Project: Hadoop Common
Issue Type: Improvement
Components: fs
Affects Versions: 0.23.0
Reporter: Todd Lipcon
Assignee: Todd Lipcon
Priority: Minor
Most of the FsShell commands catch exceptions and then just print out an error
like "foo: " + e.getLocalizedMessage(). This is fine when the exception is
"user-facing" (eg permissions errors) but in the case of a user hitting a bug
you get a useless error message with no stack trace. For example, something
"chmod: null" in the case of a NullPointerException bug.
It would help debug these cases for users and developers if we also logged the
exception with full trace at DEBUG level.
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