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https://issues.apache.org/jira/browse/HADOOP-8709?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13439826#comment-13439826
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Daryn Sharp commented on HADOOP-8709:
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The issue with inconsistently throwing FNF for a glob depending on a parent dir
makes it harder to tell if something is a non-existent glob. I'd rather not
risk having issues with {{FsShell}} reverting to 1.x behavior of sometimes
unexpectedly creating paths with glob chars in them. Or user code for that
matter.
If left as-is, I think we'll need to change MR code that tries to batch up
certain exceptions. It doesn't expect an IOException, so it rips further up
the stack and discards the batched exceptions. I'm sure there's plenty of user
code not expecting IOException either. Esp. in case like
"/path-exists/$TIMESTAMP/*.dat" where it used to return an empty array, but now
throws an exception because $TIMESTAMP doesn't exist yet.
This just seems like an extremely risky change inadvertently caused by the
listStatus change (which I think is generally ok). Why don't we consider
adding a {{globStatus(Path, boolean)}} to control whether exceptions will be
thrown?
> globStatus changed behavior from 0.20/1.x
> -----------------------------------------
>
> Key: HADOOP-8709
> URL: https://issues.apache.org/jira/browse/HADOOP-8709
> Project: Hadoop Common
> Issue Type: Bug
> Components: fs
> Affects Versions: 0.23.0, 2.0.0-alpha
> Reporter: Jason Lowe
> Assignee: Jason Lowe
> Priority: Critical
> Attachments: HADOOP-8709.patch, HADOOP-8709.patch
>
>
> In 0.20 or 1.x, globStatus will return an empty array if the glob pattern
> does not match any files. After HADOOP-6201 it throws FileNotFoundException.
> The javadoc states it will return an empty array.
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