[
https://issues.apache.org/jira/browse/HADOOP-2566?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12559284#action_12559284
]
Doug Cutting commented on HADOOP-2566:
--------------------------------------
> Should a user of globStatus() be able to distinguish between a non-existent
> path and a glob that does not match any files?
I'm not sure I completely understand the distinction. In one case are you
passing a path without any meta characters but that does not exist, and in the
other one with metacharacters but that matches no files?
In any case it should probably handle this the same way globPaths() does. If
the distinction is important then perhaps the non-existing file case should
return null, while the non-matching expression case should return an empty
array.
> need FileSystem#globStatus method
> ---------------------------------
>
> Key: HADOOP-2566
> URL: https://issues.apache.org/jira/browse/HADOOP-2566
> Project: Hadoop
> Issue Type: Improvement
> Components: fs
> Reporter: Doug Cutting
> Assignee: Hairong Kuang
> Fix For: 0.16.0
>
>
> To remove the cache of FileStatus in DFSPath (HADOOP-2565) without hurting
> performance, we must use file enumeration APIs that return FileStatus[]
> rather than Path[]. Currently we have FileSystem#globPaths(), but that
> method should be deprecated and replaced with a FileSystem#globStatus().
> We need to deprecate FileSystem#globPaths() in 0.16 in order to remove the
> cache in 0.17.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
