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https://issues.apache.org/jira/browse/HADOOP-9357?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13617114#comment-13617114
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Vinod Kumar Vavilapalli commented on HADOOP-9357:
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The fix version was set to 2.0.4-alpha, should be 2.0.5-beta? Also, it was left
unresolved?
> Fallback to default authority if not specified in FileContext
> -------------------------------------------------------------
>
> Key: HADOOP-9357
> URL: https://issues.apache.org/jira/browse/HADOOP-9357
> Project: Hadoop Common
> Issue Type: Bug
> Reporter: Andrew Wang
> Assignee: Andrew Wang
> Priority: Minor
> Fix For: 2.0.4-alpha
>
> Attachments: hadoop-9357-1.patch, hadoop-9357-2.patch,
> hadoop-9357-3.patch
>
>
> Currently, FileContext adheres rather strictly to RFC2396 when it comes to
> parsing absolute URIs (URIs with a scheme). If a user asks for a URI like
> "hdfs:///tmp", FileContext will error while FileSystem will add the authority
> of the default FS (e.g. turn it into "hdfs://defaultNN:port/tmp").
> This is technically correct, but FileSystem's behavior is nicer for users and
> okay based on 5.2.3 in the RFC, so lets do it in FileContext too:
> {noformat}
> For backwards
> compatibility, an implementation may work around such references
> by removing the scheme if it matches that of the base URI and the
> scheme is known to always use the syntax. The parser
> can then continue with the steps below for the remainder of the
> reference components. Validating parsers should mark such a
> misformed relative reference as an error.
> {noformat}
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