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https://issues.apache.org/jira/browse/HADOOP-6900?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12897099#action_12897099
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Hairong Kuang commented on HADOOP-6900:
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> I don't understand the compatibility argument since this is new API.
Even though this is a new API, but mapreduce already has some logic in their
code traversing the input directories and getting file status/block locations.
Existing code does not allow any concurrent modification to input directories.
I agree that allowing concurrent modification could be an option, but lets do
it in a different jira.
> FileSystem#listLocatedStatus should not throw generic RuntimeException to
> indicate error conditions
> ---------------------------------------------------------------------------------------------------
>
> Key: HADOOP-6900
> URL: https://issues.apache.org/jira/browse/HADOOP-6900
> Project: Hadoop Common
> Issue Type: Bug
> Reporter: Suresh Srinivas
> Assignee: Hairong Kuang
> Attachments: listFilesIO.patch, listFilesIO1.patch
>
>
> HDFS-6870 introduced FileSystem#listLocatedStatus(), that returns an Iterator
> to iterate through LocatedFileStatus for files under a directory or
> recursively under a sub-directory. Iterator currently throws generic
> RuntimeException to indicate error conditions. API needs to be changed to
> throw appropriate exceptions to indicate error conditions.
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