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https://issues.apache.org/jira/browse/HADOOP-8299?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15606797#comment-15606797
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Andrew Wang commented on HADOOP-8299:
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Thanks for working on this Manoj. Seems like this is dependent on HADOOP-13055,
since the linkMergeSlash config won't work until that goes in. If you want to
get this in first though, we can have the message say it's unsupported, and
update the message in HADOOP-13055.
> ViewFileSystem link slash mount point crashes with IndexOutOfBoundsException
> ----------------------------------------------------------------------------
>
> Key: HADOOP-8299
> URL: https://issues.apache.org/jira/browse/HADOOP-8299
> Project: Hadoop Common
> Issue Type: Bug
> Components: viewfs
> Affects Versions: 3.0.0-alpha1
> Reporter: Eli Collins
> Assignee: Manoj Govindassamy
> Attachments: HADOOP-8299.01.patch
>
>
> We currently assume [a typical viewfs client
> configuration|https://issues.apache.org/jira/secure/attachment/12507504/viewfs_TypicalMountTable.png]
> is a set of non-overlapping mounts. This means every time you want to add a
> new top-level directory you need to update the client-side mountable config.
> If users could specify a slash mount, and then add additional mounts as
> necessary they could add a new top-level directory without updating all
> client configs (as long as the new top-level directory was being created on
> the NN the slash mount points to). This could be achieved by HADOOP-8298
> (merge mounts, since we're effectively merging all new mount points with
> slash) or having the notion of a "default NN" for a mount table.
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