[jira] [Updated] (HADOOP-8299) ViewFileSystem link slash mount point crashes with IndexOutOfBoundsException

["Manoj Govindassamy (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HADOOP-8299?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Manoj Govindassamy updated HADOOP-8299:
---------------------------------------
    Target Version/s: 3.0.0-alpha2  (was: 2.0.0-alpha)
             Summary: ViewFileSystem link slash mount point crashes with IndexOutOfBoundsException  (was: ViewFs doesn't work with a slash mount point)


ViewFileSystem support for LinkMergeSlash is now tracked by HADOOP-13055. 

Will make use of this bug to address the issue discussed in the previous comment -- "link./" mount point throwing IndexOutOfBoundsException.

> 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: 2.0.0-alpha
>            Reporter: Eli Collins
>            Assignee: Manoj Govindassamy
>
> 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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