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https://issues.apache.org/jira/browse/HADOOP-13840?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15703919#comment-15703919
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Manoj Govindassamy edited comment on HADOOP-13840 at 11/29/16 2:23 AM:
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Attached v0 patch to address the following
1. Made {{ViewFileSystem#getUsed()}} to throw an exception when the SlashRoot
is not supported or not configured.
2. Test to validate getUsed() returning same space usage numbers when accessed
via ViewFileSystem and the target FileSystem.
[~andrew.wang], can you please review the patch ?
was (Author: manojg):
Attached v0 patch to address the following
1. Made {{ViewFileSystem#getUsed()}} to throw an exception when the SlashRoot
is not supported or not configured.
2. Test to validate getUsed() returning same space usage numbers when accessed
via ViewFileSystem and the target FileSystem.
> Implement getUsed() for ViewFileSystem
> --------------------------------------
>
> Key: HADOOP-13840
> URL: https://issues.apache.org/jira/browse/HADOOP-13840
> Project: Hadoop Common
> Issue Type: Task
> Components: viewfs
> Affects Versions: 3.0.0-alpha1
> Reporter: Manoj Govindassamy
> Assignee: Manoj Govindassamy
> Attachments: HADOOP-13840.01.patch
>
>
> ViewFileSystem doesn't override {{FileSystem#getUSed()}}. So, when file
> system used space is queried for slash root "/" paths, the default
> implementations tries to run the {{getContentSummary}} which crashes on
> seeing unexpected mount points under slash.
> ViewFileSystem#getUsed() is not expected to collate all the space used from
> all the mount points configured under "/". Proposal is to avoid invoking
> FileSystem#getUsed() and throw NotInMountPointException until LinkMergeSlash
> is supported.
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