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From "Suresh Srinivas (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HDFS-677) Rename failure due to quota results in deletion of src directory
Date Fri, 09 Oct 2009 00:56:31 GMT

    [ https://issues.apache.org/jira/browse/HDFS-677?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12763772#action_12763772
] 

Suresh Srinivas commented on HDFS-677:
--------------------------------------

> This typically means that you want to prepare as much change on the side as possible
(without changing the state), and effect the state change in one atomic operation.
That is what I have captured in bullet 1. All the checks are done prior to removing node.
I do not anticipated any failure after that. But in case some exceptions happen, then the
src is restored back in a finally block.

> Rename failure due to quota results in deletion of src directory
> ----------------------------------------------------------------
>
>                 Key: HDFS-677
>                 URL: https://issues.apache.org/jira/browse/HDFS-677
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: name-node
>    Affects Versions: 0.20.1, 0.20.2, 0.21.0, 0.22.0
>            Reporter: Suresh Srinivas
>            Assignee: Suresh Srinivas
>            Priority: Blocker
>             Fix For: 0.20.2, 0.21.0, 0.22.0
>
>         Attachments: hdfs-677.8.patch
>
>
> Renaming src to destination where src has exceeded the quota to a dst without sufficent
quota fails. During this failure, src is deleted. 

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