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From "Aaron T. Myers (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-5709) Improve NameNode upgrade with existing reserved paths and path components
Date Wed, 05 Feb 2014 07:16:10 GMT

     [ https://issues.apache.org/jira/browse/HDFS-5709?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Aaron T. Myers updated HDFS-5709:
---------------------------------

       Resolution: Fixed
    Fix Version/s: 2.4.0
     Hadoop Flags: Reviewed
           Status: Resolved  (was: Patch Available)

I've just committed this to trunk and branch-2.

Thanks a lot for the contribution, Andrew. Thanks also to Jing and Suresh for the reviews
and discussion.

> Improve NameNode upgrade with existing reserved paths and path components
> -------------------------------------------------------------------------
>
>                 Key: HDFS-5709
>                 URL: https://issues.apache.org/jira/browse/HDFS-5709
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: namenode
>    Affects Versions: 3.0.0, 2.2.0
>            Reporter: Andrew Wang
>            Assignee: Andrew Wang
>              Labels: snapshots, upgrade
>             Fix For: 2.4.0
>
>         Attachments: hdfs-5709-1.patch, hdfs-5709-2.patch, hdfs-5709-3.patch, hdfs-5709-4.patch,
hdfs-5709-5.patch, hdfs-5709-6.patch, hdfs-5709-7.patch
>
>
> Right now in trunk, upgrade fails messily if the old fsimage or edits refer to a directory
named ".snapshot". We should at least print a better error message (which I believe was the
original intention in HDFS-4666), and [~atm] proposed automatically renaming these files and
directories.



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