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https://issues.apache.org/jira/browse/HDFS-4611?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tsz Wo (Nicholas), SZE updated HDFS-4611:
-----------------------------------------

    Attachment: h4611_20130330b.patch

> The patch requires HDFS-4339. Otherwise, the reference map won't work.

Actually, we may generate reference id during FSImage serialization so that it 
does not require inode id.  Here is a new patch:

h4611_20130330b.patch
                
> Snapshot: Update FSImage for INodeReference
> -------------------------------------------
>
>                 Key: HDFS-4611
>                 URL: https://issues.apache.org/jira/browse/HDFS-4611
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: namenode
>            Reporter: Tsz Wo (Nicholas), SZE
>            Assignee: Tsz Wo (Nicholas), SZE
>         Attachments: h4611_20130320.patch, h4611_20130325.patch, 
> h4611_20130327.patch, h4611_20130328.patch, h4611_20130330b.patch, 
> h4611_20130330.patch
>
>
> INodeReference is added for supporting rename with snapshot.  FSImage needs 
> to be changed to store INodeReference.

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