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From "Binglin Chang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-5066) Inode tree with snapshot information visualization
Date Tue, 27 Aug 2013 03:54:54 GMT

    [ https://issues.apache.org/jira/browse/HDFS-5066?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13750939#comment-13750939
] 

Binglin Chang commented on HDFS-5066:
-------------------------------------

bq. Is it possible to remove the buildNodeSet method and the nodeset map, since inode Id,
class name, and localName can all be identified from a given inode?

I am afraid INodeId, className and localName can't provide uniqueness, many WithName can have
same localName, I guess if we treat different class type with different encoding(WithCount_inodeid,
WithName_inodeid_snapshotid, DstRef_inodeid), uniqueness is possible, but it looks a little
strange.



                
> Inode tree with snapshot information visualization 
> ---------------------------------------------------
>
>                 Key: HDFS-5066
>                 URL: https://issues.apache.org/jira/browse/HDFS-5066
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>            Reporter: Binglin Chang
>            Assignee: Binglin Chang
>            Priority: Minor
>         Attachments: HDFS-5066.v1.patch, visnap.png
>
>
> It would be nice to be able to visualize snapshot information, in order to ease the understanding
of related data structures. We can generate graph from in memory inode links.

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