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https://issues.apache.org/jira/browse/HAMA-227?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12776465#action_12776465
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Edward J. Yoon commented on HAMA-227:
-------------------------------------

Yes. Since some table could be used for storing the graph data or something, we 
need to manage the properties of each tables.
IMO, few information will be enough to clarify them. e.g., date, update 
history, owner, table type, size.., etc.

FYI, the matrix table has a column family for attributes. For example, 

 * isZero()
 * isOne()
 * isScalar()
 * isSymmetric()
 * isInvertible()
 * isNilpotent()

above-like APIs will be stored to attributes column family of matrix table. 

> Maintaining hama table information in hama.admin.table.
> -------------------------------------------------------
>
>                 Key: HAMA-227
>                 URL: https://issues.apache.org/jira/browse/HAMA-227
>             Project: Hama
>          Issue Type: New Feature
>            Reporter: Hyunsik Choi
>
> Now, hama has no feature to keep any information of matrix tables. It lead to 
> some inconvenience to manage matrix tables through org.apache.hama.HamaAdmin.
> Hence, I suggest hama.admin.table to keep information of matrix tables. For 
> this, we firstly should define a column family name and schema appropriate to 
> this purpose.
> What do you think about that?

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