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Date: Mon, 19 Oct 2009 02:04:31 -0700 (PDT)
From: "Hyunsik Choi (JIRA)" <jira@apache.org>
To: hama-dev@incubator.apache.org
Subject: [jira] Commented: (HAMA-201) Design the storage structure for graph
 data
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    [ https://issues.apache.org/jira/browse/HAMA-201?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12767249#action_12767249 ] 

Hyunsik Choi commented on HAMA-201:
-----------------------------------

In order to complete the skeleton structure of the angrapa, first of all we need at least dummy components that constitute the angrapa. Among them, the storage structure is one of the most necessary components.

In terms of this point of view, It would be good that Initial storage structure is based on Hbase. Although Hbase will be not optimal to angrapa, Hbase satisfies most of the requirements, and the storage structure based on Hbase will be implemented relatively easier than others.

What do you think about that?

> Design the storage structure for graph data
> -------------------------------------------
>
>                 Key: HAMA-201
>                 URL: https://issues.apache.org/jira/browse/HAMA-201
>             Project: Hama
>          Issue Type: New Feature
>          Components: graph
>    Affects Versions: 0.2.0
>            Reporter: Hyunsik Choi
>            Assignee: Hyunsik Choi
>             Fix For: 0.2.0
>
>
> For graph package, we need a novel storage structure in response to our main objective. It can be a file structure or a storage system like Hbase.
> Its requirements are as follows:
>  * It has to support random access to any vertex by a given key.
>  * The key will be an array of bytes.
>  * A vertex or edge has a label value composed of an array of bytes.
>  * The maximum degree of a vertex can be almost infinity.

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