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https://issues.apache.org/jira/browse/HAMA-196?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12918770#action_12918770
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Edward J. Yoon commented on HAMA-196:
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Let's change the status as "won't fix".
WDYT?
> Design the input/output data types
> ----------------------------------
>
> Key: HAMA-196
> URL: https://issues.apache.org/jira/browse/HAMA-196
> Project: Hama
> Issue Type: New Feature
> Components: graph
> Reporter: Hyunsik Choi
> Assignee: Hyunsik Choi
> Attachments: HAMA-196.patch
>
>
> Like MapReduce, Angrapa also need input/output data types like key/value
> pairs of MapReduce. In Angrapa, programs will handle all of data as vertices,
> each of which has a key and an adjacent list. Thus, I think it would be good
> that a key is an array of bytes (i.e., byte [] ) and an adjacent list is
> keys.
> In addition, most of graph algorithms focus on graph features and labels of
> either vertices or edges. They may not need keys. Therefore, RecordReader
> would need only VERTEX; that is RecordReader<VERTEX>.
> What do you think about?
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