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From "Avery Ching (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (GIRAPH-29) Implement TextVertexInputFormat for text-format graph data
Date Sat, 10 Sep 2011 20:35:09 GMT

    [ https://issues.apache.org/jira/browse/GIRAPH-29?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13102142#comment-13102142
] 

Avery Ching commented on GIRAPH-29:
-----------------------------------

No problem, the real issue is that there is little documentation (my fault).

Contrary to MapReduce (map tasks = input splits), workers need not equal input split from
VertexInputFormat.  Workers in Giraph process InputSplits as fast as possible and may process
0 or more InputSplits.

> Implement TextVertexInputFormat for text-format graph data
> ----------------------------------------------------------
>
>                 Key: GIRAPH-29
>                 URL: https://issues.apache.org/jira/browse/GIRAPH-29
>             Project: Giraph
>          Issue Type: New Feature
>          Components: bsp
>            Reporter: Hyunsik Choi
>            Assignee: Hyunsik Choi
>            Priority: Minor
>             Fix For: 0.70.0
>
>
> Supporting text-format graph data would be nice. It is helpful for developing graph algorithms
and debugging because text-format graph data are human-readable and enable users to easily
write sample data sets. Furthermore, text-format data are exchangeable regardless of operating
systems or programming languages.
> So, we need a basic InputFormat to help users develop user-defined InputFormat classes
to deal text-represented graph data sets.

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