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https://issues.apache.org/jira/browse/HAMA-767?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13689920#comment-13689920
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Edward J. Yoon commented on HAMA-767:
-------------------------------------

Here's my suggestion. First of all, define the interface of graph update 
operations, like:

{code}
/* Graph update operations */

  public void addVertex(...) throws IOException;

  public void deleteVertex(...) throws IOException;

  public void addEdges(...) throws IOException;
{code}

And, create a test scenario for these functions. I guess, a example of merging 
multi-clusters into a single cluster might be a good idea. Finally implement 
all override empty methods.
                
> [GSoC 2013] Vertex addition and removal
> ---------------------------------------
>
>                 Key: HAMA-767
>                 URL: https://issues.apache.org/jira/browse/HAMA-767
>             Project: Hama
>          Issue Type: New Feature
>          Components: examples, graph
>    Affects Versions: 0.6.1
>            Reporter: Anastasis Andronidis
>              Labels: dynamic, graph, gsoc, gsoc2013, mentoring
>         Attachments: HAMA-767-addition-v1.patch
>
>
> Implement addVertex and removeVertex methods for incremental graph support on 
> Graph API.

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