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https://issues.apache.org/jira/browse/HAMA-767?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Anastasis Andronidis updated HAMA-767:
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Attachment: HAMA-767-addAndRemove-v1.patch
I added remove functionality. I also altered interfaces of VertexInfo and
VertexInterface.
In ListVerticesInfo I implemented a remove method which is using binary search
on vertexes. On the other hand, I didn't implement the same method in
DiskVerticesInfo, because it was a little bit complex (I will try to implement
it later).
I have some questions though:
1) I have some concerns about the partitioner. At this point, the partitioner
will always return to me correct peer. But the case is not the same if we have
a random or probabilistic partitioner. Should I keep in mind a use case like
that?
2) When I delete a vertex, should I return their value and edges? (To do that
the deleted vertex will have to send a message on the next super step, and I
believe that will be confusing).
3) On ListVertecesInfo interface, we will have to force implement a remove
method. I want to also enforce this method to return an exception when the
vertex is not there. Which is the exception that will match the best? Currently
I'm using UnsupportedOperationException.
> [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
> Assignee: Anastasis Andronidis
> Labels: dynamic, graph, gsoc, gsoc2013, mentoring
> Fix For: 0.6.3
>
> Attachments: HAMA-767-addAndRemove-v1.patch,
> HAMA-767-addition-v1.patch
>
>
> Implement addVertex and removeVertex methods for incremental graph support on
> Graph API.
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