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https://issues.apache.org/jira/browse/GIRAPH-409?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13491101#comment-13491101
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Nitay Joffe commented on GIRAPH-409:
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cc [~aching] [~initialcontext]
> Refactor / cleanups
> -------------------
>
> Key: GIRAPH-409
> URL: https://issues.apache.org/jira/browse/GIRAPH-409
> Project: Giraph
> Issue Type: Improvement
> Reporter: Nitay Joffe
> Assignee: Nitay Joffe
> Priority: Minor
>
> Some general thoughts I've jotted down while going through the code. Writing
> them here to start tracking progress for them.
> 1. Refactor giraph.graph to giraph.master, giraph.worker. The whole
> giraph.graph package name is bad in general I think.
> 2. Cleanup giraph.utils. For example move timers stuff to giraph.time.
> 3. Change module names to be more maven-esque, that is something like
> giraph-root, giraph-core, giraph-formats.
> 4. Remove WorkerClientServer. Is this needed anymore?
> 5. Cleanup MasterThread#run: long convoluted method.
> 6. Cleanup BspService#process: lots of duplication. Use a vector of events or
> something.
> 7. Cleanup Vertex class: seems to me it has too many methods and should be a
> simpler interface (maybe even eventually an actual interface! not an abstract
> class). Add something like a Vertexes/Vertices class with helper methods that
> use can use.
> 8. {Master,Worker}Observer. Discussed elsewhere already. ALlow users to
> easily plug in code at various points in the system. Essentially a cleaner
> implementation of e.g. WorkerContext
> 9. Cleanup GraphMapper. I don't see why we even call a map() method seeing as
> we are overriding run(). We are clearly not particularly "mapreduce-y" so we
> should make it our entry point more clear than a map(). Also I think we
> should have something like a WorkerThread similar to MasterThread and clean
> up all of this to just creare whichever threads the node is assigned roles
> of.
> 10. Move examples and anything else not needed for a giraph library out into
> it's own package (like giraph-examples)?
> If someone +1s the ideas I'll work up some patches. Feel free to add other
> cleanup things here as well.
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