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https://issues.apache.org/jira/browse/GIRAPH-91?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13151603#comment-13151603
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Avery Ching commented on GIRAPH-91:
-----------------------------------

By the way, rb allows you to download the diff directly (so you don't have to 
worry about them staying in sync).

https://reviews.apache.org/r/2868/diff/raw/
                
> Large-memory improvements (Memory reduced vertex implementation, fast 
> failure, added settings) 
> -----------------------------------------------------------------------------------------------
>
>                 Key: GIRAPH-91
>                 URL: https://issues.apache.org/jira/browse/GIRAPH-91
>             Project: Giraph
>          Issue Type: Improvement
>            Reporter: Avery Ching
>            Assignee: Avery Ching
>         Attachments: GIRAPH-91.diff
>
>
> Current vertex implementation uses a HashMap for storing the edges, which is 
> quite memory heavy for large graphs.  The default settings in Giraph need to 
> be improved for large graphs and heaps of >20G.

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