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From Harsha HN <99harsha.h....@gmail.com>
Subject Re: Adjacency List representation in Spark
Date Thu, 18 Sep 2014 14:42:32 GMT
Hi Andrew,

The only reason that I avoided GraphX approach is that I didnt see any
explanation on Java side nor API documentation on Java.
Do you have any code piece of using GraphX API in JAVA?

Thanks,
Harsha

On Wed, Sep 17, 2014 at 10:44 PM, Andrew Ash <andrew@andrewash.com> wrote:

> Hi Harsha,
>
> You could look through the GraphX source to see the approach taken there
> for ideas in your own.  I'd recommend starting at
> https://github.com/apache/spark/blob/master/graphx/src/main/scala/org/apache/spark/graphx/Graph.scala#L385
> to see the storage technique.
>
> Why do you want to avoid using GraphX?
>
> Good luck!
> Andrew
>
> On Wed, Sep 17, 2014 at 6:43 AM, Harsha HN <99harsha.h.n99@gmail.com>
> wrote:
>
>> Hello
>>
>> We are building an adjacency list to represent a graph. Vertexes, Edges
>> and Weights for the same has been extracted from hdfs files by a Spark job.
>> Further we expect size of the adjacency list(Hash Map) could grow over
>> 20Gigs.
>> How can we represent this in RDD, so that it will distributed in nature?
>>
>> Basically we are trying to fit HashMap(Adjacency List) into Spark RDD. Is
>> there any other way other than GraphX?
>>
>> Thanks and Regards,
>> Harsha
>>
>
>

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