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From Vasiliki Kalavri <vasilikikala...@gmail.com>
Subject Re: Graph with stream of updates
Date Fri, 26 Feb 2016 14:07:10 GMT
Hi Ankur,

you can have custom state in your Flink operators, including a graph. There
is no graph state abstraction provided at the moment, but it shouldn't be
too hard for you to implement your own.
If your use-case only requires processing edge additions only, then you
might want to take a look into gelly-stream [1]. Is it a single-pass graph
streaming API, processing edge additions, and operating on graph summaries.

Cheers,
-Vasia.

[1]: https://github.com/vasia/gelly-streaming

On 26 February 2016 at 14:59, Ankur Sharma <ankur@stud.uni-saarland.de>
wrote:

> Hello,
>
> Thanks for reply.
>
> I want to create a graph from stream and query it. You got it right.
>
> Stream may be edges that are getting added or removed from the graph.
>
> Is there a way to create a empty global graph that can be transformed
> using a stream of updates?
>
> Best,
> *Ankur Sharma*
> *3.15 E1.1 Universität des Saarlandes*
> *66123, Saarbrücken Germany*
> *Email: ankur.sharma@mpi-inf.mpg.de <ankur.sharma@mpi-inf.mpg.de> *
> *            ankur@stud.uni-saarland.de <ankur@stud.uni-saarland.de>*
>
> On 26 Feb 2016, at 14:55, Robert Metzger <rmetzger@apache.org> wrote:
>
> Hi Ankur,
>
> Can you provide a bit more information on what you are trying to achieve?
>
> Do you want to keep a graph build from an stream of events within Flink
> and query that?
> Or you you want to change the dataflow graph of Flink while a job is
> running?
>
> Regards,
> Robert
>
>
> On Thu, Feb 25, 2016 at 11:19 PM, Ankur Sharma <ankur@stud.uni-saarland.de
> > wrote:
>
>> Hello,
>>
>> Is it possible to create and update graph with streaming edge and vertex
>> data in flink?
>>
>> Best,
>> *Ankur Sharma*
>> *3.15 E1.1 Universität des Saarlandes*
>> *66123, Saarbrücken Germany*
>> *Email: ankur.sharma@mpi-inf.mpg.de <ankur.sharma@mpi-inf.mpg.de> *
>> *            ankur@stud.uni-saarland.de <ankur@stud.uni-saarland.de>*
>>
>>
>
>

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