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From Gustavo Enrique Salazar Torres <>
Subject Re: MySQL Table
Date Fri, 06 Sep 2013 10:51:27 GMT
Hi Bu:
Until the interface with Gora is available you could use Apache Sqoop to
import your mysql table into HDFS and then run your Giraph job.

Em 06/09/2013 04:43, "Claudio Martella" <>

> Hi Bu,
> no, currently we do not have a DBInputFormat. We have an open issue with a
> google summer of code student working on a GoraInputFormat, which supports
> also reading from RDBMs through Gora. However, if/when it will get it, it
> will not provide a rich semantic as DBInputFormat, e.g. you'll be able to
> only provide scan-like/range queries, instead of ANY query like
> DBInputFormat.
> I think that creating an DB[Vertex|Edge]InputFormat starting from the
> hadoop DBInputFormat should not be too hard and could prove to be a very
> useful contribution. If you think about providing an implementation, I can
> provide guidance.
> Best,
> Claudio
> On Fri, Sep 6, 2013 at 1:45 AM, Bu Xiao <> wrote:
>> Hi Girapher,
>>        I am currently working on algorithm that requires reading the
>> vertices from MySQL table and not from HDFS. I thought that there has to be
>> a way of reading data from SQL table since Giraph is built on top of
>> Hadoop. But I do not seem to figure this part out. Do you have a class
>> similar to the DBInputFormat in Hadoop? Thank you very much for your help.
> --
>    Claudio Martella

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