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MapReduce, mail # user - Re: Query mongodb


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shashwat shriparv 2013-01-16, 14:48
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Re: Query mongodb
Mohammad Tariq 2013-01-16, 14:47
MapReduce framework tries its best to run the jobs on the nodes
where  data is located. It is its fundamental nature. You don't have
to do anything extra.

*I am sorry if I misunderstood the question.
Warm Regards,
Tariq
https://mtariq.jux.com/
cloudfront.blogspot.com
On Wed, Jan 16, 2013 at 8:10 PM, John Lilley <[EMAIL PROTECTED]>wrote:

>  How does one schedule mappers to read MongoDB or HBase in a
> data-locality-aware fashion?****
>
> -john****
>
> ** **
>
> *From:* Mohammad Tariq [mailto:[EMAIL PROTECTED]]
> *Sent:* Wednesday, January 16, 2013 3:29 AM
> *To:* [EMAIL PROTECTED]
> *Subject:* Re: Query mongodb****
>
> ** **
>
> Yes. You can use MongoDB-Hadoop adapter to achieve that. Through this
> adapter you can pull the data, process it and push it back to your MongoDB
> backed datastore by writing MR jobs.****
>
> ** **
>
> It is also 100% possible to query Hbase or JSON files, or anything else
> for that matter, stored in HDFS.****
>
>
> ****
>
> Warm Regards,****
>
> Tariq****
>
> https://mtariq.jux.com/****
>
> cloudfront.blogspot.com****
>
> ** **
>
> On Wed, Jan 16, 2013 at 3:50 PM, Panshul Whisper <[EMAIL PROTECTED]>
> wrote:****
>
> Hello,
> Is it possible or how is it possible to query mongodb directly from hadoop.
> ****
>
> Or is it possible to query hbase or json files stored in hdfs in a similar
> way as we can query the json documents in mongodb.****
>
> Suggestions please.****
>
> Thank you.
> Regards,
> Panshul.****
>
> ** **
>
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John Lilley 2013-01-16, 14:56