So far, I\'m aware of the Mars, though wha开发者_JS百科t about alternatives?At present, the easiest interface is provided by thrust::reduce.
After reading this and this paper, I decide开发者_JAVA技巧d I want to implement a distributed volume rendering setup for large datasets on MapReduce as my undergraduate thesis work. Is Hadoop a reason
I have a question about configuring Map/Side inner join for multiple mappers in Hadoop. Suppose I have two very large data sets A and B, I use the same partition and sort algorithm to split them into
I\'m having trouble wrapping my head around how map/reduce works in MongoDB. I have a collection with the fields: areacode, state, county, zip, city, lat, lon that lists every zip code in the US along
I would like to wr开发者_运维技巧ite multiple output files. How do I do this using Job instead of JobConf? an easy way to to create key based output file names
I am a newbie to Hadoop. I have managed to develop a simple Map/Reduce application that works fine in \'pseudo distributed mode\'.I want to test that in \'fully distributed mode\'. I have few question
In Hadoop \'grep\' example (tha开发者_开发问答t comes with the Hadoop package) what is the group parameter.Can you give me an example for that.Disclaimer: I haven\'t run this example and am pulling an
how to do a mysql query SELECT COUNT(DISTINCT ip), COUNT(DISTINCT开发者_如何学Go area) FROM visit_logs GROUP BY t_hour
I\'m working with the Mongodb native driver using a Map reduce function. Basically I have a mediaId as a key and want to count how many medias loaded and started per mediaId.
How can I use MapReduce in Ruby on Rails if I\'m using the MongoDB Ruby 开发者_开发百科driver?Define your map and reduce js functions as variables, and then something along these lines:
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