I am trying to run a hadoop-streaming python job. bin/hadoop jar contrib/streaming/hadoop-0.20.1-streaming.jar
I\'m trying开发者_运维技巧 to see if a specific algorithm can be translated to the kind of map-reduce index RavenDB/CouchDB uses, ie, \"pre-computed\" map-reduce (which means the indexes are refreshed
Based on a great answer to my previous question, I\'ve partially solved a problem I\'m having with CouchDB.
After talking with a friend of mine from Google, I\'d like to implement some kind of Job/Worker model for updating my dataset.
I 开发者_JS百科have a mapper that outputs key and value , which is sorted and piped into reducer.py ,
I am wondering if it is possible to make a REST request from within a Map-Reduce or system.js function. I would like to be able to call an external service, and from the returned JSON results, take so
I wrote a simple map reduce job that would read in data from the DFS and run a simple algorithm on it. When trying to debug it I decided to simply make the mappers output a single set of keys and valu
I\'m looking for an example of how to implement and use Map-Reduce within the Ra开发者_高级运维venDB .NET Client.
I have a collection of md5 in mongodb. I\'d like to find all duplicates. The md5 column is indexed. Do you know any fast way to do that using map reduce.
I have a mongodb collection that has documents like the ones below: [ { :event => {:type => \'comment_created\'},
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