I am trying to run a hadoop-streaming python job. bin/hadoop jar contrib/streaming/hadoop-0.20.1-streaming.jar
I\'d like to generate some data using a mapreduce.I\'d like to invoke the job with one parameter N, and get Map called with each integer from 1 to N, once.
I am trying to train a Naive Bayes classifier with positive/negative words extracting from a sentiment. example:
I 开发者_JS百科have a mapper that outputs key and value , which is sorted and piped into reducer.py ,
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
Can I use a MapReduce framework to create an index and somehow add it to a distributed Solr? I have a burst of information (logfiles and documents) that will be transported over the internet and stor
In Hadoop API ver. 0.20 and above the Context object was introduced instead JobConf. I need to find out using Context object:
I am trying to run the pig tutorial scripts in Ubuntu for two days, however I can not manage to make pig connect to hadoop file system. It is still saying: \" Connecting to hadoop file system at: file
I want to chain 2 Map/Reduc开发者_如何学编程e jobs. I am trying to use JobControl to achieve the same. My problem is -
Recently, I started working on HBase (one of the column-oriented databases). While going through the source code, one question keeps popping in my head. Thought of asking this.
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