Let\'s say I have a collection with documents that looks like this (just simplified example, but it should show the scheme):
I have an issue with data I want to aggregate incrementally. I have devices (a lot, stored in the device collection) that emits measures (NOT regularly) that are stored in the db in the record collec
I\'m getting this error... \"ImportError: Could not find \'input_readers\' on path \'map reduce\'\" when trying to Run my map reduce job via the http://localhost:8080/mapreduce launcher page.
I have seen Ganglia monitoring being implemented and analyzed on grid computing projects, but haven\'t read about any procedure for Amazon Elastic Mapreduce programs. Ganglia has a lot of metrics, but
I am migrating an application from mySQL to couchDB. (Okay, Please dont pass judgements on this). There is a function with signature
Here is the scenario Reducer1 / Mapper - - Reducer2 \\ ReducerN In reducer I want to write the data on different files, lets say the reducer looks like
How or where do I specify the output_writer filename and content type for a GAE mapreduce job? This configuration below is working fine for me, but it creates a new blobstore entry with a new filename
This is a continuation of the project from this post. I have the following model: public class Product {
I\'m using org.apache.hadoop.mapreduce.Job to create/submit/run a MR Job (Cloudera3, 20.2), and after it completes, in a separate application, I\'m trying to get the Job to grab the counters to do som
I have are requirement to chain a map redu开发者_如何学Cce job like this using map reduce chaining. [Map --> Reduce --> Map --> Reduce -- > Map --> Map]. Looking at Javadocs of ChainReducer I get the
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