I have a mapreduce issue with couchdb (both functions shown below): when I run it with grouplevel = 2 (exact) I get accurate output:
I need to: 1. Analyze big files of http logs I\'m thinking in using mapreduce but I\'m not sure where to host it. Shall I use App Engine Mapper or EC2+MapReduce or simply use it in my VPS?
I have a database in the following syntax: {_id:\'342\', values:{ A: \'432\', B: \'asdf\', C: \'23\', D: \'gg\'}}
I am working with Amazons MapReduce Web Service for an university project. In order to use the data for MapReduce, I need to dump them from a relational database (AWS RDS) into S3. After MapReduce fin
Is there an efficient way to delete multiple rows in HBase or does my use case smell like not suitable for HBase?
What is the difference between hadoop distcp and hadoop distcp -update Both of them would do the same work with only slight difference in how we call them. None o开发者_运维百科f them overwrite
Let\'s say you have divided your work for the map phase of map/reduce and mapping is running.Now, each unit of work takes about 1 minute.Let\'s say that you need to stop processing.How would you persi
I am trying to run a simple example using a binary executable and the cached archive and it does not seem to be working:开发者_运维问答
I\'m us开发者_开发知识库ing Amazon\'s elastic map reduce. I have log files that look something like this
I\'ve been working on this for a long time, and I feel very worn out; I\'m hoping for an [obvious?] insight from SO community that might get my pet project back on the move, so I can stop kicking myse
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