The Apache Hadoop software library is a framework that allows for the distributed processing of large data sets across clusters of computers using simple programming models.

learn more… | top users | synonyms

1
vote
0answers
59 views

Improve communication between controller and trackers in a Twitter fetcher tool using RabbitMQ or Apache Flume

I've been working for a time with some researches developing a tool to fetch tweets from Twitter and process them in some way. The first prototype "worked" but became a pain as we used sockets to ...
0
votes
0answers
42 views

Map-Reduce sorting: before or after partitioning?

At some point, the (key,value) outputs of the mappers are sorted by key.As I understand, this sorting doesnt take place locally on the node of the mapper.So I can think of two possibilites: 1) does ...