MapReduce is an algorithm for processing huge datasets on certain kinds of distributable problems using a large number of nodes
In Hadoop when do reduce tasks start? Do they start after a certain percentage (threshold) of mappers complete? If so, …
hadoop mapreduce reduceFrom this guide, I have successfully run the sample exercise. But on running my mapreduce job, I am getting the …
python hadoop mapreduceCan any one explain me how secondary sorting works in hadoop ? Why must one use GroupingComparator and how does it …
hadoop mapreduce hadoop-partitioningGoogle's Dremel is described here. What's the difference between Dremel and Mapreduce?
hadoop mapreduce google-bigquery abstractionI have been trying to call a mapreduce job from a simple java program in the same package.. I tried …
java hadoop mapreduceI am going through hadoop definitive guide, where it clearly explains about input splits. It goes like Input splits doesn’…
hadoop mapreduceMy map tasks need some configuration data, which I would like to distribute via the Distributed Cache. The Hadoop MapReduce …
java hadoop mapreduceI'm a novice on hadoop, I'm getting familiar to the style of map-reduce programing but now I faced a problem : …
hadoop mapreduceCan anyone point me at a simple, open-source Map/Reduce framework/API for Java? There doesn't seem to much evidence …
java mapreduce