MapReduce is an algorithm for processing huge datasets on certain kinds of distributable problems using a large number of nodes
I am having a strange problem with a Hadoop Map/Reduce job. The job submits correctly, runs, but produces incorrect/…
java hadoop mapreduce hortonworks-data-platformI am in scenario where I have two mapreduce jobs. I am more comfortable with python and planning to use …
python hadoop mapreduce hadoop-pluginsSo i'm new with mongodb and mapreduce in general and came across this "quirk" (or atleast in my mind a …
mongodb mapreduce pymongoI am creating a program to analyze PDF, DOC and DOCX files. These files are stored in HDFS. When I …
java hadoop mapreduce distributed-systemI'm trying to pass a small file to a job I'm running using the GenericOptionsParser's -files flag: $ hadoop jar MyJob.…
hadoop mapreduce distributed-cachei have successfully installed ubuntu 12.04 and hadoop 2.4.0. after entering the jps command i find the output as below 4135 jps 2582 SeconadaryNameNode 3143 …
ubuntu hadoop mapreduce hdfs word-countI am new to parallel computing and just starting to try out MPI and Hadoop+MapReduce on Amazon AWS. But …
hadoop parallel-processing mapreduce mpiI just started working with MapReduce, and I'm running into a weird bug that I haven't been able to answer …
hadoop mapreduce iteration nosuchmethoderrorI have a MapReduce job defined in main.py, which imports the lib module from lib.py. I use Hadoop …
python mapreduce hadoop-streamingI ran a MapReduce program using the command hadoop jar <jar> [mainClass] path/to/input path/to/output. …
hadoop mapreduce runtime-error eof ioexception