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My map task completes successfully and I can see the application logs, but reducer stays in pending… Read more Hadoop-streaming : Reduce Task In Pending State Says "no Room For Reduce Task."

In my MapReduce jobs, I pass a product name to the Mapper as a string argument. The Mapper.py scrip… Read more Mapreduce How To Allow Mapper To Read An Xml File For Lookup

Caveat: I am new to Google App Engine and Python, but I have managed to implement a PageRank algori… Read more I Would Like To Chain Multiple Mapreduce Jobs In Google App Engine In Python

After talking with a friend of mine from Google, I'd like to implement some kind of Job/Worker … Read more Should I Learn/use Mapreduce, Or Some Other Type Of Parallelization For This Task?

I have worked on Hadoop MR for quite some time and I have created and used custom(extension) Writab… Read more Create Custom Writable Key/value Type In Python For Hadoop Map Reduce?

I'm trying to wrap my brain around this but it's not flexible enough. In my Python script I… Read more Flatten A Dictionary Of Dictionaries (2 Levels Deep) Of Lists