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Showing posts with the label Mapreduce
Hadoop: How To Include Third Party Library In Python Mapreduce

Hadoop: How To Include Third Party Library In Python Mapreduce

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I am writing MapReduce job in Python, and want to use some third libraries like chardet. I konw tha… Read more Hadoop: How To Include Third Party Library In Python Mapreduce
Hadoop Streaming: Where Are Application Logs?

Hadoop Streaming: Where Are Application Logs?

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My question is similar to : hadoop streaming: how to see application logs? (The link in the answer … Read more Hadoop Streaming: Where Are Application Logs?
Hadoop-streaming : Reduce Task In Pending State Says "no Room For Reduce Task."

Hadoop-streaming : Reduce Task In Pending State Says "no Room For Reduce Task."

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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."
How To Get The Reducer To Emit Only Duplicates

How To Get The Reducer To Emit Only Duplicates

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I have a Mapper that is going through lots of data and emitting ID numbers as keys with the value o… Read more How To Get The Reducer To Emit Only Duplicates
Appengine Mapreduce Ndb, Deadlineexceedederror

Appengine Mapreduce Ndb, Deadlineexceedederror

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we're trying to heavily use MapReduce in our project. Now we have this problem, there is a lot… Read more Appengine Mapreduce Ndb, Deadlineexceedederror