I am trying to enable bad input skipping on my Amazon Elastic MapReduce jobs. I am following the wonderful recipe described here: http://devblog.factual.com/practical-hadoop-streaming-dealing-with...

I am trying to parse data from commoncrawl.org using hadoop streaming. I set up a local hadoop to test my code, and have a simple Ruby mapper which uses a streaming ARCfile reader. When I invoke my...

I have tried a simple Map/Reduce task using Amazon Elastic MapReduce and it took just 3 mins to complete the task. Is it possible to re-use the same instance to run another task. Even though I ha...

I've noticed that neither mrjob nor boto supports a Python interface to submit and run Hive jobs on Amazon Elastic MapReduce (EMR). Are there any other Python client libraries that supports running...

When files are transferred to nodes using the distributed cache mechanism in a Hadoop streaming job, does the system delete these files after a job is completed? If they are deleted, which i presum...