I\'m us开发者_开发知识库ing Amazon\'s elastic map reduce. I have log files that look something like this
I\'ve been working on this for a long time, and I feel very worn out; I\'m hoping for an [obvious?] insight from SO community that might get my pet project back on the move, so I can stop kicking myse
We have a custom input format extending the FileInputFormat, which generates a separate split for each line in the input file. This file provides a host name in which the mapper handling this line sho
Dose anyone know what\'s wrong with hbase? I am using vm image of cloudera distribution for hadoop, previously it was working fine but now giving me this error after every second when i try to list al
I want to use multiple files (actually 2 files) as a input files. they are having same patterns of data.
When files are transferred to nodes using the distributed ca开发者_如何转开发che mechanism in a Hadoop streaming job, does the system delete these files after a job is completed? If they are deleted,
The Namenode in the Hadoop architecture is a single point of failure. How do people who have large Hadoop clusters cope with this pr开发者_如何学Gooblem?.
From this guide, I have successfully run the sample exercise. But on running my mapreduce job, I am getting the following error
What exactly is the zookeeper quorum setti开发者_如何学JAVAng in hbase-site.xml?As described in hbase-default.xml, here\'s the setting:
I am trying to use Amazon Elastic Map Reduce to run a series of simulations of several million cases. This is an Rscript streaming job with no reducer. I am using the Identity Reducer in my EMR call -
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