I am trying to build a collaborative filtering based Recommendation System as part of an academic project. I think Mahout project has a lot of potential and I want to use it.
Every thing run well in Standalone mode and when going to the pseudo-distributed mode, the HDFS works well, I can put files to HDFS and browse it. And I also checked that there is one DataNode in the
I am doing some text processing using hadoop map-reduce jobs. My job is 99.2% complete and stuck on last map job.
I\'ma Hadoop newbie. I have been able to successfully run the WordCount example. I would like to modify this example such that my output is sorted in ascending order of count. I\'m unable to figure
I want to allow people to put in simple text search terms, run a pig job (if that\'s best? it\'s what I know best) and output the res开发者_开发技巧ults (the tsv file results?) so I can show them in a
I\'ve just finished installing Hadoop 0.20.2 under Cygwin on Windows 7 with Eclipse Helios (3.6). Hadoop is now fully started, and I\'m trying to run a test application within a newly created MapReduc
We have a box that has terabytes of data (10-20TB) each day, where each file on the drive is anywhere from megabytes to gigabytes.
I\'ve been following Hadoop for a while, it seems like a great technology. The Map/Reduce, Clustering it\'s just good stuff. But I haven\'t found any article regarding the use of Hadoop with SQL Serve
Hi Text manipulation in Reduce phase seems not working correctly. I suspect problem could be in my code rather then hadoop itself but you never know...
开发者_运维百科I just started with Hadoop. I wrote a sample hadoop code as was written in the book. But still, during the time of execution exceptions arise. The snippet of what I get :
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