hi, i am testing the RecommenderJob. according to the v0.4 javadocs, it requires the format: userID,itemID[,preferencevalue]. i have a very simple input i want to test before running it on the real dataset. my toy data set is as simple as the following lines.
1,10 1,20 2,10 2,30 2,40 3,10 3,20 (user 1 likes item 10, user 1 likes item 20, and so on). i then run the job. hadoop jar mahout-core-0.4-job.jar org.apache.mahout.cf.taste.hadoop.item.RecommenderJob -Dmapred.input.dir=/input/toy/toydata.txt -Dmapred.output.dir=/output/toy01 however, when i look at the results in (part-r-0000), i see nothing. the file is blank. why is this happening? i am running this on cygwin. i can run the hadoop examples correctly. is there something that i am doing wrong?
