Solved it, had an whitespace at the end of the path ;) /A
-----Original Message----- From: Sebastian Schelter [mailto:[email protected]] Sent: Thursday, November 18, 2010 10:25 AM To: [email protected] Subject: Re: org.apache.mahout.cf.taste.hadoop.item.RecommenderJob Hi Alan, can you try to specify the full path to the input directory? You should also be able to omit the full classname and use bin/mahout recommenditembased instead. You could also try to manually start the hadoop job like this: hadoop jar<path_to_job-jar> org.apache.mahout.cf.taste.hadoop.item.RecommenderJob --output useroutput -n 10 --usersFile users_test.txt -s SIMILARITY_PEARSON_CORRELATION --input userdata/ --sebastian On 18.11.2010 11:16, Alan Said wrote: > Hi all, > While trying to run the example from > https://cwiki.apache.org/confluence/display/MAHOUT/Itembased+Collaborative+Filtering > > With the following command > bin/mahout org.apache.mahout.cf.taste.hadoop.item.RecommenderJob --output > useroutput -n 10 --usersFile users_test.txt -s SIMILARITY_PEARSON_CORRELATION > --input userdata/ > > I keep getting this error: > Exception in thread "main" > org.apache.hadoop.mapreduce.lib.input.InvalidInputException: Input path does > not exist: userdata/ > > I've tried all kinds of path combinations, still same error. > > Another weird thing is if I put --input userdata/ as the first argument I get > Unexpected usage:<command> [Generic Options] [Job-Specific Options] > > I'm obviously missing something, so any help would be appreciated. > > /Alan >
