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
