Re: demo spark-itemsimilarity; empty output

2015-03-26 Thread Pat Ferrel
Hmm I just ran into this, thanks for the research. This may cause problems on cluster machines unless it is Mac specific so putting into /usr/lib/java may need to be on all nodes. Not sure that is the best solution. Let me know if you run into this on a ’nix type cluster. On Mar 19, 2015, at

Re: demo spark-itemsimilarity; empty output

2015-03-19 Thread Jeff Isenhart
OK, fixed the snappy issue (that happens on Mac/jre 1.7) by downloading  https://wso2.org/jira/secure/attachment/32013/libsnappyjava.jnilib and placing the file in /usr/lib/java/ Now, when I run ./bin/mahout spark-itemsimilarity -i demoItems.csv -o output4 -fc 1 -ic 2 --filter1 purchase

Re: demo spark-itemsimilarity; empty output

2015-03-18 Thread Pat Ferrel
Looks like you don’t have the native snappy code installed correctly. That’s a Hadoop thing I think, for fast compressed serialization methinks. On Mar 18, 2015, at 4:08 PM, Jeff Isenhart jeffi...@yahoo.com.INVALID wrote: Thanks for the input Pat. I ran the following command ./bin/mahout

Re: demo spark-itemsimilarity; empty output

2015-03-18 Thread Jeff Isenhart
Thanks for the input Pat. I ran the following command  ./bin/mahout spark-itemsimilarity -i demoItems.csv -o output4 -fc 1 -ic 2 --filter1 purchase --filter2 view on data u1,purchase,iphoneu1,purchase,ipadu2,purchase,nexus and now seeing this error java.lang.reflect.InvocationTargetException at

Re: demo spark-itemsimilarity; empty output

2015-03-12 Thread Pat Ferrel
spark-itemsimilarity takes tuples user-id,item-id You are looking at the collected input as a matrix. it would be collected from something of the form: u1,item1 u1,item10 u1,item500 u2,item2 u2,item500 ... On Mar 11, 2015, at 8:24 PM, Jeff Isenhart jeffi...@yahoo.com.INVALID wrote: I am

Re: demo spark-itemsimilarity; empty output

2015-03-12 Thread Pat Ferrel
There are many ways to structure the input. The spark-itemsimilarity driver can take only two actions, though the internal code, if you want to use it as a library, will take any number. The CLI driver can optionally take input of the for you mention but will extract a primary and single

Re: demo spark-itemsimilarity; empty output

2015-03-12 Thread Jeff Isenhart
preHmmm, then what about the How to Use Multiple Actions section that states  For a mixed action log of the form:u1,purchase,iphone u1,purchase,ipad u2,purchase,nexus/pre On Thursday, March 12, 2015 9:39 AM, Pat Ferrel p...@occamsmachete.com wrote: spark-itemsimilarity takes tuples

demo spark-itemsimilarity; empty output

2015-03-11 Thread Jeff Isenhart
I am trying to run the example found here: http://mahout.apache.org/users/recommender/intro-cooccurrence-spark.html The data (demoItems.csv added to hdfs) is just copied from the example: u1,purchase,iphoneu1,purchase,ipadu2,purchase,nexus.. But when I run  mahout spark-itemsimilarity -i