I am using ubuntu 11.10.

I downloaded mahout_trunk using

"svn co http://svn.apache.org/repos/asf/mahout/trunk"

in directory /opt.
After that i use "mvn install" command.

i already put linked-simple-sorted.txt in hdfs.
and also had put users.txt in input directory of hdfs.

After entering in /opt/mahout/core   directory.

when ever i try to build mahout-core-0.7-SNAPSHOT.job using "mvn clean
package".
It will not create any mahout-core-0.7-SNAPSHOT.job .

i am only see
mahout-core-0.7-SNAPSHOT.jar,mahout-core-0.7-SNAPSHOT-job.jar,mahout-core-0.7-SNAPSHOT-tests.jar.

when ever i try to run from this command:
hduser@ubuntu:/usr/local/hadoop$ bin/hadoop jar
/opt/mahout/core/target/mahout-core-0.7-SNAPSHOT.jar
org.apache.mahout.cf.taste.hadoop.item.RecommenderJob
-Dmapred.input.dir=input/input.txt -Dmapred.output.dir=output --usersFile
input/users.txt --booleanData

I got the following error.

Exception in thread "main" java.lang.NoClassDefFoundError:
org/apache/commons/cli2/Option
    at java.lang.Class.forName0(Native Method)
    at java.lang.Class.forName(Class.java:264)
    at org.apache.hadoop.util.RunJar.main(RunJar.java:149)
Caused by: java.lang.ClassNotFoundException: org.apache.commons.cli2.Option
    at java.net.URLClassLoader$1.run(URLClassLoader.java:217)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:205)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:321)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:266)

If i am try to run using this command:
hduser@ubuntu:/usr/local/hadoop$ bin/hadoop jar
/opt/mahout/core/target/mahout-core-0.7-SNAPSHOT.job
org.apache.mahout.cf.taste.hadoop.item.RecommenderJob
-Dmapred.input.dir=input/input.txt -Dmapred.output.dir=output --usersFile
input/users.txt --booleanData

i got the following error:

Exception in thread "main" java.io.IOException: Error opening job jar:
/opt/mahout/core/target/mahout-core-0.7-SNAPSHOT.job
    at org.apache.hadoop.util.RunJar.main(RunJar.java:90)
Caused by: java.util.zip.ZipException: error in opening zip file
    at java.util.zip.ZipFile.open(Native Method)
    at java.util.zip.ZipFile.<init>(ZipFile.java:131)
    at java.util.jar.JarFile.<init>(JarFile.java:150)
    at java.util.jar.JarFile.<init>(JarFile.java:87)
    at org.apache.hadoop.util.RunJar.main(RunJar.java:88)
 I tried a lot.but,do not come out from this error.

What i have to do?

your help will be appreciated.

Is there any another way to genarate recommendation on hadoop?
--
MANISH DUNANI
-THANX

[EMAIL PROTECTED]

Do 'install' on the maven build, not 'package'. Install apparently does more.

Look at examples/bin/asf-email-examples.sh and
examples/bin/factorize-movielens-1M.sh . These show how the
recommender jobs work.

On Thu, Mar 1, 2012 at 9:38 AM, manish dunani <[EMAIL PROTECTED]> wrote:
> I am using ubuntu 11.10.
>
> I downloaded mahout_trunk using
>
> "svn co http://svn.apache.org/repos/asf/mahout/trunk"
>
> in directory /opt.
> After that i use "mvn install" command.
>
> i already put linked-simple-sorted.txt in hdfs.
> and also had put users.txt in input directory of hdfs.
>
> After entering in /opt/mahout/core   directory.
>
> when ever i try to build mahout-core-0.7-SNAPSHOT.job using "mvn clean
> package".
> It will not create any mahout-core-0.7-SNAPSHOT.job .
>
> i am only see
> mahout-core-0.7-SNAPSHOT.jar,mahout-core-0.7-SNAPSHOT-job.jar,mahout-core-0.7-SNAPSHOT-tests.jar.
>
> when ever i try to run from this command:
> hduser@ubuntu:/usr/local/hadoop$ bin/hadoop jar
> /opt/mahout/core/target/mahout-core-0.7-SNAPSHOT.jar
> org.apache.mahout.cf.taste.hadoop.item.RecommenderJob
> -Dmapred.input.dir=input/input.txt -Dmapred.output.dir=output --usersFile
> input/users.txt --booleanData
>
> I got the following error.
>
> Exception in thread "main" java.lang.NoClassDefFoundError:
> org/apache/commons/cli2/Option
>    at java.lang.Class.forName0(Native Method)
>    at java.lang.Class.forName(Class.java:264)
>    at org.apache.hadoop.util.RunJar.main(RunJar.java:149)
> Caused by: java.lang.ClassNotFoundException: org.apache.commons.cli2.Option
>    at java.net.URLClassLoader$1.run(URLClassLoader.java:217)
>    at java.security.AccessController.doPrivileged(Native Method)
>    at java.net.URLClassLoader.findClass(URLClassLoader.java:205)
>    at java.lang.ClassLoader.loadClass(ClassLoader.java:321)
>    at java.lang.ClassLoader.loadClass(ClassLoader.java:266)
>
> If i am try to run using this command:
> hduser@ubuntu:/usr/local/hadoop$ bin/hadoop jar
> /opt/mahout/core/target/mahout-core-0.7-SNAPSHOT.job
> org.apache.mahout.cf.taste.hadoop.item.RecommenderJob
> -Dmapred.input.dir=input/input.txt -Dmapred.output.dir=output --usersFile
> input/users.txt --booleanData
>
> i got the following error:
>
> Exception in thread "main" java.io.IOException: Error opening job jar:
> /opt/mahout/core/target/mahout-core-0.7-SNAPSHOT.job
>    at org.apache.hadoop.util.RunJar.main(RunJar.java:90)
> Caused by: java.util.zip.ZipException: error in opening zip file
>    at java.util.zip.ZipFile.open(Native Method)
>    at java.util.zip.ZipFile.<init>(ZipFile.java:131)
>    at java.util.jar.JarFile.<init>(JarFile.java:150)
>    at java.util.jar.JarFile.<init>(JarFile.java:87)
>    at org.apache.hadoop.util.RunJar.main(RunJar.java:88)
>
>
>  I tried a lot.but,do not come out from this error.
>
> What i have to do?
>
> your help will be appreciated.
>
> Is there any another way to genarate recommendation on hadoop?
>
>
> --
> MANISH DUNANI
> -THANX
>
> [EMAIL PROTECTED]

--
Lance Norskog
[EMAIL PROTECTED]

Please just use one thread for this project. It is easier to track and help you.

On Fri, Mar 2, 2012 at 7:08 PM, Lance Norskog <[EMAIL PROTECTED]> wrote:
> Do 'install' on the maven build, not 'package'. Install apparently does more.
>
> Look at examples/bin/asf-email-examples.sh and
> examples/bin/factorize-movielens-1M.sh . These show how the
> recommender jobs work.
>
> On Thu, Mar 1, 2012 at 9:38 AM, manish dunani <[EMAIL PROTECTED]> wrote:
>> I am using ubuntu 11.10.
>>
>> I downloaded mahout_trunk using
>>
>> "svn co http://svn.apache.org/repos/asf/mahout/trunk"
>>
>> in directory /opt.
>> After that i use "mvn install" command.
>>
>> i already put linked-simple-sorted.txt in hdfs.
>> and also had put users.txt in input directory of hdfs.
>>
>> After entering in /opt/mahout/core   directory.
>>
>> when ever i try to build mahout-core-0.7-SNAPSHOT.job using "mvn clean
>> package".
>> It will not create any mahout-core-0.7-SNAPSHOT.job .
>>
>> i am only see
>> mahout-core-0.7-SNAPSHOT.jar,mahout-core-0.7-SNAPSHOT-job.jar,mahout-core-0.7-SNAPSHOT-tests.jar.
>>
>> when ever i try to run from this command:
>> hduser@ubuntu:/usr/local/hadoop$ bin/hadoop jar
>> /opt/mahout/core/target/mahout-core-0.7-SNAPSHOT.jar
>> org.apache.mahout.cf.taste.hadoop.item.RecommenderJob
>> -Dmapred.input.dir=input/input.txt -Dmapred.output.dir=output --usersFile
>> input/users.txt --booleanData
>>
>> I got the following error.
>>
>> Exception in thread "main" java.lang.NoClassDefFoundError:
>> org/apache/commons/cli2/Option
>>    at java.lang.Class.forName0(Native Method)
>>    at java.lang.Class.forName(Class.java:264)
>>    at org.apache.hadoop.util.RunJar.main(RunJar.java:149)
>> Caused by: java.lang.ClassNotFoundException: org.apache.commons.cli2.Option
>>    at java.net.URLClassLoader$1.run(URLClassLoader.java:217)
>>    at java.security.AccessController.doPrivileged(Native Method)
>>    at java.net.URLClassLoader.findClass(URLClassLoader.java:205)
>>    at java.lang.ClassLoader.loadClass(ClassLoader.java:321)
>>    at java.lang.ClassLoader.loadClass(ClassLoader.java:266)
>>
>> If i am try to run using this command:
>> hduser@ubuntu:/usr/local/hadoop$ bin/hadoop jar
>> /opt/mahout/core/target/mahout-core-0.7-SNAPSHOT.job
>> org.apache.mahout.cf.taste.hadoop.item.RecommenderJob
>> -Dmapred.input.dir=input/input.txt -Dmapred.output.dir=output --usersFile
>> input/users.txt --booleanData
>>
>> i got the following error:
>>
>> Exception in thread "main" java.io.IOException: Error opening job jar:
>> /opt/mahout/core/target/mahout-core-0.7-SNAPSHOT.job
>>    at org.apache.hadoop.util.RunJar.main(RunJar.java:90)
>> Caused by: java.util.zip.ZipException: error in opening zip file
>>    at java.util.zip.ZipFile.open(Native Method)
>>    at java.util.zip.ZipFile.<init>(ZipFile.java:131)
>>    at java.util.jar.JarFile.<init>(JarFile.java:150)
>>    at java.util.jar.JarFile.<init>(JarFile.java:87)
>>    at org.apache.hadoop.util.RunJar.main(RunJar.java:88)
>>
>>
>>  I tried a lot.but,do not come out from this error.
>>
>> What i have to do?
>>
>> your help will be appreciated.
>>
>> Is there any another way to genarate recommendation on hadoop?
>>
>>
>> --
>> MANISH DUNANI
>> -THANX
>>
>> [EMAIL PROTECTED]
>
>
>
> --
> Lance Norskog
> [EMAIL PROTECTED]

--
Lance Norskog
[EMAIL PROTECTED]