[jira] [Updated] (MAHOUT-1590) mahout unit test failures due to guava version conflict on hadoop 2

["Andrew Palumbo (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/MAHOUT-1590?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Andrew Palumbo updated MAHOUT-1590:
-----------------------------------
    Labels: DSL scala spark  (was: )

> mahout unit test failures due to guava version conflict on hadoop 2
> -------------------------------------------------------------------
>
>                 Key: MAHOUT-1590
>                 URL: https://issues.apache.org/jira/browse/MAHOUT-1590
>             Project: Mahout
>          Issue Type: Bug
>    Affects Versions: 1.0
>         Environment: Hadoop 2.x 
>            Reporter: Venkat Ranganathan
>              Labels: DSL, scala, spark
>             Fix For: 1.0
>
>         Attachments: MAHOUT-1590.patch
>
>
> Running 
>    mvn clean test -Dhadoop2.version=2.4.0 
> has many unit test failures because guava version mismatch.   
> For example:
> ======
> completeJobToyExample(org.apache.mahout.cf.taste.hadoop.als.ParallelALSFactorizationJobTest)  Time elapsed: 0.736 sec  <<< ERROR!
> java.lang.NoSuchMethodError: com.google.common.base.Stopwatch.elapsedMillis()J
>         at __randomizedtesting.SeedInfo.seed([BEBBF9ACD237F984:B570D1523391FD4E]:0)
>         at org.apache.hadoop.mapreduce.lib.input.FileInputFormat.listStatus(FileInputFormat.java:278)
>         at org.apache.hadoop.mapreduce.lib.input.FileInputFormat.getSplits(FileInputFormat.java:375)
>         at org.apache.hadoop.mapreduce.JobSubmitter.writeNewSplits(JobSubmitter.java:493)
>         at org.apache.hadoop.mapreduce.JobSubmitter.writeSplits(JobSubmitter.java:510)
>         at org.apache.hadoop.mapreduce.JobSubmitter.submitJobInternal(JobSubmitter.java:394)
>         at org.apache.hadoop.mapreduce.Job$10.run(Job.java:1285)
>         at org.apache.hadoop.mapreduce.Job$10.run(Job.java:1282)
>         at java.security.AccessController.doPrivileged(Native Method)
>         at javax.security.auth.Subject.doAs(Subject.java:396)
>         at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1548)
>         at org.apache.hadoop.mapreduce.Job.submit(Job.java:1282)
>         at org.apache.hadoop.mapreduce.Job.waitForCompletion(Job.java:1303)
>         at org.apache.mahout.cf.taste.hadoop.als.ParallelALSFactorizationJob.run(ParallelALSFactorizationJob.java:172)
>         at org.apache.mahout.cf.taste.hadoop.als.ParallelALSFactorizationJobTest.explicitExample(ParallelALSFactorizationJobTest.java:112)
>         at org.apache.mahout.cf.taste.hadoop.als.ParallelALSFactorizationJobTest.completeJobToyExample(ParallelALSFactorizationJobTest.java:71)
> =====
> hadoop mapreduce V2 is using guava v11.0.2 and mahout is using guava version 16.0
> After trying different versions guava version 14.0 seems to have hadoop MR V2 compatible jars and mahout needed classes. 
> The unit tests ran successfully after changing the dependency in mahout to v14.0



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