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Posted to dev@mahout.apache.org by "Junping Du (JIRA)" <ji...@apache.org> on 2015/03/12 02:56:38 UTC

[jira] [Commented] (MAHOUT-1645) mahout 1.0 snapshot not compatible with hadoop 2.2

    [ https://issues.apache.org/jira/browse/MAHOUT-1645?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14357966#comment-14357966 ] 

Junping Du commented on MAHOUT-1645:
------------------------------------

We should use hadoop-mapreduce-client-core.jar (for hadoop-2) instead of hadoop-client.jar in building HadoopUtil.

> mahout 1.0 snapshot not compatible with hadoop 2.2
> --------------------------------------------------
>
>                 Key: MAHOUT-1645
>                 URL: https://issues.apache.org/jira/browse/MAHOUT-1645
>             Project: Mahout
>          Issue Type: Bug
>         Environment: hadoop 2.2
>            Reporter: Lin Duan
>
> Exception in thread "main" java.lang.IncompatibleClassChangeError: Found interface org.apache.hadoop.mapreduce.JobContext, but class was expected
>         at org.apache.mahout.common.HadoopUtil.getCustomJobName(HadoopUtil.java:174)
>         at org.apache.mahout.common.AbstractJob.prepareJob(AbstractJob.java:614)
>      



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