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