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https://issues.apache.org/jira/browse/HDFS-6974?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14564384#comment-14564384
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Michael Schmeißer commented on HDFS-6974:
-----------------------------------------

The existence of this ticket helped to track down the problem, but if it is 
feasible, a more meaningfull error message would help here.

> MiniHDFScluster breaks if there is an out of date hadoop.lib on the lib path 
> -----------------------------------------------------------------------------
>
>                 Key: HDFS-6974
>                 URL: https://issues.apache.org/jira/browse/HDFS-6974
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: test
>    Affects Versions: 2.6.0
>         Environment: Windows with a version of Hadoop (HDP2.1) installed 
> somewhere via an MSI
>            Reporter: Steve Loughran
>            Priority: Minor
>
> SLIDER-377 shows the trace of a MiniHDFSCluster test failing on native 
> library calls ... the root cause appears to be the 2.4.1 hadoop lib on the 
> path doesn't have all the methods needed by branch-2.
> When this situation arises, MiniHDFS cluster fails to work.



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