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https://issues.apache.org/jira/browse/OOZIE-3542?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16936909#comment-16936909
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Julia Kinga Marton commented on OOZIE-3542:
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[~zsombor], can you please share what was the problem with the initial patch?

> Handle better old Hdfs implementations in ECPolicyDisabler
> ----------------------------------------------------------
>
>                 Key: OOZIE-3542
>                 URL: https://issues.apache.org/jira/browse/OOZIE-3542
>             Project: Oozie
>          Issue Type: Bug
>          Components: tools
>            Reporter: Zsombor Gegesy
>            Assignee: Zsombor Gegesy
>            Priority: Major
>             Fix For: 5.2.0
>
>         Attachments: OOZIE-3542-2.patch, OOZIE-3542-3.patch, 
> OOZIE-3542-4.patch, OOZIE-3542-amend-01.patch
>
>
> Currently, ECPolicyDisabler checks if the local hdfs implementation has the 
> necessary methods to get and set erasure coding policy. However, if the 
> namenode implementation is old, it could throw a 
> org.apache.hadoop.ipc.RemoteException with 
> RpcErrorCodeProto.ERROR_NO_SUCH_METHOD value in it.
> In this case, ECPolicyDisabler fails, and prevents the installation to 
> succeed.
> This case should be handled just like, when erasure coding is not supported.



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