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https://issues.apache.org/jira/browse/HDFS-15916?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Srinivasu Majeti updated HDFS-15916:
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Affects Version/s: 3.2.2
> Backward compatibility - Distcp fails from Hadoop 3 to Hadoop 2 for
> snapshotdiff
> --------------------------------------------------------------------------------
>
> Key: HDFS-15916
> URL: https://issues.apache.org/jira/browse/HDFS-15916
> Project: Hadoop HDFS
> Issue Type: Bug
> Affects Versions: 3.2.2
> Reporter: Srinivasu Majeti
> Priority: Major
>
> Looks like when using distcp diff options between two snapshots from a hadoop
> 3 cluster to hadoop 2 cluster , we get below exception and seems to be break
> backward compatibility due to new API introduction
> getSnapshotDiffReportListing.
> hadoop distcp -diff s1 s2 -update src_cluster_path dst_cluster_path
> org.apache.hadoop.ipc.RemoteException(org.apache.hadoop.ipc.RpcNoSuchMethodException):
> Unknown method getSnapshotDiffReportListing called on
> org.apache.hadoop.hdfs.protocol.ClientProtocol protocol
>
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