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https://issues.apache.org/jira/browse/HDFS-2165?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Uma Maheswara Rao G resolved HDFS-2165.
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Resolution: Duplicate
HDFS-1973 implemented such mechanism..
> The Intelligent Clients should switch dynamically according to the Namenode
> switchover & the operations that fail during the switching should be retried
> on the newly Active Namenode.
> --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: HDFS-2165
> URL: https://issues.apache.org/jira/browse/HDFS-2165
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: datanode, hdfs-client, namenode
> Reporter: Justin Joseph
>
> Here we consider DataNode and DFSClient as clients to the Namenode. When
> Active Namenode goes down and Standby takes over the role, the clients should
> understand it and communicate to the newly Active Namenode from that point of
> time.
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