DFS Upgrade Proposal
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Key: HADOOP-702
URL: http://issues.apache.org/jira/browse/HADOOP-702
Project: Hadoop
Issue Type: New Feature
Components: dfs
Reporter: Konstantin Shvachko
Currently the DFS cluster upgrade procedure is manual.
http://wiki.apache.org/lucene-hadoop/Hadoop_Upgrade
It is rather complicated and does not guarantee data recoverability in case of
software errors or administrator mistakes.
This is a description of utilities that make the upgrade process almost
automatic and minimize chance of loosing or corrupting data.
Please see the attached html file for details.
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