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Type:
New Feature
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Status: Closed
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Priority:
Major
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Resolution: Fixed
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Affects Version/s: None
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Fix Version/s: 0.13.0
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Component/s: None
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Labels:None
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.
- is related to
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HDFS-2983 Relax the build version check to permit rolling upgrades within a release
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- Closed
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- relates to
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HADOOP-1604 admins should be able to finalize namenode upgrades without running the cluster
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- Closed
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HDFS-293 Remove code related to conversion of name-node and data-node storage directories to the format introduced in hadoop 0.13
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- Resolved
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