Redesign the dfs namespace datastructures to be copy on write
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Key: HADOOP-334
URL: http://issues.apache.org/jira/browse/HADOOP-334
Project: Hadoop
Type: Improvement
Components: dfs
Versions: 0.4.0
Reporter: Owen O'Malley
Assigned to: Owen O'Malley
The namespace datastructures should be copy on write so that the namespace does
not need to be completely locked down from user changes while the checkpoint is
being made.
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