Online Snapshotting Capability
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Key: HADOOP-2541
URL: https://issues.apache.org/jira/browse/HADOOP-2541
Project: Hadoop
Issue Type: Improvement
Components: dfs
Affects Versions: 0.15.1
Reporter: Allen Wittenauer
Modern file systems have the ability to create snapshots of the running file
system without having to unmount. HDFS should be offer similar capabilities to
allow admins the ability to perform "online" backups of the file system such
that files can be recovered after deletions or, for extra bonus points,
catastrophic failures.
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