[jira] Created: (HADOOP-2987) Keep two generations of fsimage

[Robert Chansler (JIRA)]

Keep two generations of fsimage
-------------------------------

                 Key: HADOOP-2987
                 URL: https://issues.apache.org/jira/browse/HADOOP-2987
             Project: Hadoop Core
          Issue Type: Improvement
          Components: dfs
            Reporter: Robert Chansler
            Assignee: Konstantin Shvachko
             Fix For: 0.17.0


Checkpoint to verify the fsimage each time it creates the new one.

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