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https://issues.apache.org/jira/browse/HDFS-1073?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12856649#action_12856649
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Sanjay Radia commented on HDFS-1073:
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>Please add the following items to your design doc:
One more item that Konstantine mentioned at lunch: upgrade - what if anything
needs to change?
>Concurrent checkpoints (saveImage and checkpointer)
Oops, you have already covered it.
> Simpler model for Namenode's fs Image and edit Logs
> ----------------------------------------------------
>
> Key: HDFS-1073
> URL: https://issues.apache.org/jira/browse/HDFS-1073
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: Sanjay Radia
> Assignee: Todd Lipcon
>
> The naming and handling of NN's fsImage and edit logs can be significantly
> improved resulting simpler and more robust code.
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