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https://issues.apache.org/jira/browse/HDFS-1073?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12928794#action_12928794
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Robert Chansler commented on HDFS-1073:
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bq. Worked so far.
How would you know? I just feel better having some check that the log is
complete, especially in the new world where the log is a sequence of files.
It's conceivable that not only could the last log file be truncated, any
number of log _files_ at the end of the log could be missing entirely. Of
course, if the log files were being written to a more robust file system like
HDFS, the need for integrity checks would be less.
> 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
> Attachments: hdfs-1073.txt, hdfs1073.pdf
>
>
> 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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