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https://issues.apache.org/jira/browse/HDFS-1073?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13070021#comment-13070021
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Konstantin Shvachko commented on HDFS-1073:
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Did a quick sweep over warnings:
# Remove unused imports: CheckpointSignature, EditLogFileOutputStream,
FSEditLogLoader, TransferFsImage, NamenodeProtocol, NamenodeRegistration,
NamespaceInfo, EditsLoaderCurrent, ImageLoaderCurrent.
# Unused code: EditLogBackupInputStream.ByteBufferInputStream.getData()
# Move SecondaryNameNode.rollForwardByApplyingLogs() into Checkpointer to avoid
deprecation warning and to ease removal of SNN in the future.
Looking further.
> 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
> Affects Versions: 0.23.0
> Reporter: Sanjay Radia
> Assignee: Todd Lipcon
> Fix For: 0.23.0
>
> Attachments: hdfs-1073-editloading-algos.txt, hdfs-1073-merge.patch,
> hdfs-1073-merge.patch, hdfs-1073.txt, hdfs1073.pdf, hdfs1073.pdf,
> hdfs1073.pdf, hdfs1073.tex
>
>
> 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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