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https://issues.apache.org/jira/browse/HADOOP-4058?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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dhruba borthakur updated HADOOP-4058:
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Attachment: archival.pdf
A slide describing archival in the hadoop summit 2009.
> Transparent archival and restore of files from HDFS
> ---------------------------------------------------
>
> Key: HADOOP-4058
> URL: https://issues.apache.org/jira/browse/HADOOP-4058
> Project: Hadoop Core
> Issue Type: New Feature
> Components: dfs
> Reporter: dhruba borthakur
> Assignee: dhruba borthakur
> Attachments: archival.pdf, dfscron.txt, migrator.txt
>
>
> There should be a facility to migrate old files away from a production
> cluster. Access to those files from applications should continue to work
> transparently, without changing application code, but maybe with reduced
> performance. The policy engine that does this could be layered on HDFS
> rather than being built into HDFS itself.
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