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From "dhruba borthakur (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-4058) Transparent archival and restore of files from HDFS
Date Thu, 11 Jun 2009 12:51:07 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-4058?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

dhruba borthakur updated HADOOP-4058:
-------------------------------------

    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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