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Posted to common-dev@hadoop.apache.org by "dhruba borthakur (JIRA)" <ji...@apache.org> on 2009/03/12 06:58:50 UTC

[jira] Updated: (HADOOP-4058) Transparent archival and restore of files from HDFS

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

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

    Attachment: migrator.txt

A very preliminary version of a proposal that supports archival and migration of files across clusters.

> 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: 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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