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From "Rodrigo Schmidt (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-4058) Transparent archival and restore of files from HDFS
Date Fri, 27 Mar 2009 07:32:50 GMT

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

Rodrigo Schmidt updated HADOOP-4058:
------------------------------------

    Attachment: dfscron.txt

An alternative proposal, a bit more general, to support different types of services also triggered
by an HDFS monitor.

> 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: 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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