[
https://issues.apache.org/jira/browse/HADOOP-4058?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12628665#action_12628665
]
Doug Cutting commented on HADOOP-4058:
--------------------------------------
> the only issue is that this does not save on inode count for primary hdfs
> instance
> inodes are as important (or perhaps more) a resource in hdfs as raw storage.
The har:// format exists to conserve inodes. One can archive trees as har://
archives, replacing the root with a symbolic link to the archive. This would
conserve inodes in the original and archive filesystems.
> 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
>
> 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.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
