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Posted to hdfs-issues@hadoop.apache.org by "Joe Pallas (JIRA)" <ji...@apache.org> on 2015/01/27 22:19:36 UTC

[jira] [Commented] (HDFS-5194) Robust support for alternate FsDatasetSpi implementations

    [ https://issues.apache.org/jira/browse/HDFS-5194?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14294204#comment-14294204 ] 

Joe Pallas commented on HDFS-5194:
----------------------------------

Some of the issues identified in the document relating to scanners ( {{BlockPoolSliceScanner}} and {{DirectoryScanner}} ) are addressed by HDFS-7430.

> Robust support for alternate FsDatasetSpi implementations
> ---------------------------------------------------------
>
>                 Key: HDFS-5194
>                 URL: https://issues.apache.org/jira/browse/HDFS-5194
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: datanode, hdfs-client
>            Reporter: David Powell
>            Assignee: David Powell
>            Priority: Minor
>         Attachments: HDFS-5194.design.01222014.pdf, HDFS-5194.design.09112013.pdf, HDFS-5194.patch.09112013
>
>
> The existing FsDatasetSpi interface is well-positioned to permit extending Hadoop to run natively on non-traditional storage architectures.  Before this can be done, however, a number of gaps need to be addressed.  This JIRA documents those gaps, suggests some solutions, and puts forth a sample implementation of some of the key changes needed.



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