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https://issues.apache.org/jira/browse/HDFS-5194?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13893479#comment-13893479
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Eric Sirianni commented on HDFS-5194:
-------------------------------------
I have converted HDFS-5868 to a subtask of this JIRA. Removing the
file-based-access dependencies from the current DataNode {{hsync}}
implementation seems to fit squarely within the goals of this JIRA.
[~dep] - please comment if you disagree.
[~eli] - can you take a look at HDFS-5868? In my opinion, this is a tad more
critical than some of the other items discussed as there is no workaround
available to alternate {{FsDatasetSpi}} implementors.
> 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
> 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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