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https://issues.apache.org/jira/browse/HDFS-7584?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14318794#comment-14318794
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Xiaoyu Yao commented on HDFS-7584:
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Thanks all for the review and feedbacks. I will update the release note for
this feature under HDFS-7584.
> Enable Quota Support for Storage Types
> --------------------------------------
>
> Key: HDFS-7584
> URL: https://issues.apache.org/jira/browse/HDFS-7584
> Project: Hadoop HDFS
> Issue Type: New Feature
> Components: datanode, namenode
> Reporter: Xiaoyu Yao
> Assignee: Xiaoyu Yao
> Fix For: 2.7.0
>
> Attachments: HDFS-7584 Quota by Storage Type - 01202015.pdf,
> HDFS-7584.0.patch, HDFS-7584.1.patch, HDFS-7584.2.patch, HDFS-7584.3.patch,
> HDFS-7584.4.patch, HDFS-7584.5.patch, HDFS-7584.6.patch, HDFS-7584.7.patch,
> HDFS-7584.8.patch, HDFS-7584.9.patch, HDFS-7584.9a.patch, HDFS-7584.9b.patch,
> HDFS-7584.9c.patch, editsStored
>
>
> Phase II of the Heterogeneous storage features have completed by HDFS-6584.
> This JIRA is opened to enable Quota support of different storage types in
> terms of storage space usage. This is more important for certain storage
> types such as SSD as it is precious and more performant.
> As described in the design doc of HDFS-5682, we plan to add new
> quotaByStorageType command and new name node RPC protocol for it. The quota
> by storage type feature is applied to HDFS directory level similar to
> traditional HDFS space quota.
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