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From "Xiaoyu Yao (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-7584) Enable Quota Support for Storage Types
Date Thu, 12 Feb 2015 19:42:14 GMT

     [ https://issues.apache.org/jira/browse/HDFS-7584?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Xiaoyu Yao updated HDFS-7584:
-----------------------------
    Release Note: 
1. Introduced quota by storage type as a hard limit on the amount of space usage allowed for
different storage types (SSD, DISK, ARCHIVE) under the target directory.
2. Added {{SetQuotaByStorageType}} API and {{-storagetype}} option for  {{hdfs dfsadmin -setSpaceQuota/-clrSpaceQuota}}
commands to allow set/clear quota by storage type under the target directory.


> 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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