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https://issues.apache.org/jira/browse/HDFS-8575?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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nijel reassigned HDFS-8575:
---------------------------
Assignee: (was: nijel)
keeping it unassigned as no work planned.
> Support User level Quota for space and Name (count)
> ---------------------------------------------------
>
> Key: HDFS-8575
> URL: https://issues.apache.org/jira/browse/HDFS-8575
> Project: Hadoop HDFS
> Issue Type: New Feature
> Reporter: nijel
>
> I would like to have one feature in HDFS to have quota management at user
> level.
> Background :
> When the customer uses a multi tenant solution it will have many Hadoop eco
> system components like HIVE, HBASE, yarn etc. The base folder of these
> components are different like /hive - Hive , /hbase -HBase.
> Now if a user creates some file or table these will be under the folder
> specific to component. If the user name is taken into account it looks like
> {code}
> /hive/user1/table1
> /hive/user2/table1
> /hbase/user1/Htable1
> /hbase/user2/Htable1
>
> Same for yarn/map-reduce data and logs
> {code}
>
> In this case restricting the user to use a certain amount of disk/file is
> very difficult since the current quota management is at folder level.
>
> Requirement: User level Quota for space and Name (count). Say user1 can have
> 100G irrespective of the folder or location used.
>
> Here the idea to consider the file owner ad the key and attribute the quota
> to it. So the current quota system can have a initial check for the user
> quota if defined, before validating the folder quota.
> Note:
> This need a change in fsimage to store the user and quota information
> Please have a look on this scenario. If it sounds good, i will create the
> tasks and the update the design and prototype.
> Thanks
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