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From "Xiaoyu Yao (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-11769) Ozone: KSM: Add createVolume API
Date Wed, 17 May 2017 02:00:15 GMT

    [ https://issues.apache.org/jira/browse/HDFS-11769?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16013385#comment-16013385
] 

Xiaoyu Yao commented on HDFS-11769:
-----------------------------------

Good question, [~vagarychen]. I agree that we will need prefix to differentiate the entry
types. We currently have the following schema:

{code}
Volume -> VolumeInfo
Volume/Bucket -> BucketInfo
Volume/Bucket/Key -> KeyInfo
User->VolumeList
{code}

How about changing to the following with Volumes/Buckets/Keys/Users as prefix for different
types?
{code}
/Volumes/{VolumeName} -> {VolumeInfo}
/Buckets/{VolumeName}/{BucketName} -> {BucketInfo}
/Keys/{VolumeName}/{BucketName}/{KeyName} -> {KeyInfo}
/Users/{UserName} -> <VolumeList of the user>
{code}
 

> Ozone: KSM: Add createVolume API
> --------------------------------
>
>                 Key: HDFS-11769
>                 URL: https://issues.apache.org/jira/browse/HDFS-11769
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: ozone
>    Affects Versions: HDFS-7240
>            Reporter: Anu Engineer
>            Assignee: Mukul Kumar Singh
>             Fix For: HDFS-7240
>
>         Attachments: HDFS-11769-HDFS-7240.001.patch, HDFS-11769-HDFS-7240.002.patch,
HDFS-11769-HDFS-7240.003.patch, HDFS-11769-HDFS-7240.004.patch, HDFS-11769-HDFS-7240.005.patch,
HDFS-11769-HDFS-7240.006.patch, HDFS-11769-HDFS-7240.007.patch, HDFS-11769-HDFS-7240.008.patch
>
>
> Add createVolume API in KSM.
> createVolume API allows administrators to create a volume. The arguments to the API are:
> * Admin Name - The name of the administrator who is creating this volume. Volumes can
be created only by administrators.
> *  User Name - The name of the owner of this volume.
> * Quota - Quota information for this volume.
> This JIRA proposes to add the protobuf layer for createVolume and handling in KSM. We
will file a followup JIRA for the KSM client.



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