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https://issues.apache.org/jira/browse/HDFS-11769?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16014518#comment-16014518
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Xiaoyu Yao commented on HDFS-11769:
-----------------------------------
Just to clarify the ksm.db schema based on discussion on HDFS-11769 and
HDFS-11775.
{code}
/{VolumeName} -> {VolumeInfo}
/{VolumeName}/{BucketName} -> {BucketInfo}
/{VolumeName}/{BucketName}/{KeyName} -> {KeyInfo}
${UserName} -> <VolumeList of the user>
{code}
The ${UserName} already exists with HDFS-11769. "/" prefix will be added in
HDFS-11770. The pro of having a "/" is that the Volume name does not have to
check for userName prefix $. The cons of having "/" prefix is the additional
storage cost, which is relative low.
> 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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