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From "Nandakumar (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-11769) Ozone: KSM: Add createVolume API
Date Sat, 13 May 2017 22:52:04 GMT

    [ https://issues.apache.org/jira/browse/HDFS-11769?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16009532#comment-16009532
] 

Nandakumar commented on HDFS-11769:
-----------------------------------

{{VolumeManager#createVolume}} throws {{KSMException(FAILED_VOLUME_ALREADY_EXISTS)}} when
volume already exists, since the throw statement is within try cache block and KSMException
extends IOException,  {{catch (IOException | DBException ex)}} will catch the exception again
and throw a new {{KSMException(FAILED_INTERNAL_ERROR)}}. So even in case of VOLUME_ALREADY_EXISTS
we will get INTERNAL_ERROR.

> 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
>         Attachments: HDFS-11769-HDFS-7240.001.patch, HDFS-11769-HDFS-7240.002.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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