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https://issues.apache.org/jira/browse/HDFS-11773?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16071044#comment-16071044
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Anu Engineer commented on HDFS-11773:
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+1, I will commit this shortly. We should file a JIRA to trace out all the
"FAILED_INTERNAL_ERROR" and see if we can replace it with a better errors. Also
when we return "FAILED_INTERNAL_ERROR", we should log with an Error level. Both
of this we can do it in a separate JIRA, so I am going to commit this patch now.
> Ozone: KSM : add listVolumes
> ----------------------------
>
> Key: HDFS-11773
> URL: https://issues.apache.org/jira/browse/HDFS-11773
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: ozone
> Affects Versions: HDFS-7240
> Reporter: Anu Engineer
> Assignee: Weiwei Yang
> Attachments: HDFS-11773-HDFS-7240.001.patch,
> HDFS-11773-HDFS-7240.002.patch, HDFS-11773-HDFS-7240.003.patch,
> listVolume_tests.log
>
>
> List volume call can be used in three different contexts. One is for the
> administrators to list all volumes in a cluster. Second is for the
> administrator to list the volumes owned by a specific user. Third is a user
> listing the volumes owned by himself/herself.
> Since these calls can return large number of entries the rest protocol
> supports paging. Paging is supported by the use of prevKey, prefix and
> maxKeys. The caller is aware the this call is neither atomic nor consistent.
> So we can iterate over the list even while changes are happening to the list.
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