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https://issues.apache.org/jira/browse/HDDS-7953?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17738723#comment-17738723
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Jyotirmoy Sinha commented on HDDS-7953:
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[~smeng] We can proceed with similar output to HDFS snapshotDiff output when we
have empty list.
Also can we print error or throw some exception in the 2nd scenario where both
source and destination snapshot names are passed same.
> [snapshot] SnapshotDiff should throw proper responses in case there are no
> differences to be listed
> ---------------------------------------------------------------------------------------------------
>
> Key: HDDS-7953
> URL: https://issues.apache.org/jira/browse/HDDS-7953
> Project: Apache Ozone
> Issue Type: Sub-task
> Components: Ozone Manager
> Reporter: Jyotirmoy Sinha
> Assignee: Siyao Meng
> Priority: Major
> Labels: ozone-snapshot
>
> SnapshotDiff should throw proper responses in case there are no differences
> to be listed
> {code:java}
> [root@jspriv01-1 ~]# ozone sh snapshot snapshotDiff vol1/buck1 snap3 snap4
> Difference between snapshot snap3 and snapshot snap4:
> [root@jspriv01-1 ~]# {code}
> The message for above scenario should indicate that there are no differences
> in the 2 snapshots
> Also, for a case where the source and destination snapshot are both same, it
> should throw an error stating that both from-to snapshot cannot be same.
> Current behaviour -
> {code:java}
> [root@jspriv01-1 ~]# ozone sh snapshot snapshotDiff vol1/buck1 snap3 snap3
> Difference between snapshot snap3 and snapshot snap3:
> [root@jspriv01-1 ~] {code}
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