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https://issues.apache.org/jira/browse/HDDS-8303?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17757066#comment-17757066
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Wei-Chiu Chuang commented on HDDS-8303:
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[~dteng] this looks critical. is this still the case now? is there a
reproduction test case?
> Some snapshotDiff command returns empty result when multiple snapshots diff
> commands run concurrently
> -----------------------------------------------------------------------------------------------------
>
> Key: HDDS-8303
> URL: https://issues.apache.org/jira/browse/HDDS-8303
> Project: Apache Ozone
> Issue Type: Bug
> Reporter: Dave Teng
> Priority: Major
>
> Some snapshotDiff command returns empty result when multiple snapshots diff
> commands run concurrently.
> I tried to run 50 concurrent snapshotDiff command against 50 different set of
> snapshots which were different (They all contained different key-operations
> differences between snapshots. So these key namespaces between snapshots are
> all different.). Only two processes returns the snapshot diff reports, the
> other processes returned empty response. The expected result should not be
> empty unless two snapshots contains no difference in key namespace. However
> each snapshotDiff command I run here used different snapshots which contains
> different keys namespace, empty response should not happen in theory.
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