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https://issues.apache.org/jira/browse/HDDS-16082?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated HDDS-16082:
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Labels: pull-request-available (was: )
> [Ozone versioning] [T5] SUSPENDED semantics
> -------------------------------------------
>
> Key: HDDS-16082
> URL: https://issues.apache.org/jira/browse/HDDS-16082
> Project: Apache Ozone
> Issue Type: Sub-task
> Reporter: Janus Chow
> Assignee: Janus Chow
> Priority: Major
> Labels: pull-request-available
>
> This ticket includes the following tasks:
> |*Sub-task*|*Scope*|*Acceptance*|
> |T5.1 PUT null-slot overwrite|SUSPENDED PUT locates and replaces the null
> slot|no version accumulation; old null-version data reclaimed; Enabled-era
> versions unaffected.
> the new record becomes the current version even when the null slot was
> noncurrent|
> |T5.2 DELETE null marker|SUSPENDED DELETE writes an isNullVersion=true
> marker|overwrites the existing null slot; historical versions stay
> readable/deletable by versionId|
> |T5.3 pre-versioning keys, zero migration|keys written before enabling
> versioning interpreted as null versions|no data rewrite of any kind;
> versionId=null addressing hits the legacy record|
> |T5.4 MPU version retention|multipart upload completion follows the same
> version-retention path as PUT|the superseded version is demoted to the
> versionedKeyTable instead of being dropped — it stays readable by versionId
> and its blocks are neither leaked nor reclaimed; the completed key carries a
> generated versionId; a SUSPENDED completion takes the null slot with the same
> semantics as T5.1|
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