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https://issues.apache.org/jira/browse/HDDS-13007?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated HDDS-13007:
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Labels: pull-request-available (was: )
> Snapshot diff computation changes after snapshots have been defragged
> ---------------------------------------------------------------------
>
> Key: HDDS-13007
> URL: https://issues.apache.org/jira/browse/HDDS-13007
> Project: Apache Ozone
> Issue Type: Sub-task
> Reporter: Swaminathan Balachandran
> Assignee: Sadanand Shenoy
> Priority: Major
> Labels: pull-request-available
>
> To compute a snapshot diff:
> * If both snapshots are compacted, their compacted versions will be used.
> The diff b/w two compacted snapshot should be present in one sst file. Just
> perform full diff in this case.
> * If the target snapshot is uncompacted & the source snapshot is
> compacted(other way is not possible as we always compact snapshots in order)
> and if the DAG has all the sst files corresponding to the uncompacted
> snapshot version of the compacted snapshot which would be captured as part of
> the snapshot metadata once a snapshot is compacted, then an efficient diff
> can be performed with the information present in the DAG.
> * Otherwise, a full diff will be computed between the compacted source and
> the uncompacted target snapshot.
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