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https://issues.apache.org/jira/browse/HDDS-15387?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Saketa Chalamchala updated HDDS-15387:
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Parent: HDDS-9154
Issue Type: Sub-task (was: Task)
> Add a SnapshotDiffValueParser to selectively deserialize fields from
> KeyInfo/DirectoryIndo
> ------------------------------------------------------------------------------------------
>
> Key: HDDS-15387
> URL: https://issues.apache.org/jira/browse/HDDS-15387
> Project: Apache Ozone
> Issue Type: Sub-task
> Reporter: Saketa Chalamchala
> Assignee: Saketa Chalamchala
> Priority: Major
>
> Add a `SnapshotDiffValueParser` with methods to
> 1. Support deserializing required fields only using tag numbers from
> KeyInfo/DirectoryInfo
> - `updateID` to check for diff candidacy
> - `objectID`, `parentID`, `name/keyName` for path resolution
> - latest block layout, `size`, `fileChecksum` to indicate content change
> - ACLs, metadata, tags to indicate meaningful metadata change
> 2. Build a compare signature by hashing content and metadata change fields.
> This avoids deserializing the entire KeyInfo/DirectoryInfo value for key
> comparisons.
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