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https://issues.apache.org/jira/browse/HDDS-14019?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wei-Chiu Chuang resolved HDDS-14019.
------------------------------------
    Resolution: Duplicate

Resolving as a duplicate of HDDS-14031. Both issues request replacing the 
PersistentMap/RocksDbPersistentMap implementation used for snapshot diff 
storage with the existing DBStore framework and buffer-based codecs. HDDS-14031 
remains the canonical open issue.

The work is still needed: SnapshotDiffManager continues to use PersistentMap 
and RocksDbPersistentMap for the job/report tables and intermediate maps. 
Evidence at d0949f291791c399f3e54409fcb92656a80597a4:
* 
https://github.com/apache/ozone/blob/d0949f291791c399f3e54409fcb92656a80597a4/hadoop-ozone/ozone-manager/src/main/java/org/apache/hadoop/ozone/om/snapshot/SnapshotDiffManager.java#L188
* 
https://github.com/apache/ozone/blob/d0949f291791c399f3e54409fcb92656a80597a4/hadoop-ozone/ozone-manager/src/main/java/org/apache/hadoop/ozone/om/snapshot/SnapshotDiffManager.java#L259

> Get rid of PersistentMap implementation and use DBStore 
> --------------------------------------------------------
>
>                 Key: HDDS-14019
>                 URL: https://issues.apache.org/jira/browse/HDDS-14019
>             Project: Apache Ozone
>          Issue Type: Sub-task
>            Reporter: Swaminathan Balachandran
>            Priority: Major
>
> Currently PersistentMap is redundantly implemented for managin Snapshot DB 
> which is unoptimal in comparison to RDBStore. Cleanup this entire usage and 
> move to using RDBStore tables with CodecBuffer instead of byte arrays which 
> can have jvm GC issue.



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