echonesis opened a new pull request, #9678:
URL: https://github.com/apache/ozone/pull/9678
## What changes were proposed in this pull request?
This PR refactors the snapshot compaction tracking mechanism by replacing
`SnapshotCompactionDag` with a new flush-based tracking system using
`FlushLinkedList` and related components.
### Major changes:
- Removed: `CompactionDag` and `CompactionNode` classes that tracked
compaction operations in a DAG structure
- Added: Flush tracking system:
- `FlushLinkedList`: Tracks flush operations in a linked list structure
- `FlushNode`: Represents a single flush operation with snapshot
generation metadata
- `FlushLogEntry`: DAO for writing flush log entries to the flush log
table
- `FlushFileInfo`: Metadata for flushed SST files
## What is the link to the Apache JIRA
https://issues.apache.org/jira/browse/HDDS-13874
## How was this patch tested?
GitHub Actions CI:
https://github.com/echonesis/ozone/actions/runs/21389340168
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