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perf: rewrite batch download_zip to stream via temp file instead of RAM

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- Replace in-memory Cursor<Vec<u8>> with async_zip + NamedTempFile (O(256KB) RAM)
- Stream ZIP to client via ReaderStream instead of materializing entire archive
- Replace N+1 BFS folder traversal with 2 bulk ltree queries
- Remove dead zip_service field and with_zip_service() from BatchOperationService
- Remove synchronous zip crate dependency (only async_zip remains)
- Eliminates ~2.5GB RAM spike per 2GB batch download
This commit is contained in:
Dionisio
2026-02-25 23:12:19 +01:00
parent 23474b9681
commit 5f883aa0f8
5 changed files with 176 additions and 347 deletions
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Cargo.lock
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-204
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@@ -8,17 +8,6 @@ version = "2.0.1"
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[[package]]
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@@ -1883,7 +1783,6 @@ dependencies = [
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