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omnigraph/docs/user/constants.md
Ragnor Comerford 4ed2313a80
refactor(engine): remove the legacy __run__ branch guard (MR-770) 
With the v2→v3 migration sweeping stale `__run__*` branches off `__manifest`
on first read-write open, the defense-in-depth `is_internal_run_branch` guard
is no longer needed.

- delete `db/run_registry.rs`; drop the module + re-export from `db/mod.rs`
- collapse `is_internal_system_branch` to the schema-apply-lock check only
- `ensure_public_branch_ref`: drop the run-ref rejection; `__run__*` is now an
  ordinary branch name
- `branch_merge`: reject `is_internal_system_branch` (was run-only) so the
  schema-apply lock is rejected consistently with create/delete — a small,
  deliberate tightening
- update the inline schema-apply test + the writes integration tests
  (`public_branch_apis_reject_internal_run_refs` →
  `public_branch_apis_reject_internal_system_refs`, which also asserts
  `__run__*` now creates successfully)
- docs: flip the "pending production sweep / defense-in-depth" notes to
  "auto-swept by the v2→v3 migration"; document the read-only-open limitation

Known residual: the inert `_graph_runs.lance` / `_graph_run_actors.lance` bytes
remain until a `StorageAdapter::delete_prefix` primitive lands.
2026-05-31 15:45:32 +02:00

1.4 KiB
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Constants & Tunables (cheat sheet)

Name Value Where
MANIFEST_DIR __manifest db/manifest/layout.rs
Commit graph dir _graph_commits.lance db/commit_graph.rs
Run registry dir (legacy, removed MR-771) _graph_runs.lance inert post-v0.4.0; bytes remain until a delete_prefix primitive lands
Run branch prefix (legacy, removed MR-771/MR-770) __run__ swept off __manifest by the v2→v3 migration; no longer a reserved name
Schema apply lock __schema_apply_lock__ db/mod.rs
Manifest publisher retry budget PUBLISHER_RETRY_BUDGET = 5 db/manifest/publisher.rs
Internal manifest schema version INTERNAL_MANIFEST_SCHEMA_VERSION = 3 db/manifest/migrations.rs
Merge stage batch MERGE_STAGE_BATCH_ROWS = 8192 exec/merge.rs
Maintenance concurrency OMNIGRAPH_MAINTENANCE_CONCURRENCY=8 db/omnigraph/optimize.rs
Graph index cache size 8 (LRU) runtime_cache.rs
Default body limit 1 MB omnigraph-server/lib.rs
Ingest body limit 32 MB omnigraph-server/lib.rs
Engine embed model gemini-embedding-2-preview omnigraph/embedding.rs
Compiler embed model text-embedding-3-small omnigraph-compiler/embedding.rs
Embed timeout 30 000 ms both clients
Embed retries 4 both clients
Embed retry backoff 200 ms both clients
LANCE memory pool default 1 GB (raised in v0.3.0) runtime