Rasterizing whole libraries of .vsd: manifests, resume checkpoints, and byte/variance checks beat “the folder looks full”
`batch-vsd-jpg` serves inventory sweeps, compliance archives, and crawler exports. Silent per-file failures, clobbered outputs, or inability to rerun one bad row force expensive rewashes. Freeze manifests with source path, page or canvas span, longest edge, quality, object URI, status, byte size, and hash; throttle huge diagrams. Nightly reconcile success rows vs object counts—gaps must close under tickets.
Batch playbook: golden and corrupt pilots pin engine versions, then checkpoint manifests for resume and per-row compensation
- Sample the nastiest, oldest, and a few corrupt .vsd files to validate defaults; data owners sign manifest schemas—no ad-hoc CSV headers that break reconcilers.
- Persist manifest slices every N rows with failure lists; encode repo and path hashes in keys; randomly open JPEGs to catch near-empty outputs and halt on systematic parameter drift.
- Archive manifest hashes plus read-only bucket snapshots; when rerunning failures, skip legally approved customer-facing rows unless a forcing ticket exists.
VSD to JPG (batch) FAQ: manifests, resume, collisions, blank-image detection, compliance seals
Logs say success but object counts lag sources—which manifest columns first?
Inspect row status, skip reasons, and empty output URIs—usual culprits are encoding, locks, or human deletes mid-run, not random engine noise.
Parallel CI writes one prefix—what build fields must manifests capture?
Record pipeline id, commit SHA, image digest, source checksums, and artifact hashes; forbid an unversioned `latest/` prefix as sole truth.
Some JPEGs are suspiciously small—automate detection how?
Apply minimum byte thresholds and luminance variance sampling; flag suspect_blank for manual inspection of white renders vs engine faults.
Duplicate basenames across folders collide when flattened—how to encode directories?
Prefix outputs with path hashes or repo names in manifests; never flatten to single-level filenames across trees.
Regulators want a point-in-time snapshot—is CSV alone enough?
No—seal bucket versions or read-only snapshots and hash the manifest file; spreadsheets alone are mutable and fail non-repudiation.