#418 · bluetape4k-projects · 2.0.0

NetCDF 2D CF Import & Progress Lab

Play coordinate resolution, bounded two-pass import, and recovery state as three synchronized lanes without hiding caller-owned policy.

Choose a scenario
Step0 / 10

Coordinate semantics

CF axes · CRS · cell identity

waiting
  1. 01Before registration
  2. 02Register file identity
  3. 03Resolve coordinate axes
  4. 04Bind CF semantics
  5. 05Validate coordinates and shape
  6. 06Plan sequential slices and tiles
  7. 07First pass: duplicate preflight
  8. 08Second pass: sequential writes
  9. 09Commit the slice checkpoint
  10. 10Resolve timeout and worker ownership
  11. 11Complete or make retry explicit
What happens

Guardrail

What follows

Budget / state

Bounded import

one worker · two passes · fenced commits

waiting
  1. 01Before registration
  2. 02Register file identity
  3. 03Resolve coordinate axes
  4. 04Bind CF semantics
  5. 05Validate coordinates and shape
  6. 06Plan sequential slices and tiles
  7. 07First pass: duplicate preflight
  8. 08Second pass: sequential writes
  9. 09Commit the slice checkpoint
  10. 10Resolve timeout and worker ownership
  11. 11Complete or make retry explicit
What happens

Guardrail

What follows

Budget / state

Progress & recovery

durable state · checkpoint · retry gate

waiting
  1. 01Before registration
  2. 02Register file identity
  3. 03Resolve coordinate axes
  4. 04Bind CF semantics
  5. 05Validate coordinates and shape
  6. 06Plan sequential slices and tiles
  7. 07First pass: duplicate preflight
  8. 08Second pass: sequential writes
  9. 09Commit the slice checkpoint
  10. 10Resolve timeout and worker ownership
  11. 11Complete or make retry explicit
What happens

Guardrail

What follows

Budget / state

Library guarantees

The library resolves CF coordinates, enforces resource ceilings, performs sequential two-pass imports, fences tile work, and maintains durable progress.

│ explicit boundary │
Caller owns

The caller owns authentication and authorization, tenant and root selection, executors, deadlines, retry policy, DTO redaction, and every injected resource lifecycle.