fix(jobs): bind completed effects to checkpoints

This commit is contained in:
2026-07-12 04:54:00 +02:00
parent c964920f16
commit b6a52995ae
5 changed files with 174 additions and 7 deletions
@@ -71,3 +71,24 @@ Fresh fix-wave verification:
- Available harness suite (same sandbox exclusions described above):
`579 passed, 5 deselected, 31 warnings`.
- Scoped Ruff and `git diff --check`: clean.
## Final P1 fix — effect state and checkpoint-bound manifest roots
- Stage checkpoints now distinguish `intent` from `completed`. Vector intent is atomically sealed
and checkpointed before upsert. A process-level `BaseException` after a partial multi-record
write leaves the stage `running/intent`; resume never promotes it and instead reconciles
`existing_hashes`, writing only the missing records. The completed state is persisted only after
reconciliation returns successfully.
- Every stage now persists its completed artifact state while still `running`, before the
post-call fault hook. The checkpoint binds the SHA-256 of canonical `artifact-manifest.json`,
effect state, exact producer stage, and exact required-file mapping. Resume validates this root
and all bindings before promotion or copying.
- Added process-interruption coverage proving the already-written vector record is not submitted
twice, remaining records are written, and publish completes only after reconciliation. Added
coordinated artifact/manifest, spec-binding, and producer-binding tamper rejection tests.
Fresh verification:
- Focused jobs/corpus/CLI/search suite: `86 passed, 18 warnings`.
- Available broad harness suite: `583 passed, 5 deselected, 32 warnings`.
- Scoped Ruff and `git diff --check`: clean.
+48
View File
@@ -62,6 +62,22 @@ class Vectors:
return 0
class InterruptingVectors(Vectors):
def __init__(self):
super().__init__()
self.batches = []
self.interrupt = True
def upsert(self, collection, records):
self.batches.append([value.record.id for value in records])
if self.interrupt:
self.interrupt = False
self.records.append(records[0])
raise KeyboardInterrupt("process interruption after partial write")
self.records.extend(records)
return len(records)
def item(name, fingerprint):
return SourceObject(
source_id=f"fs:{name}", uri=f"file:///safe/{name}.md", fingerprint=f"sha256:{fingerprint}"
@@ -309,3 +325,35 @@ def test_job_pipeline_rejects_corrupt_required_artifacts_before_resume(
input_fingerprint="sha256:" + "2" * 64,
resume_run_id=crashed.name,
)
def test_vector_intent_is_reconciled_after_process_interruption_without_duplicate_upsert(tmp_path):
one = item("one", "a")
vectors = InterruptingVectors()
candidate = pipeline(
tmp_path, Source([(one, "a" * 250)]), vectors=vectors,
policy=ChunkPolicy(version="chunk-v1", max_chars=100),
)
with pytest.raises(KeyboardInterrupt):
candidate.run_as_job(
workspace_id="demo", workspace_root=tmp_path,
config_fingerprint="sha256:" + "1" * 64,
input_fingerprint="sha256:" + "2" * 64,
)
runs = tmp_path / ".tht-jobs" / "evidence" / "runs"
interrupted = next(runs.iterdir())
checkpoint = __import__("json").loads((interrupted / "checkpoint.json").read_text())
vector_stage = checkpoint["stages"][3]
assert vector_stage["status"] == "running"
assert vector_stage["effect_state"] == "intent"
first_written = vectors.batches[0][0]
result = candidate.run_as_job(
workspace_id="demo", workspace_root=tmp_path,
config_fingerprint="sha256:" + "1" * 64,
input_fingerprint="sha256:" + "2" * 64,
resume_run_id=interrupted.name,
)
assert result.status == "succeeded" and result.published is True
assert first_written not in vectors.batches[1]
assert len(vectors.records) == 3
+28
View File
@@ -145,6 +145,34 @@ def test_nonexistent_well_formed_resume_run_id_is_rejected(tmp_path):
run_job(_spec(tmp_path).with_resume("a" * 32), [lambda _context: None])
@pytest.mark.parametrize("tamper", ["artifact_and_manifest", "spec", "producer"])
def test_resume_rejects_manifest_root_or_binding_tamper(tmp_path, tamper):
def stage(context):
artifacts = context.run_dir / "artifacts"
artifacts.mkdir()
(artifacts / "effect.json").write_text("ok")
return StageArtifacts(("effect.json",))
report = run_job(_spec(tmp_path), [stage])
artifacts = tmp_path / ".tht-jobs" / "evidence" / "runs" / report.run_id / "artifacts"
manifest_path = artifacts / "artifact-manifest.json"
manifest = json.loads(manifest_path.read_text())
if tamper == "artifact_and_manifest":
(artifacts / "effect.json").write_text("evil")
digest = __import__("hashlib").sha256(b"evil").hexdigest()
manifest["stages"]["stage"]["files"]["effect.json"] = {
"sha256": digest, "size": 4,
}
elif tamper == "spec":
manifest["spec_fingerprint"] = "sha256:" + "0" * 64
else:
manifest["stages"]["other"] = manifest["stages"].pop("stage")
manifest_path.write_text(json.dumps(manifest, sort_keys=True, separators=(",", ":")) + "\n")
with pytest.raises(CorruptCheckpointError, match="artifact"):
run_job(_spec(tmp_path).with_resume(report.run_id), [stage])
def test_successful_job_is_idempotently_resumable(tmp_path):
calls = []
+15 -1
View File
@@ -15,6 +15,7 @@ _RUN_ID = re.compile(r"^[0-9a-f]{32}$")
_FINGERPRINT = re.compile(r"^sha256:[0-9a-f]{64}$")
JobStatus = Literal["pending", "running", "succeeded", "failed"]
StageStatus = Literal["pending", "running", "succeeded", "failed"]
EffectState = Literal["intent", "completed"]
def utc_now() -> datetime:
@@ -110,13 +111,22 @@ class StageRun(_FrozenModel):
started_at: datetime | None = None
finished_at: datetime | None = None
error: StageError | None = None
effect_state: EffectState | None = None
artifact_manifest_digest: str | None = None
artifact_files: tuple[str, ...] = ()
_name_key = field_validator("name")(_validate_job_key)
_artifact_digest = field_validator("artifact_manifest_digest")(
lambda value: value if value is None or _FINGERPRINT.fullmatch(value) else _invalid_fingerprint()
)
@model_validator(mode="after")
def state_shape(self) -> "StageRun":
if self.status == "pending" and any(
value is not None for value in (self.started_at, self.finished_at, self.error)
value is not None for value in (
self.started_at, self.finished_at, self.error, self.effect_state,
self.artifact_manifest_digest,
)
):
raise ValueError("pending stage cannot contain timestamps or error")
if self.status == "running" and (
@@ -131,6 +141,10 @@ class StageRun(_FrozenModel):
self.started_at is None or self.finished_at is None or self.error is None
):
raise ValueError("failed stage requires timestamps and safe error")
if (self.effect_state is None) != (self.artifact_manifest_digest is None):
raise ValueError("effect state and artifact manifest digest must be persisted together")
if self.artifact_files and self.effect_state is None:
raise ValueError("artifact files require a persisted effect state")
return self
+62 -6
View File
@@ -35,6 +35,14 @@ class JobContext:
dry_run: bool
workspace_root: Path
run_dir: Path
_record_artifacts: Callable[[str, tuple[str, ...], str], None] | None = None
def record_artifacts(
self, stage: str, required: tuple[str, ...], effect_state: str,
) -> None:
if self._record_artifacts is None:
raise RuntimeError("artifact recorder is unavailable")
self._record_artifacts(stage, required, effect_state)
Stage = Callable[[JobContext], Any]
@@ -45,7 +53,7 @@ def _artifact_digest(path: Path) -> dict[str, Any]:
return {"sha256": hashlib.sha256(payload).hexdigest(), "size": len(payload)}
def _seal_artifacts(context: JobContext, stage: str, result: Any, spec: JobSpec) -> None:
def _seal_artifacts(context: JobContext, stage: str, result: Any, spec: JobSpec) -> str:
required = result.required if isinstance(result, StageArtifacts) else ()
root = context.run_dir / "artifacts"
root.mkdir(exist_ok=True)
@@ -68,14 +76,16 @@ def _seal_artifacts(context: JobContext, stage: str, result: Any, spec: JobSpec)
prior["required"].remove(relative)
prior["files"].pop(relative, None)
manifest["stages"][stage] = {"required": list(required), "files": files}
_atomic_write(manifest_path, json.dumps(manifest, sort_keys=True, separators=(",", ":")) + "\n")
canonical = json.dumps(manifest, sort_keys=True, separators=(",", ":")) + "\n"
_atomic_write(manifest_path, canonical)
return _value_fingerprint(canonical)
def seal_stage_artifacts(
context: JobContext, stage: str, required: tuple[str, ...], spec: JobSpec,
) -> None:
"""Durably record external-effect intent before a stage performs that effect."""
_seal_artifacts(context, stage, StageArtifacts(required), spec)
context.record_artifacts(stage, required, "intent")
def _validate_artifacts(run_dir: Path, spec: JobSpec, source: JobRun) -> set[str]:
@@ -86,6 +96,7 @@ def _validate_artifacts(run_dir: Path, spec: JobSpec, source: JobRun) -> set[str
return set()
try:
manifest = json.loads(manifest_path.read_text())
root_digest = _value_fingerprint(manifest_path.read_text())
if manifest["spec_fingerprint"] != _compatibility_fingerprint(spec, list(spec.stage_ids)):
raise ValueError
sealed = set(manifest["stages"])
@@ -100,6 +111,16 @@ def _validate_artifacts(run_dir: Path, spec: JobSpec, source: JobRun) -> set[str
allowed.add(relative)
if not successful.issubset(sealed):
raise ValueError
for stage in source.stages:
if stage.effect_state is None:
continue
record = manifest["stages"].get(stage.name)
if (
stage.artifact_manifest_digest != root_digest
or record is None
or tuple(record["required"]) != stage.artifact_files
):
raise ValueError
entries = list(root.iterdir())
if any(path.is_symlink() or not path.is_file() for path in entries):
raise ValueError
@@ -113,7 +134,10 @@ def _validate_artifacts(run_dir: Path, spec: JobSpec, source: JobRun) -> set[str
allowed.add("compensated.json")
if actual != allowed:
raise ValueError
return sealed
return {
stage.name for stage in source.stages
if stage.effect_state == "completed"
}
except (OSError, KeyError, TypeError, ValueError, json.JSONDecodeError) as error:
raise CorruptCheckpointError("resume artifact manifest is invalid") from error
@@ -199,6 +223,9 @@ def _resume_run(
resumed_stages.append(StageRun(
name=name, status="succeeded", started_at=previous.started_at or utc_now(),
finished_at=utc_now(),
effect_state="completed",
artifact_manifest_digest=previous.artifact_manifest_digest,
artifact_files=previous.artifact_files,
))
else:
resumed_stages.append(StageRun(name=name))
@@ -254,9 +281,36 @@ def run_job(
if source_artifacts.exists():
shutil.copytree(source_artifacts, run_dir / "artifacts")
_persist(checkpoint_path, run)
context = JobContext(run_id, spec.job_type, spec.dry_run, spec.workspace_root, run_dir)
current_index = -1
def record_artifacts(stage_name: str, required: tuple[str, ...], effect_state: str) -> None:
nonlocal run
if current_index < 0 or run.stages[current_index].name != stage_name:
raise CorruptCheckpointError("artifact producer does not match running stage")
digest = _seal_artifacts(context, stage_name, StageArtifacts(required), spec)
manifest = json.loads((run_dir / "artifacts" / "artifact-manifest.json").read_text())
updated = []
for position, value in enumerate(run.stages):
record = manifest["stages"].get(value.name)
if record is not None and (value.status == "succeeded" or position == current_index):
state = effect_state if position == current_index else value.effect_state
updated.append(value.model_copy(update={
"effect_state": state,
"artifact_manifest_digest": digest,
"artifact_files": tuple(record["required"]),
}))
else:
updated.append(value)
run = run.model_copy(update={"stages": tuple(updated)})
_persist(checkpoint_path, run)
context = JobContext(
run_id, spec.job_type, spec.dry_run, spec.workspace_root, run_dir,
record_artifacts,
)
for index, stage_callable in enumerate(stages):
current_index = index
if run.stages[index].status == "succeeded":
continue
stage = run.stages[index].model_copy(
@@ -285,7 +339,9 @@ def run_job(
)
_persist(checkpoint_path, run)
break
_seal_artifacts(context, stage.name, stage_result, spec)
required = stage_result.required if isinstance(stage_result, StageArtifacts) else ()
context.record_artifacts(stage.name, required, "completed")
stage = run.stages[index]
if after_stage_return is not None:
after_stage_return(context, stage.name)
succeeded = stage.model_copy(update={"status": "succeeded", "finished_at": utc_now()})