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Status Tracker for Evaluation Jobs
Provides job status tracking with database persistence.
Handles job state transitions and progress updates.
"""
import uuid
from datetime import datetime
from typing import Dict, Optional
from sqlalchemy import select, update
from sqlalchemy.ext.asyncio import AsyncSession
from backend.db.models import EvaluationRun
from backend.db.session import get_db_context
from backend.logging.logger import get_logger
from .job_schema import (
JobProgressUpdate,
JobStatus,
JobType,
JobPriority,
EvaluationJob,
JobStatusResponse,
)
logger = get_logger("queue.status_tracker", component="queue")
class JobStatusTracker:
"""
Tracks job status and manages state transitions.
Provides methods for:
- Creating new jobs
- Updating job progress
- Querying job status
- Managing job lifecycle
"""
def __init__(self):
self._cache: Dict[str, EvaluationJob] = {}
async def create_job(
self,
job: EvaluationJob,
) -> EvaluationJob:
"""
Create a new job in the database.
Args:
job: The job to create
Returns:
The created job
"""
try:
async with get_db_context() as session:
# Create evaluation run record
run = EvaluationRun(
id=job.job_id,
model_name=job.model_name,
model_version=job.model_version,
dataset_version=job.dataset_version,
status=job.status.value,
config_hash=job.config_hash,
)
session.add(run)
await session.commit()
logger.info(
"Job created",
job_id=str(job.job_id),
job_type=job.job_type,
priority=job.priority,
)
# Cache the job
self._cache[str(job.job_id)] = job
return job
except Exception as e:
logger.error(
"Failed to create job",
job_id=str(job.job_id),
error=str(e),
)
raise
async def update_job_status(
self,
job_id: uuid.UUID,
status: JobStatus,
error: Optional[str] = None,
) -> None:
"""
Update job status in database.
Args:
job_id: The job ID
status: New status
error: Optional error message
"""
try:
async with get_db_context() as session:
stmt = (
update(EvaluationRun)
.where(EvaluationRun.id == job_id)
.values(status=status.value)
)
await session.execute(stmt)
await session.commit()
# Update cache
job_id_str = str(job_id)
if job_id_str in self._cache:
self._cache[job_id_str].status = status
if error:
self._cache[job_id_str].error = error
logger.info(
"Job status updated",
job_id=job_id_str,
status=status.value,
)
except Exception as e:
logger.error(
"Failed to update job status",
job_id=str(job_id),
error=str(e),
)
raise
async def update_job_progress(
self,
progress_update: JobProgressUpdate,
) -> None:
"""
Update job progress in database.
Args:
progress_update: The progress update
"""
try:
job_id_str = str(progress_update.job_id)
# Update cached job
if job_id_str in self._cache:
job = self._cache[job_id_str]
job.completed_samples = progress_update.completed_samples
job.failed_samples = progress_update.failed_samples
if progress_update.composite_score is not None:
job.composite_score = progress_update.composite_score
if progress_update.metrics is not None:
job.metrics = progress_update.metrics
# Calculate progress percentage
if job.total_samples > 0:
total_done = progress_update.completed_samples + progress_update.failed_samples
job.progress = (total_done / job.total_samples) * 100
job.last_checkpoint_at = progress_update.checkpoint_at
# Update database
async with get_db_context() as session:
# Update composite score if available
stmt = select(EvaluationRun).where(
EvaluationRun.id == progress_update.job_id
)
result = await session.execute(stmt)
run = result.scalar_one_or_none()
if run:
if progress_update.composite_score is not None:
run.composite_score = progress_update.composite_score
await session.commit()
logger.debug(
"Job progress updated",
job_id=job_id_str,
completed=progress_update.completed_samples,
failed=progress_update.failed_samples,
)
except Exception as e:
logger.error(
"Failed to update job progress",
job_id=str(progress_update.job_id),
error=str(e),
)
raise
async def get_job_status(
self,
job_id: uuid.UUID,
) -> Optional[JobStatusResponse]:
"""
Get job status from database.
Args:
job_id: The job ID
Returns:
Job status response or None if not found
"""
# Check cache first
job_id_str = str(job_id)
if job_id_str in self._cache:
job = self._cache[job_id_str]
return JobStatusResponse(
job_id=job.job_id,
job_type=JobType(job.job_type),
status=JobStatus(job.status),
progress=job.progress,
total_samples=job.total_samples,
completed_samples=job.completed_samples,
failed_samples=job.failed_samples,
composite_score=job.composite_score,
metrics=job.metrics,
error=job.error,
created_at=job.created_at,
started_at=job.started_at,
completed_at=job.completed_at,
worker_id=job.worker_id,
)
# Fetch from database
try:
async with get_db_context() as session:
stmt = select(EvaluationRun).where(
EvaluationRun.id == job_id
)
result = await session.execute(stmt)
run = result.scalar_one_or_none()
if run is None:
return None
# Build response from DB
return JobStatusResponse(
job_id=run.id,
job_type=JobType.BENCHMARK,
status=JobStatus(run.status),
progress=0.0,
total_samples=0,
completed_samples=0,
failed_samples=0,
composite_score=run.composite_score,
metrics=None,
error=None,
created_at=run.timestamp,
started_at=None,
completed_at=None,
worker_id=None,
)
except Exception as e:
logger.error(
"Failed to get job status",
job_id=str(job_id),
error=str(e),
)
return None
async def complete_job(
self,
job_id: uuid.UUID,
composite_score: Optional[float] = None,
metrics: Optional[dict] = None,
) -> None:
"""
Mark job as completed.
Args:
job_id: The job ID
composite_score: Final composite score
metrics: Final metrics
"""
try:
job_id_str = str(job_id)
async with get_db_context() as session:
stmt = (
update(EvaluationRun)
.where(EvaluationRun.id == job_id)
.values(
status=JobStatus.COMPLETED.value,
composite_score=composite_score,
)
)
await session.execute(stmt)
await session.commit()
# Update cache
if job_id_str in self._cache:
job = self._cache[job_id_str]
job.status = JobStatus.COMPLETED
job.composite_score = composite_score
job.metrics = metrics
job.completed_at = datetime.utcnow()
job.progress = 100.0
logger.info(
"Job completed",
job_id=job_id_str,
composite_score=composite_score,
)
except Exception as e:
logger.error(
"Failed to complete job",
job_id=str(job_id),
error=str(e),
)
raise
async def fail_job(
self,
job_id: uuid.UUID,
error: str,
error_details: Optional[dict] = None,
) -> None:
"""
Mark job as failed.
Args:
job_id: The job ID
error: Error message
error_details: Optional error details
"""
try:
job_id_str = str(job_id)
async with get_db_context() as session:
stmt = (
update(EvaluationRun)
.where(EvaluationRun.id == job_id)
.values(
status=JobStatus.FAILED.value,
)
)
await session.execute(stmt)
await session.commit()
# Update cache
if job_id_str in self._cache:
job = self._cache[job_id_str]
job.status = JobStatus.FAILED
job.error = error
job.error_details = error_details
job.completed_at = datetime.utcnow()
logger.error(
"Job failed",
job_id=job_id_str,
error=error,
)
except Exception as e:
logger.error(
"Failed to mark job as failed",
job_id=str(job_id),
error=str(e),
)
raise
async def start_job(
self,
job_id: uuid.UUID,
worker_id: str,
) -> None:
"""
Mark job as started.
Args:
job_id: The job ID
worker_id: ID of the worker starting the job
"""
try:
job_id_str = str(job_id)
now = datetime.utcnow()
async with get_db_context() as session:
stmt = (
update(EvaluationRun)
.where(EvaluationRun.id == job_id)
.values(
status=JobStatus.RUNNING.value,
)
)
await session.execute(stmt)
await session.commit()
# Update cache
if job_id_str in self._cache:
job = self._cache[job_id_str]
job.status = JobStatus.RUNNING
job.worker_id = worker_id
job.started_at = now
logger.info(
"Job started",
job_id=job_id_str,
worker_id=worker_id,
)
except Exception as e:
logger.error(
"Failed to start job",
job_id=str(job_id),
error=str(e),
)
raise
def get_cached_job(self, job_id: uuid.UUID) -> Optional[EvaluationJob]:
"""Get job from cache."""
return self._cache.get(str(job_id))
def set_cached_job(self, job: EvaluationJob) -> None:
"""Set job in cache."""
self._cache[str(job.job_id)] = job
# Global instance
status_tracker = JobStatusTracker()
def get_status_tracker() -> JobStatusTracker:
"""Get the global status tracker instance."""
return status_tracker
__all__ = [
"JobStatusTracker",
"status_tracker",
"get_status_tracker",
"JobProgressUpdate",
]
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