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81 lines
2.9 KiB
Python
81 lines
2.9 KiB
Python
# Copyright (c) Meta Platforms, Inc. and affiliates.
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# All rights reserved.
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#
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# This source code is licensed under the terms described in the LICENSE file in
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# the root directory of this source tree.
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from collections.abc import Awaitable, Callable
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from ..api import JobStatus, Scheduler
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from ..config import CelerySchedulerConfig
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class CelerySchedulerImpl(Scheduler):
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"""
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Celery-based scheduler implementation for distributed multi-worker deployments.
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This scheduler uses Celery to distribute jobs across multiple worker processes
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or machines. It provides:
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- Persistent job queue (via Redis/RabbitMQ broker)
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- Multi-worker coordination
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- Crash recovery (jobs survive server restarts)
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- Distributed task execution
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This is suitable for:
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- Production deployments
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- Multi-worker scenarios
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- High availability requirements
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"""
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def __init__(self, config: CelerySchedulerConfig):
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self.config = config
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self._job_executors: dict[str, Callable[[dict], Awaitable[dict]]] = {}
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# TODO: Initialize Celery app with broker and result backend
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raise NotImplementedError("Celery scheduler not yet implemented")
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def register_job_executor(
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self,
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job_type: str,
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executor: Callable[[dict], Awaitable[dict]],
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) -> None:
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"""Register a job executor function for a specific job type."""
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self._job_executors[job_type] = executor
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async def initialize(self) -> None:
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"""Initialize the Celery scheduler."""
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raise NotImplementedError("Celery scheduler not yet implemented")
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async def shutdown(self) -> None:
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"""Gracefully shutdown the Celery scheduler."""
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raise NotImplementedError("Celery scheduler not yet implemented")
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async def schedule_job(
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self,
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job_type: str,
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job_data: dict,
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metadata: dict | None = None,
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) -> str:
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"""Schedule a new job for execution via Celery."""
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raise NotImplementedError("Celery scheduler not yet implemented")
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async def get_job_info(self, job_id: str) -> dict:
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"""Get complete information about a job from Celery result backend."""
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raise NotImplementedError("Celery scheduler not yet implemented")
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async def cancel_job(self, job_id: str) -> bool:
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"""Cancel a pending or running Celery job."""
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raise NotImplementedError("Celery scheduler not yet implemented")
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async def delete_job(self, job_id: str) -> bool:
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"""Delete a completed or cancelled job from Celery result backend."""
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raise NotImplementedError("Celery scheduler not yet implemented")
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async def list_jobs(
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self,
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job_type: str | None = None,
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status: JobStatus | None = None,
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limit: int = 100,
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offset: int = 0,
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) -> list[dict]:
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"""List jobs from Celery result backend with optional filtering."""
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raise NotImplementedError("Celery scheduler not yet implemented")
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