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sageLLM Control Plane - Intelligent request routing, scheduling, and engine lifecycle management

Project description

sageLLM Control Plane

Protocol Compliance (Mandatory)

  • MUST follow Protocol v0.1: Protocol v0.1
  • Any globally shared definitions (fields, error codes, metrics, IDs, schemas) MUST be added to Protocol first.

CI Status PyPI version Python Versions License Code style: ruff

Intelligent request routing, scheduling, and engine lifecycle management for sageLLM.

职责定位

Control Plane 位于用户/Gateway 与执行引擎之间,负责:

  • 注册与健康管理引擎
  • 请求路由与调度(含 PD 分离场景)
  • 负载均衡与基础扩缩容钩子

依赖关系

PyPI 包名isagellm-control-plane导入命名空间sagellm_control

依赖(以 pyproject.toml 为准):

  • isagellm-protocol>=0.4.0.0,<0.5.0
  • pydantic>=2.0.0
  • httpx>=0.24.0

可选(用于本地直接执行引擎):

  • isagellm-core(提供 LLMEngine

被以下组件使用(示例):

  • sagellm(统一入口/CLI)
  • sagellm-gateway(API 网关)

安装指南

pip install isagellm-control-plane

Requirements: Python 3.11+

快速开始(CPU-first,可运行)

import asyncio

from sagellm_control import ControlPlaneManager, EngineState, ExecutionInstanceType
from sagellm_protocol import Request


async def main() -> None:
    cp = ControlPlaneManager(scheduling_policy="fifo", routing_strategy="least_loaded", mode="local")

    cp.register_engine(
        engine_id="engine-001",
        model_id="Qwen2-7B",
        host="localhost",
        port=8001,
        engine_kind="llm",
        metadata={"instance_type": ExecutionInstanceType.GENERAL.value},
    )
    cp.update_engine_state("engine-001", EngineState.READY)

    req = Request(
        request_id="req-001",
        trace_id="trace-001",
        model="Qwen2-7B",
        prompt="Hello",
        max_tokens=16,
        stream=False,
    )

    decision = await cp.schedule_request(
        request_id=req.request_id,
        trace_id=req.trace_id,
        model_id=req.model,
        prompt=req.prompt,
        max_tokens=req.max_tokens,
    )
    print(decision)

    cp.unregister_engine("engine-001")


if __name__ == "__main__":
    asyncio.run(main())

完整演示见 examples/mvp_integration_demo.py

Scheduler IR 模块使用说明

Control Plane 内置 Scheduler IR(Intermediate Representation)模块,用于把请求调度过程表达为可优化图结构:

  • IRBuilder:把请求构建为 SchedulerIR(Task/Prefill/Decode 节点 + 依赖边)
  • IROptimizer:执行可插拔优化 Pass(如 KVReusePassComputeCommOverlapPass
  • DefaultIRExecutor:把 IR 翻译为执行命令并通过 Control Plane/Engine Client 执行

可直接从根包导入:

from sagellm_control import IRBuilder, IROptimizer, DefaultIRExecutor

示例程序(至少 3 个):

运行示例:

python examples/ir_basic_example.py
python examples/ir_optimization_example.py
python examples/ir_kv_aware_example.py

API 文档(核心接口)

  • ControlPlaneManager
    • register_engine() / unregister_engine() / list_engines()
    • schedule_request()
    • execute_request() / stream_request()
    • get_embeddings()
  • EngineClient(HTTP 调用执行引擎)
  • LocalEngineClient(本地直接调用引擎)
  • Scheduler IRSchedulerIR, IRBuilder, IROptimizer, DefaultIRExecutor
  • SchedulingPolicy 及内置策略(FIFOPolicy, PriorityPolicy, SLOAwarePolicy, AdaptivePolicy, KVAwareSchedulingPolicy
  • 关键类型:EngineInfo, EngineState, SchedulingDecision, RequestPriority, RequestType

架构图示

flowchart LR
    A[Gateway/Client] --> B[ControlPlaneManager]
    B --> C[SchedulingPolicy]
    B --> D[RequestRouter/LoadBalancer]
    B --> E[EngineLifecycleManager]
    D --> F[EngineClient (HTTP)]
    B --> G[LocalEngineClient]
    F --> H[Execution Engines]
    G --> H

代码结构

sagellm_control/
├── types.py             # Core data types (EngineInfo, SchedulingDecision, etc.)
├── policies/            # Scheduling policies (FIFO, Priority, SLO-aware, Adaptive)
├── router.py            # Request routing and load balancing
├── lifecycle.py         # Engine lifecycle management
├── scaling.py           # Scaling manager (MVP hooks)
├── engine_client.py     # HTTP client to engines
├── local_engine_client.py # Local (in-process) engine client
├── ir/                  # Scheduler IR (types/builder/optimizer/executor)
└── manager.py           # ControlPlaneManager

开发指南

git clone git@github.com:intellistream/sagellm-control-plane.git
cd sagellm-control-plane
./quickstart.sh --dev

Quickstart 模式说明:

  • --standard:依赖优先从 PyPI 安装,当前仓库本地 editable 安装(稳定/发布导向)
  • --dev:在 standard 基础上,自动尝试将本地相邻子仓库切换为 editable(--no-deps 覆盖)
  • 每次安装前会动态清理已安装的 isagellm-* 历史包,保证流程可重入
# 标准模式(默认稳定依赖)
./quickstart.sh --standard

# 开发联调模式(本地 editable 覆盖)
./quickstart.sh --dev

# 查看帮助
./quickstart.sh --help

# 或手动安装
pip install -e ".[dev]"

运行测试:

pytest tests/ -v

Lint/格式化:

ruff format .
ruff check . --fix

提交流程:

  • 创建 Issue
  • fix/#123-xxx 分支开发
  • 提交 PR 到 main-dev

版本信息

Related Repositories


License

Proprietary - IntelliStream

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