uvicorn 怎么指定线程数目上限？

  • Z时代
  • 2024-02-24
  • 分类：IT

uvicorn 怎么指定线程数目上限？

class Config:
    def __init__(
        self,
        app: Union[ASGIApplication, Callable, str],
        host: str = "127.0.0.1",
        port: int = 8000,
        uds: Optional[str] = None,
        fd: Optional[int] = None,
        loop: LoopSetupType = "auto",
        http: Union[Type[asyncio.Protocol], HTTPProtocolType] = "auto",
        ws: Union[Type[asyncio.Protocol], WSProtocolType] = "auto",
        ws_max_size: int = 16 * 1024 * 1024,
        ws_ping_interval: Optional[float] = 20,
        ws_ping_timeout: Optional[float] = 20,
        ws_per_message_deflate: Optional[bool] = True,
        lifespan: LifespanType = "auto",
        env_file: Optional[Union[str, os.PathLike]] = None,
        log_config: Optional[Union[dict, str]] = LOGGING_CONFIG,
        log_level: Optional[Union[str, int]] = None,
        access_log: bool = True,
        use_colors: Optional[bool] = None,
        interface: InterfaceType = "auto",
        debug: bool = False,
        reload: bool = False,
        reload_dirs: Optional[Union[List[str], str]] = None,
        reload_delay: Optional[float] = None,
        reload_includes: Optional[Union[List[str], str]] = None,
        reload_excludes: Optional[Union[List[str], str]] = None,
        workers: Optional[int] = None,
        proxy_headers: bool = True,
        server_header: bool = True,
        date_header: bool = True,
        forwarded_allow_ips: Optional[str] = None,
        root_path: str = "",
        limit_concurrency: Optional[int] = None,
        limit_max_requests: Optional[int] = None,
        backlog: int = 2048,
        timeout_keep_alive: int = 5,
        timeout_notify: int = 30,
        callback_notify: Callable[..., Awaitable[None]] = None,
        ssl_keyfile: Optional[str] = None,
        ssl_certfile: Optional[Union[str, os.PathLike]] = None,
        ssl_keyfile_password: Optional[str] = None,
        ssl_version: int = SSL_PROTOCOL_VERSION,
        ssl_cert_reqs: int = ssl.CERT_NONE,
        ssl_ca_certs: Optional[str] = None,
        ssl_ciphers: str = "TLSv1",
        headers: Optional[List[List[str]]] = None,
        factory: bool = False,
    ):

我该用哪个呀？

回答：

Uvicorn是单进程的ASGI server，而Gunicorn是可以管理运行多个Uvicorn，也以达到并发与并行的最好效果。

执行以下命令将启动4个Uvicorn进程：

gunicorn -w 4 -k uvicorn.workers.UvicornWorker

Uvicorn本身也提供一个简单的多进程管理方式，但是并不推荐，官网描述如下：

Uvicorn provides a lightweight way to run multiple worker processes, for example --workers 4, but does not provide any process monitoring.

这个--workers 4只是一个轻量级的多进程方式，但不提供任何进程监控功能，所以本质上来说uvicorn还是一个单进程单线程的工具，如果想启动多个进程，可以用--workers参数，也可以用gunicorn这类工具来管理它。

以上是 uvicorn 怎么指定线程数目上限？ 的全部内容， 来源链接： utcz.com/p/938371.html

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