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add timeout_worker_is_alive as an option for main.run. #2397

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add timeout_worker_is_alive as an option for main.run. #2397

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3587023
add timeout_worker_is_alive as an option for main.run.
socrateslee Jul 25, 2024
9676be8
add the command line option for --timeout-worker-is-alive in docs
socrateslee Jul 25, 2024
f1873bc
add --timeout-worker-is-alive in docs/deployment
socrateslee Aug 1, 2024
e5e5d1e
Merge branch 'master' into feature/timeout_worker_is_alive
abersheeran Oct 23, 2024
bf05fe4
Merge branch 'master' into feature/timeout_worker_is_alive
Kludex Nov 20, 2024
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3 changes: 3 additions & 0 deletions docs/deployment.md
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Original file line number Diff line number Diff line change
Expand Up @@ -114,6 +114,9 @@ Options:
--timeout-graceful-shutdown INTEGER
Maximum number of seconds to wait for
graceful shutdown.
--timeout-worker-is-alive FLOAT
Maximum number of seconds to wait for
judging if a worker process is alive.
--ssl-keyfile TEXT SSL key file
--ssl-certfile TEXT SSL certificate file
--ssl-keyfile-password TEXT SSL keyfile password
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3 changes: 3 additions & 0 deletions docs/index.md
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Expand Up @@ -184,6 +184,9 @@ Options:
--timeout-graceful-shutdown INTEGER
Maximum number of seconds to wait for
graceful shutdown.
--timeout-worker-is-alive FLOAT
Maximum number of seconds to wait for
judging if a worker process is alive.
--ssl-keyfile TEXT SSL key file
--ssl-certfile TEXT SSL certificate file
--ssl-keyfile-password TEXT SSL keyfile password
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2 changes: 2 additions & 0 deletions uvicorn/config.py
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Expand Up @@ -212,6 +212,7 @@ def __init__(
timeout_keep_alive: int = 5,
timeout_notify: int = 30,
timeout_graceful_shutdown: int | None = None,
timeout_worker_is_alive: float = 5,
callback_notify: Callable[..., Awaitable[None]] | None = None,
ssl_keyfile: str | os.PathLike[str] | None = None,
ssl_certfile: str | os.PathLike[str] | None = None,
Expand Down Expand Up @@ -256,6 +257,7 @@ def __init__(
self.timeout_keep_alive = timeout_keep_alive
self.timeout_notify = timeout_notify
self.timeout_graceful_shutdown = timeout_graceful_shutdown
self.timeout_worker_is_alive = timeout_worker_is_alive
self.callback_notify = callback_notify
self.ssl_keyfile = ssl_keyfile
self.ssl_certfile = ssl_certfile
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10 changes: 10 additions & 0 deletions uvicorn/main.py
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Expand Up @@ -282,6 +282,12 @@ def print_version(ctx: click.Context, param: click.Parameter, value: bool) -> No
default=None,
help="Maximum number of seconds to wait for graceful shutdown.",
)
@click.option(
"--timeout-worker-is-alive",
type=float,
default=5,
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I'm not sure this is wanted as default value?

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Ah, I've mentioned before: #2397 (comment)

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Yes, it's a good default value for most programs. Only those with heavy loads require larger values.

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Additionally, the default timeout for a single request in httpx is also 5 seconds.

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@lightbeem3296 lightbeem3296 Oct 26, 2024 •
edited
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Failed some checks. Can I fix it?

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Yes, please fix it.

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There's an unrelated issue on the pipeline.

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Hi @Kludex ,
I think, it's not only current branch issue.
Your master branch doesn't pass scripts/test too.
Could you please checkout?
image

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Yes, it's a good default value for most programs. Only those with heavy loads require larger values.

Well... Those with heavy loads will have to change this. Which is a bothersome for them.

help="Maximum number of seconds to wait for judging if a worker process is alive.",
)
@click.option("--ssl-keyfile", type=str, default=None, help="SSL key file", show_default=True)
@click.option(
"--ssl-certfile",
Expand Down Expand Up @@ -396,6 +402,7 @@ def main(
limit_max_requests: int,
timeout_keep_alive: int,
timeout_graceful_shutdown: int | None,
timeout_worker_is_alive: float,
ssl_keyfile: str,
ssl_certfile: str,
ssl_keyfile_password: str,
Expand Down Expand Up @@ -445,6 +452,7 @@ def main(
limit_max_requests=limit_max_requests,
timeout_keep_alive=timeout_keep_alive,
timeout_graceful_shutdown=timeout_graceful_shutdown,
timeout_worker_is_alive=timeout_worker_is_alive,
ssl_keyfile=ssl_keyfile,
ssl_certfile=ssl_certfile,
ssl_keyfile_password=ssl_keyfile_password,
Expand Down Expand Up @@ -497,6 +505,7 @@ def run(
limit_max_requests: int | None = None,
timeout_keep_alive: int = 5,
timeout_graceful_shutdown: int | None = None,
timeout_worker_is_alive: float = 5,
ssl_keyfile: str | os.PathLike[str] | None = None,
ssl_certfile: str | os.PathLike[str] | None = None,
ssl_keyfile_password: str | None = None,
Expand Down Expand Up @@ -549,6 +558,7 @@ def run(
limit_max_requests=limit_max_requests,
timeout_keep_alive=timeout_keep_alive,
timeout_graceful_shutdown=timeout_graceful_shutdown,
timeout_worker_is_alive=timeout_worker_is_alive,
ssl_keyfile=ssl_keyfile,
ssl_certfile=ssl_certfile,
ssl_keyfile_password=ssl_keyfile_password,
Expand Down
2 changes: 1 addition & 1 deletion uvicorn/supervisors/multiprocess.py
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Expand Up @@ -164,7 +164,7 @@ def keep_subprocess_alive(self) -> None:
return # parent process is exiting, no need to keep subprocess alive

for idx, process in enumerate(self.processes):
if process.is_alive():
if process.is_alive(timeout=self.config.timeout_worker_is_alive):
continue

process.kill() # process is hung, kill it
Expand Down
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