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amphp / parallel

An advanced parallelization library for PHP, enabling efficient multitasking, optimizing resource use, and application responsiveness through multiple CPU threads.
MIT License
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The pool was shut down #195

Closed PNixx closed 6 months ago

PNixx commented 8 months ago

I catch error

\Amp\Parallel\Context\StatusError: The pool was shut down in vendor/amphp/parallel/src/Worker/ContextWorkerPool.php:221

#0 vendor/amphp/parallel/src/Worker/ContextWorkerPool.php(132): Amp\Parallel\Worker\ContextWorkerPool->pull()
#1 src/Process.php(313): Amp\Parallel\Worker\ContextWorkerPool->submit()

To fix the problem, only restarting the process helps. How to automatically restart a worker pool?

trowski commented 8 months ago

Are you receiving this on process shutdown? That's the only reason I can think of why this would be happening outside of explicitly calling shutdown() on ContextWorkerPool.

PNixx commented 8 months ago

I started getting this error when the server ran out of RAM. Even when the memory was freed, the error continued to appear when using a worker pool. Only restarting the service fixed the error.

trowski commented 6 months ago

Came back around to looking at this. My thinking is still the same – something called shutdown() or kill() on the pool instance to cause this exception.

Please take a deeper look at what might be happening here if this is still an issue for you. If you find something, please reopen this issue or create a new one.