Message 413967 - Python tracker

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Author	achimnol
Recipients	achimnol, asvetlov, gvanrossum, yselivanov
Date	2022-02-25.07:03:06
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1645772586.38.0.654475017437.issue46843@roundup.psfhosted.org>
In-reply-to

Content
Anoter case: https://github.com/lablup/backend.ai-manager/pull/533 https://github.com/lablup/backend.ai-agent/pull/341 When shutting down the application, I'd like to explicitly cancel the shielded tasks, while keep them shielded before shutdown. So I inserted `ptaskgroup.create_task()` inside `asyncio.shield()`, so that the tasks are not cancelled upon the cancellation of their callers but they get cancelled when the server shuts down. This pattern is conveniently implemented with PersistentTaskGroup.

Anoter case:

https://github.com/lablup/backend.ai-manager/pull/533
https://github.com/lablup/backend.ai-agent/pull/341

When shutting down the application, I'd like to explicitly cancel the shielded tasks, while keep them shielded before shutdown.

So I inserted `ptaskgroup.create_task()` inside `asyncio.shield()`, so that the tasks are not cancelled upon the cancellation of their callers but they get cancelled when the server shuts down.

This pattern is conveniently implemented with PersistentTaskGroup.

History
Date	User	Action	Args
2022-02-25 07:03:06	achimnol	set	recipients: + achimnol, gvanrossum, asvetlov, yselivanov
2022-02-25 07:03:06	achimnol	set	messageid: <1645772586.38.0.654475017437.issue46843@roundup.psfhosted.org>
2022-02-25 07:03:06	achimnol	link	issue46843 messages
2022-02-25 07:03:06	achimnol	create