grpc server shutdown

Jeff

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Aug 20, 2019, 6:18:52 PM8/20/19

to grpc.io

If shutdown is called on a server more than once, is the behavior defined? Is it safe to do this or is there a chance of a crash?

Yang Gao

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Aug 21, 2019, 1:13:41 PM8/21/19

to grpc.io

It is safe to call Shutdown more than once.

Juanli Shen

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Aug 21, 2019, 1:15:00 PM8/21/19

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It's definitely not the expected usage. And from the API comment, I believe there is no guarantee that this will work in the future even if it worked now.

Why would you want to shut down a sever multiple times?

On Tuesday, August 20, 2019 at 3:18:52 PM UTC-7, Jeff wrote:

Jeff Steger

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Aug 21, 2019, 3:37:52 PM8/21/19

to Juanli Shen, grpc.io

That’s like saying, ‘why would u want to call delete on a null pointer’ (in C++). Well, because in some cases it is convenient to do so (rather than pathologically checking for null every single time you delete something). Deleting a null pointer is harmless, and shutting down a server that is already shutdown should imo also be harmless. But there is no documentation I have read that makes it clear either way, and there really should be. Does anyone have a definitive answer to this?

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