bug#65858: mumi crashes

[Christopher Baines <mail@cbaines.net>]

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Maxim Cournoyer <maxim.cournoyer@gmail.com> writes:

> Hi,
>
> Maxim Cournoyer <maxim.cournoyer@gmail.com> writes:
>
>> Hi Arun,
>>
>> Arun Isaac <arunisaac@systemreboot.net> writes:
>>
>>> Hi Maxim,
>>>
>>> I have made a number of changes to mumi and reconfigured berlin with the
>>> latest mumi. Here is a quick summary of the main changes to mumi.
>>>
>>> - We now log the complete URI and the response code for every request to
>>>   mumi.
>>> - We now handle HEAD requests correctly. This should eliminate some of
>>>   the crashes we saw in the mumi log.
>>
>> Thanks!  Let's keep an eye on things.
>
> Here's a fresh crash (on berlin):
>
> 2023-10-24 06:22:58 GET /graphql?query=query%20%7B%0A%20%20issue%28number%3A%2065806%29%20%7B%0A%20%20%20%
> 20open%0A%20%20%7D%0A%7D%0A&variables=%7B%7D 200
> 2023-10-24 06:22:58 GET /issue/29433/attachment/1/ 200
> 2023-10-24 06:22:58 GET /graphql?query=query%20%7B%0A%20%20issue%28number%3A%2065853%29%20%7B%0A%20%20%20%
> 20open%0A%20%20%7D%0A%7D%0A&variables=%7B%7D 200
> 2023-10-24 06:22:58 GET /graphql?query=query%20%7B%0A%20%20issue%28number%3A%2065869%29%20%7B%0A%20%20%20%
> 20open%0A%20%20%7D%0A%7D%0A&variables=%7B%7D 200
> 2023-10-24 06:23:15 GET Uncaught exception in task:
> 2023-10-24 06:23:15 In procedure port-auxiliary-write-buffer: Wrong type argument in position 1 (expecting
>  open port): #<closed: file 7f2ac30077e0>
> 2023-10-24 06:23:15 In fibers.scm:
> 2023-10-24 06:23:15     172:8  6 (_)
> 2023-10-24 06:23:15 In ice-9/boot-9.scm:
> 2023-10-24 06:23:15   1752:10  5 (with-exception-handler _ _ #:unwind? _ # _)
> 2023-10-24 06:23:15 In fibers/web/server.scm:
> 2023-10-24 06:23:15    214:25  4 (_)
> 2023-10-24 06:23:15 In ice-9/suspendable-ports.scm:
> 2023-10-24 06:23:15      83:4  3 (write-bytes #<closed: file 7f2abfe0e770> #vu8(47 42 …) …)
> 2023-10-24 06:23:15 In unknown file:
> 2023-10-24 06:23:15            2 (port-write #<closed: file 7f2abfe0e770> #vu8(47 42 # …) …)
> 2023-10-24 06:23:15 In ice-9/boot-9.scm:
> 2023-10-24 06:23:15   1685:16  1 (raise-exception _ #:continuable? _)
> 2023-10-24 06:23:15   1685:16  0 (raise-exception _ #:continuable? _)
> 2023-10-24 06:23:15 ice-9/boot-9.scm:1685:16: In procedure raise-exception:
> 2023-10-24 06:23:15 In procedure fport_write: Broken pipe

I think this is kind of expected. If NGinx hits the proxy_read_timeout
it'll return a 504 to the client and close the connection to Mumi I
think. I think what you're seeing here is Mumi trying to respond to a
request from NGinx that NGinx has closed.

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