[feat]: Out of Memory Error notifications

[Blu-J]

Prerequisites

• I have searched for existing issues that already suggest this feature, without success.

Describe the Feature Request

This is an improvement upon the description coming from the os + docker describing that a service was killed because of the out of memory

Describe the Use Case

So, given that we have a bitcoind and we may give it too much memory, we want to know that the system is being restarted because of memory out instead of what the OS is giving. So this is a server UI around the crashing because of memory out.

Describe Preferred Solution

From the error code indicate that this was a out of memory kill.,

Describe Alternatives

No response

Anything else?

No response

[dr-bonez]

Ok, so it turns out the exit code for running out of memory is the same exit code used for any application terminated by SIGKILL. Looking for other ways to differentiate.

[ProofOfKeags]

Usually the only reason the OS will send an unprompted SIGKILL is for OOM.

[dr-bonez]

docker will send a sigkill if a sigterm times out

[chrisguida]

sigterm is only sent by embassyd though, not the base os

[ProofOfKeags]

docker will send a sigkill if a sigterm times out

so all we need to do is pair stop requests with signals.

All signals that don't have a stop request are OOM issues.

[chrisguida]

Aiden notes that docker figures this out somehow, we should figure out what that is and duplicate