Marc Hörsken

@pheiduck do you have an idea why "macOS arm64 libssh2" is failing here?

@pheiduck tried the openssh server from Homebrew, but unfortunately that does not seem to help. I would guess that libssh2 is not modern enough, so the problem is the other...

I think I found a solution, let's see what the CI will say.

I am still not sure if using `sh_addentry` this way is correct, but I am now requesting review on this PR in general.

> The regular fd part if I recall the sockets should already have entries, and if they don't I can't readily tell if it's ok to create one without setting...

Thanks to both of you. I tried to incorporate your feedback, @jay.

Here is another [thead-dump.txt](https://github.com/TheHive-Project/Cortex/files/6640309/cortex.txt) of the same situation, maybe it helps.

I think I finally found the root cause. I switched on all debug logs and could identify that Cortex is very busy putting artifacts into Elasticsearch and it seems like...

It really looks like the workaround implemented with https://github.com/TheHive-Project/elastic4play/issues/97 is not sufficient, because operations running in the same execution context can still block each other. Or at least long-running operations...

Just for the record: increasing search/scroll context number and timeout limits did not help!