view mod_graceful_shutdown/README.markdown @ 5288:f61564b522f7

mod_authz_delegate: introduce module to "link" authorization of hosts See the readme :-). Motivation is allowing Snikket admins to change circle avatars via the web portal without bypassing Prosody access checks.
author Jonas Schäfer <jonas@wielicki.name>
date Wed, 29 Mar 2023 17:21:45 +0200
parents 999e7cb7f6d9
children
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::: {.alert .alert-warning}
This module is an experiment about a more graceful shutdown process.

Graceful shutdown has now been implemented in Prosody trunk and will be
part 0.12. See [issue #1225](https://issues.prosody.im/1225) for
details.
:::

Why
===

When shutting down, a number of sessions, connections and other things
are teared down. Due to all these things happening very quickly,
sometimes e.g. client unavailable notifications don't make it to all
remote contacts because the server-to-server connections are teared down
just after.

How
===

This module works by breaking the shutdown process into separate steps
with a brief pause between them.

It goes something like this

1.  Stop accepting new client connections.
2.  Close all client connections.
3.  Fire event for everything else.
4.  Tell `net.server` to quit the main loop.
5.  ???
6.  Still here? Kill itself.