view mod_graceful_shutdown/README.markdown @ 5617:d8622797e315

mod_http_oauth2: Shorten default token validity periods With refresh tokens, short lifetime for access tokens is not a problem. The arbitrary choice of one hour seems reasonable. RFC 6749 has it as example value. One week for refresh tokens matching the default archive retention period. This means that a client that remains unused for one week will have to sign in again. An actively used client will continually push that forward with each used refresh token.
author Kim Alvefur <zash@zash.se>
date Mon, 24 Jul 2023 01:30:14 +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.