Mercurial > prosody-modules
comparison mod_graceful_shutdown/README.markdown @ 2170:4652a112a4ba
mod_graceful_shutdown: Experiment in improving the shutdown experience
| author | Kim Alvefur <zash@zash.se> |
|---|---|
| date | Thu, 05 May 2016 15:43:01 +0200 |
| parents | |
| children | 88474dd1af48 |
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| 2169:9fa588babbba | 2170:4652a112a4ba |
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| 1 This module is an experiment about a more graceful shutdown process. | |
| 2 | |
| 3 Why | |
| 4 === | |
| 5 | |
| 6 When shutting down, a number of sessions, connections and other things | |
| 7 are teared down. Due to all these things happening very quickly, | |
| 8 sometimes eg client unavailable notifications don't make it to all | |
| 9 remote contacts because the server-to-server connections are teared down | |
| 10 just after. | |
| 11 | |
| 12 How | |
| 13 === | |
| 14 | |
| 15 This module works by breaking the shutdown process into separate steps | |
| 16 with a brief pause between them. | |
| 17 | |
| 18 It goes something like this | |
| 19 | |
| 20 1. Stop accepting new client connections. | |
| 21 2. Close all client connections. | |
| 22 3. Fire event for everything else. | |
| 23 4. Tell `net.server` to quit the main loop. | |
| 24 5. ??? | |
| 25 6. Still here? Kill itself. | |
| 26 |