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annotate mod_graceful_shutdown/README.markdown @ 5872:8aec430ba205
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author | Kim Alvefur <zash@zash.se> |
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date | Thu, 21 Mar 2024 19:44:27 +0100 |
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1 ::: {.alert .alert-warning} |
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2 This module is an experiment about a more graceful shutdown process. |
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3 |
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4 Graceful shutdown has now been implemented in Prosody trunk and will be |
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5 part 0.12. See [issue #1225](https://issues.prosody.im/1225) for |
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6 details. |
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7 ::: |
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8 |
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9 Why |
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10 === |
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11 |
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12 When shutting down, a number of sessions, connections and other things |
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13 are teared down. Due to all these things happening very quickly, |
2818 | 14 sometimes e.g. client unavailable notifications don't make it to all |
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15 remote contacts because the server-to-server connections are teared down |
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16 just after. |
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17 |
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18 How |
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19 === |
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20 |
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21 This module works by breaking the shutdown process into separate steps |
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22 with a brief pause between them. |
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23 |
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24 It goes something like this |
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25 |
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26 1. Stop accepting new client connections. |
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27 2. Close all client connections. |
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28 3. Fire event for everything else. |
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29 4. Tell `net.server` to quit the main loop. |
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30 5. ??? |
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31 6. Still here? Kill itself. |
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32 |