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annotate mod_graceful_shutdown/README.markdown @ 4993:f36d15107c15

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mod_http_muc_log: Use stanza:find to save a few bytes Why don't we have a stanza:get_child_attr(name, namespace, attrname) ?
author Kim Alvefur <zash@zash.se>
date Tue, 16 Aug 2022 01:45:28 +0200
parents 999e7cb7f6d9
children
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999e7cb7f6d9 mod_graceful_shutdown: Add a banner saying no longer needed with trunk
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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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999e7cb7f6d9 mod_graceful_shutdown: Add a banner saying no longer needed with trunk
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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.
999e7cb7f6d9 mod_graceful_shutdown: Add a banner saying no longer needed with trunk
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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,
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88474dd1af48 Various READMEs: s/eg/e.g.g/
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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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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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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