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annotate mod_graceful_shutdown/README.markdown @ 4838:fd2e48d4ac94

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mod_bookmarks2: Advertise XEP-0049 support In the case mod_private isn’t loaded, some clients (like poezio) won’t even attempt to use Private XML Storage unless this feature is advertised. This is on the domain JID and not on the account JID!
author Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
date Sun, 26 Dec 2021 14:51:35 +0100
parents 88474dd1af48
children 999e7cb7f6d9
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4652a112a4ba mod_graceful_shutdown: Experiment in improving the shutdown experience
Kim Alvefur <zash@zash.se>
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1 This module is an experiment about a more graceful shutdown process.
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2
4652a112a4ba mod_graceful_shutdown: Experiment in improving the shutdown experience
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3 Why
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4 ===
4652a112a4ba mod_graceful_shutdown: Experiment in improving the shutdown experience
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5
4652a112a4ba mod_graceful_shutdown: Experiment in improving the shutdown experience
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6 When shutting down, a number of sessions, connections and other things
4652a112a4ba mod_graceful_shutdown: Experiment in improving the shutdown experience
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7 are teared down. Due to all these things happening very quickly,
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88474dd1af48 Various READMEs: s/eg/e.g.g/
Kim Alvefur <zash@zash.se>
parents: 2170
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8 sometimes e.g. client unavailable notifications don't make it to all
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4652a112a4ba mod_graceful_shutdown: Experiment in improving the shutdown experience
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9 remote contacts because the server-to-server connections are teared down
4652a112a4ba mod_graceful_shutdown: Experiment in improving the shutdown experience
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10 just after.
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11
4652a112a4ba mod_graceful_shutdown: Experiment in improving the shutdown experience
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12 How
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13 ===
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14
4652a112a4ba mod_graceful_shutdown: Experiment in improving the shutdown experience
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15 This module works by breaking the shutdown process into separate steps
4652a112a4ba mod_graceful_shutdown: Experiment in improving the shutdown experience
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16 with a brief pause between them.
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17
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18 It goes something like this
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20 1. Stop accepting new client connections.
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21 2. Close all client connections.
4652a112a4ba mod_graceful_shutdown: Experiment in improving the shutdown experience
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22 3. Fire event for everything else.
4652a112a4ba mod_graceful_shutdown: Experiment in improving the shutdown experience
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23 4. Tell `net.server` to quit the main loop.
4652a112a4ba mod_graceful_shutdown: Experiment in improving the shutdown experience
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24 5. ???
4652a112a4ba mod_graceful_shutdown: Experiment in improving the shutdown experience
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25 6. Still here? Kill itself.
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