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mod_graceful_shutdown/README.markdown @ 3532:85c357b69eec

mod_csi_muc_priorities: Reduce importance of group chat messages This helps if you are in more noisy public channels than small private group chats. The short term plan is to give users the ability to set MUC JIDs as either high or low priority and use that. Long term it would be great to be able to automatically classify MUCs as public channels vs private group chats.
author Kim Alvefur <zash@zash.se>
date Mon, 01 Apr 2019 00:15:13 +0200
parent 2818:88474dd1af48
child 4898:999e7cb7f6d9
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4652a112a4ba mod_graceful_shutdown: Experiment in improving the shutdown experience
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1 This module is an experiment about a more graceful shutdown process.
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2
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3 Why
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4 ===
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5
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6 When shutting down, a number of sessions, connections and other things
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7 are teared down. Due to all these things happening very quickly,
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8 sometimes e.g. client unavailable notifications don't make it to all
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9 remote contacts because the server-to-server connections are teared down
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10 just after.
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12 How
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13 ===
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15 This module works by breaking the shutdown process into separate steps
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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.
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22 3. Fire event for everything else.
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23 4. Tell `net.server` to quit the main loop.
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24 5. ???
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25 6. Still here? Kill itself.
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26