annotate mod_presence_dedup/README.markdown @ 5536:96dec7681af8

mod_firewall: Update user marks to store instantly via map store The original approach was to keep marks in memory only, and persist them at shutdown. That saves I/O, at the cost of potentially losing marks on an unclean shutdown. This change persists marks instantly, which may have some performance overhead but should be more "correct". It also splits the marking/unmarking into an event which may be watched or even fired by other modules.
author Matthew Wild <mwild1@gmail.com>
date Thu, 08 Jun 2023 16:20:42 +0100
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children
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2 summary: Presence deduplication module
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3 labels:
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4 - 'Stage-Alpha'
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5 ...
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7 This module tries to squash incoming identical presence stanzas to save
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8 some bandwidth at the cost of increased memory use.
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10 Configuration
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11 =============
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13 Option Type Default
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14 ------------------------------ -------- ---------
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15 presence\_dedup\_cache\_size number `100`
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17 The only setting controls how many presence stanzas *per session* are
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18 kept in memory for comparing with incoming presenece.
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19
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20 Requires Prosody 0.10 or later.