Mercurial > prosody-modules

annotate mod_measure_client_features/mod_measure_client_features.lua @ 4877:adc6241e5d16

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mod_measure_process: Report the enforced limit The soft limit is what the kernel actually enforces, while the hard limit is is how far you can change the soft limit without privileges. Unless the process dynamically adjusts the soft limit, knowing the hard limit is not as useful as knowing the soft limit. Reporting the soft limit and the number of in-use FDs allows placing alerts on expressions like 'process_open_fds / process_max_fds >= 0.95'
author Kim Alvefur <zash@zash.se>
date Tue, 18 Jan 2022 18:55:20 +0100
parents 5fdbf416bd40
children 3e0bce07f66c
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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5fdbf416bd40 mod_measure_client_features: Add a module to count the features of each connected client
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1 module:set_global();
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2
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3 local measure = require"core.statsmanager".measure;
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4
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5 local disco_ns = "http://jabber.org/protocol/disco#info";
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6
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7 local counters = {
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8 total = measure("amount", "client_features.total");
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9 };
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10
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11 module:hook("stats-update", function ()
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12 local total = 0;
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13 local buckets = {};
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14 for _, session in pairs(prosody.full_sessions) do
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15 local disco_info = session.caps_cache;
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16 if disco_info ~= nil then
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17 for feature in disco_info:childtags("feature", disco_ns) do
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18 local var = feature.attr.var;
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19 if var ~= nil then
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20 if buckets[var] == nil then
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21 buckets[var] = 0;
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22 end
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23 buckets[var] = buckets[var] + 1;
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24 end
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25 end
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26 total = total + 1;
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27 end
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28 end
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29 for bucket, count in pairs(buckets) do
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30 if counters[bucket] == nil then
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31 counters[bucket] = measure("amount", "client_features."..bucket);
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32 end
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33 counters[bucket](count);
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34 end
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35 counters.total(total);
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36 end)