Mercurial > prosody-modules

annotate mod_measure_client_features/mod_measure_client_features.lua @ 4776:13e913471b75

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mod_http_admin_api: Ensure freshness of metrics when in manual mode When in manual collection mode, as recommended for Prometheus, collection needs to be triggered manually, or they would be stale, possibly dating from the start of the server. This might vary per metric depending on how and when the metrics are gathered.
author Kim Alvefur <zash@zash.se>
date Thu, 18 Nov 2021 19:26:07 +0100
parents 5fdbf416bd40
children
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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)