Mercurial > prosody-modules

annotate mod_measure_client_identities/mod_measure_client_identities.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 fdbf7c2aed7b
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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e166ccc7a779 mod_measure_client_identities: Collect statistics about client identities.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
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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 counters = {
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6 unknown = measure("amount", "client_identities.unknown"),
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7 };
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8
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9 module:hook("stats-update", function ()
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10 local buckets = {
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11 unknown = 0,
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12 };
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13 for _, session in pairs(prosody.full_sessions) do
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14 if session.caps_cache ~= nil then
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15 local node_string = session.caps_cache.attr.node;
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16 local node = node_string:match("([^#]+)");
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17 if buckets[node] == nil then
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18 buckets[node] = 0;
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19 end
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20 buckets[node] = buckets[node] + 1;
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21 else
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22 buckets.unknown = buckets.unknown + 1;
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23 end
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24 end
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25 local visited = {};
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26 for bucket, count in pairs(buckets) do
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27 if counters[bucket] == nil then
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28 counters[bucket] = measure("amount", "client_identities."..bucket);
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29 end
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30 counters[bucket](count);
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31 visited[bucket] = true;
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32 end
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33 for bucket, counter in pairs(counters) do
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34 if not visited[bucket] then
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35 counter(0);
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36 end
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37 end
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38 end)