annotate mod_list_active/mod_list_active.lua @ 4578:d95fcde6e39d

mod_measure_lua: add openmetrics-spirited way to collect lua memory use In the spirit of separate collectors found in other Prometheus packages, this is a separate module to collect metrics related to the lua stack itself.
author Jonas Schäfer <jonas@wielicki.name>
date Sat, 29 May 2021 12:12:17 +0200
parents c06c59b99b3c
children
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1 -- Copyright (C) 2012-2013 Kim Alvefur
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3 local um = require "core.usermanager";
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4 local sm = require "core.storagemanager";
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5 local dm = require "util.datamanager";
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6 local jid_join = require"util.jid".join;
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7
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8 local multipliers = {
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9 d = 86400, -- day
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10 w = 604800, -- week
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11 m = 2629746, -- month
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12 y = 31556952, -- year
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13 }
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15 local output_formats = {
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16 default = "%s",
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17 event = "%s %s",
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18 }
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19
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20 function module.command(arg)
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21 if #arg < 2 then
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22 print("usage: prosodyctl mod_list_active example.net time [format]");
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23 print("time is a number followed by 'day', 'week', 'month' or 'year'");
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24 print("formats are:");
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25 for name, fmt in pairs(output_formats) do
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26 print(name, fmt:format("user@example.com", "last action"))
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27 end
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28 return;
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29 end
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30 local items = {};
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31 local host = arg[1];
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32 assert(hosts[host], "Host "..tostring(host).." does not exist");
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33 sm.initialize_host(host);
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34 um.initialize_host(host);
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36 local max_age, unit = assert(arg[2], "No time range given"):match("^(%d*)%s*([dwmy]?)");
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37 max_age = os.time() - ( tonumber(max_age) or 1 ) * ( multipliers[unit] or 1 );
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39 local output = assert(output_formats[arg[3] or "default"], "No such output format: "..tostring(arg[3] or "default"));
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41 for user in dm.users(host, "lastlog") do
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42 local last_active = dm.load(user, host, "lastlog");
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43 local last_action = last_active and last_active.event or "?"
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44 last_active = last_active and last_active.timestamp or 0;
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45 if last_active > max_age then
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46 print(output:format(jid_join(user, host), last_action));
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47 end
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48 end
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49 end
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