annotate mod_statsd/mod_statsd.lua @ 1498:e82592ed744b

mod_mam_archive: Applying @vstakhov 's patch (https://gist.github.com/vstakhov/306ea813a38021dcf3d4). Fixing SQLite-related bugs, to-from bugs, rst compatibility, etc. Thanks Vsevolod!
author syn@syn.im
date Sun, 31 Aug 2014 20:13:54 +0200
parents d31ace5b1175
children 26c68a5f432f
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1 -- Log common stats to statsd
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2 --
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3 -- Copyright (C) 2014 Daurnimator
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4 --
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5 -- This module is MIT/X11 licensed.
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6
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7 local socket = require "socket"
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8 local iterators = require "util.iterators"
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9 local jid = require "util.jid"
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10
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11 local options = module:get_option("statsd") or {}
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12
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13 -- Create UDP socket to statsd server
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14 local sock = socket.udp()
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15 sock:setpeername(options.hostname or "127.0.0.1", options.port or 8125)
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16
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17 -- Metrics are namespaced by ".", and seperated by newline
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18 function clean(s) return (s:gsub("[%.:\n]", "_")) end
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19
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20 -- A 'safer' send function to expose
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21 function send(s) return sock:send(s) end
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22
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23 -- prefix should end in "."
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24 local prefix = (options.prefix or "prosody") .. "."
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25 if not options.no_host then
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26 prefix = prefix .. clean(module.host) .. "."
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27 end
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28
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29 -- Track users as they bind/unbind
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30 -- count bare sessions every time, as we have no way to tell if it's a new bare session or not
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31 module:hook("resource-bind", function(event)
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32 send(prefix.."bare_sessions:"..iterators.count(pairs(bare_sessions)).."|g")
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33 send(prefix.."full_sessions:+1|g")
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34 end, 1)
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35 module:hook("resource-unbind", function(event)
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36 send(prefix.."bare_sessions:"..iterators.count(pairs(bare_sessions)).."|g")
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37 send(prefix.."full_sessions:-1|g")
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38 end, 1)
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39
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40 -- Track MUC occupants as they join/leave
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41 module:hook("muc-occupant-joined", function(event)
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42 send(prefix.."n_occupants:+1|g")
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43 local room_node = jid.split(event.room.jid)
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44 send(prefix..clean(room_node)..".occupants:+1|g")
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45 end)
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46 module:hook("muc-occupant-left", function(event)
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47 send(prefix.."n_occupants:-1|g")
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48 local room_node = jid.split(event.room.jid)
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49 send(prefix..clean(room_node)..".occupants:-1|g")
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50 end)
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51
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52 -- Misc other MUC
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53 module:hook("muc-broadcast-message", function(event)
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54 send(prefix.."broadcast-message:1|c")
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55 local room_node = jid.split(event.room.jid)
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56 send(prefix..clean(room_node)..".broadcast-message:1|c")
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57 end)
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58 module:hook("muc-invite", function(event)
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59 -- Total count
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60 send(prefix.."invite:1|c")
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61 local room_node = jid.split(event.room.jid)
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62 -- Counts per room
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63 send(prefix..clean(room_node)..".invite:1|c")
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64 -- Counts per recipient
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65 send(prefix..clean(event.stanza.attr.to)..".invited:1|c")
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66 end)
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67 module:hook("muc-decline", function(event)
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68 -- Total count
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69 send(prefix.."decline:1|c")
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70 local room_node = jid.split(event.room.jid)
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71 -- Counts per room
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72 send(prefix..clean(room_node)..".decline:1|c")
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73 -- Counts per sender
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74 send(prefix..clean(event.incoming.attr.from)..".declined:1|c")
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75 end)