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util/statsd.lua @ 10390:82705ec87253 0.11
util.startup: Ensure prosody.paths are absolute (see #1430)
Normally these paths are injected into the installed 'prosody'
executable as absolute paths, but it is possible to override at least
the config path via environment variable or command line argument. This
makes sure a path relative to pwd stays relative to that instead of the
data directory.
author | Kim Alvefur <zash@zash.se> |
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date | Mon, 04 Nov 2019 00:29:49 +0100 |
parent | 7988:dc758422d896 |
child | 10924:0c072dd69603 |
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local socket = require "socket"; local time = require "util.time".now local function new(config) if not config or not config.statsd_server then return nil, "No statsd server specified in the config, please see https://prosody.im/doc/statistics"; end local sock = socket.udp(); sock:setpeername(config.statsd_server, config.statsd_port or 8125); local prefix = (config.prefix or "prosody").."."; local function send_metric(s) return sock:send(prefix..s); end local function send_gauge(name, amount, relative) local s_amount = tostring(amount); if relative and amount > 0 then s_amount = "+"..s_amount; end return send_metric(name..":"..s_amount.."|g"); end local function send_counter(name, amount) return send_metric(name..":"..tostring(amount).."|c"); end local function send_duration(name, duration) return send_metric(name..":"..tostring(duration).."|ms"); end local function send_histogram_sample(name, sample) return send_metric(name..":"..tostring(sample).."|h"); end local methods; methods = { amount = function (name, initial) if initial then send_gauge(name, initial); end return function (new_v) send_gauge(name, new_v); end end; counter = function (name, initial) --luacheck: ignore 212/initial return function (delta) send_gauge(name, delta, true); end; end; rate = function (name) return function () send_counter(name, 1); end; end; distribution = function (name, unit, type) --luacheck: ignore 212/unit 212/type return function (value) send_histogram_sample(name, value); end; end; sizes = function (name) name = name.."_size"; return function (value) send_histogram_sample(name, value); end; end; times = function (name) return function () local start_time = time(); return function () local end_time = time(); local duration = end_time - start_time; send_duration(name, duration*1000); end end; end; }; return methods; end return { new = new; }