File

mod_measure_client_presence/mod_measure_client_presence.lua @ 4877:adc6241e5d16

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
parent 2789:37ae0801f925
line wrap: on
line source

module:set_global();

local measure = require"core.statsmanager".measure;

local valid_shows = {
	available = true,
	chat = true,
	away = true,
	dnd = true,
	xa = true,
	unavailable = true,
}

local counters = {
	available = measure("amount", "client_presence.available"),
	chat = measure("amount", "client_presence.chat"),
	away = measure("amount", "client_presence.away"),
	dnd = measure("amount", "client_presence.dnd"),
	xa = measure("amount", "client_presence.xa"),
	unavailable = measure("amount", "client_presence.unavailable"),
	invalid = measure("amount", "client_presence.invalid");
};

module:hook("stats-update", function ()
	local buckets = {
		available = 0,
		chat = 0,
		away = 0,
		dnd = 0,
		xa = 0,
		unavailable = 0,
		invalid = 0,
	};
	for _, session in pairs(full_sessions) do
		local status = "unavailable";
		if session.presence then
			status = session.presence:get_child_text("show") or "available";
		end
		if valid_shows[status] ~= nil then
			buckets[status] = buckets[status] + 1;
		else
			buckets.invalid = buckets.invalid + 1;
		end
	end
	for bucket, count in pairs(buckets) do
		counters[bucket](count)
	end
end)