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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> |
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date | Tue, 18 Jan 2022 18:55:20 +0100 |
parent | 2789:37ae0801f925 |
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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)