Mercurial > prosody-modules
view mod_graceful_shutdown/mod_graceful_shutdown.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 |
parents | 4652a112a4ba |
children | 8dbaa5e753f3 |
line wrap: on
line source
-- luacheck: ignore 122/prosody 113/prosody local timer = require "util.timer"; local portman = require "core.portmanager"; local server = require "net.server"; module:set_global(); local orig_shutdown = prosody.shutdown; local pause = module:get_option_number("shutdown_pause", 1); function module.unload() prosody.shutdown = orig_shutdown; end prosody.shutdown = coroutine.wrap(function (reason, code) prosody.shutdown_reason = reason; prosody.shutdown_code = code; timer.add_task(pause, prosody.shutdown); coroutine.yield(true, "shutdown initiated"); -- Close c2s ports, stop accepting new connections portman.deactivate("c2s"); -- Close all c2s sessions for _, sess in pairs(prosody.full_sessions) do sess:close{ condition = "system-shutdown", text = reason } end -- Wait for notifications to be sent coroutine.yield(pause); -- Event for everything else to shut down prosody.events.fire_event("server-stopping", { reason = reason; code = code; }); -- And wait coroutine.yield(pause); -- And stop main event loop server.setquitting(true); -- And wait for death coroutine.yield(pause * 3); -- you came back? die zombie! os.exit(1); end);