mirror of
https://github.com/ether/etherpad-lite.git
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d5d428c4ee
Until Etherpad 1.7.5, process.on('SIGTERM') and process.on('SIGINT') were not
hooked up under Windows, because old nodejs versions did not support them.
This excluded the possibility of doing a graceful shutdown of the database
connection under that platform.
According to nodejs 6.x documentation, it is now safe to do so. This allows to
gracefully close the DB connection when hitting CTRL+C under Windows, for
example.
Source: https://nodejs.org/docs/latest-v6.x/api/process.html#process_signal_events
- SIGTERM is not supported on Windows, it can be listened on.
- SIGINT from the terminal is supported on all platforms, and can usually be
generated with <Ctrl>+C (though this may be configurable). It is not
generated when terminal raw mode is enabled.
73 lines
2.2 KiB
JavaScript
73 lines
2.2 KiB
JavaScript
var os = require("os");
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var db = require('../../db/DB');
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var stats = require('ep_etherpad-lite/node/stats')
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exports.onShutdown = false;
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exports.gracefulShutdown = function(err) {
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if(err && err.stack) {
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console.error(err.stack);
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} else if(err) {
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console.error(err);
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}
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// ensure there is only one graceful shutdown running
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if (exports.onShutdown) {
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return;
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}
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exports.onShutdown = true;
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console.log("graceful shutdown...");
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// do the db shutdown
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db.db.doShutdown(function() {
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console.log("db sucessfully closed.");
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process.exit(0);
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});
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setTimeout(function() {
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process.exit(1);
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}, 3000);
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}
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process.on('uncaughtException', exports.gracefulShutdown);
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exports.expressCreateServer = function (hook_name, args, cb) {
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exports.app = args.app;
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// Handle errors
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args.app.use(function(err, req, res, next) {
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// if an error occurs Connect will pass it down
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// through these "error-handling" middleware
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// allowing you to respond however you like
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res.status(500).send({ error: 'Sorry, something bad happened!' });
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console.error(err.stack? err.stack : err.toString());
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stats.meter('http500').mark()
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});
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/*
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* Connect graceful shutdown with sigint and uncaught exception
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*
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* Until Etherpad 1.7.5, process.on('SIGTERM') and process.on('SIGINT') were
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* not hooked up under Windows, because old nodejs versions did not support
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* them.
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*
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* According to nodejs 6.x documentation, it is now safe to do so. This
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* allows to gracefully close the DB connection when hitting CTRL+C under
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* Windows, for example.
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*
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* Source: https://nodejs.org/docs/latest-v6.x/api/process.html#process_signal_events
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*
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* - SIGTERM is not supported on Windows, it can be listened on.
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* - SIGINT from the terminal is supported on all platforms, and can usually
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* be generated with <Ctrl>+C (though this may be configurable). It is not
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* generated when terminal raw mode is enabled.
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*/
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process.on('SIGINT', exports.gracefulShutdown);
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// when running as PID1 (e.g. in docker container)
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// allow graceful shutdown on SIGTERM c.f. #3265
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process.on('SIGTERM', exports.gracefulShutdown);
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}
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