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|
/**
* Misskey Entry Point!
*/
Error.stackTraceLimit = Infinity;
require('events').EventEmitter.defaultMaxListeners = 128;
import * as os from 'os';
import * as cluster from 'cluster';
import * as debug from 'debug';
import chalk from 'chalk';
import * as portscanner from 'portscanner';
import isRoot = require('is-root');
import Xev from 'xev';
import * as program from 'commander';
import mongo from './db/mongodb';
import Logger from './misc/logger';
import ProgressBar from './misc/cli/progressbar';
import EnvironmentInfo from './misc/environmentInfo';
import MachineInfo from './misc/machineInfo';
import serverStats from './daemons/server-stats';
import notesStats from './daemons/notes-stats';
import loadConfig from './config/load';
import { Config } from './config/types';
const clusterLog = debug('misskey:cluster');
const ev = new Xev();
if (process.env.NODE_ENV != 'production' && process.env.DEBUG == null) {
debug.enable('misskey');
}
const pkg = require('../package.json');
//#region Command line argument definitions
program
.version(pkg.version)
.option('--no-daemons', 'Disable daemon processes (for debbuging)')
.option('--disable-clustering', 'Disable clustering')
.parse(process.argv);
//#endregion
main();
/**
* Init process
*/
function main() {
process.title = `Misskey (${cluster.isMaster ? 'master' : 'worker'})`;
if (cluster.isMaster || program.disableClustering) {
masterMain();
if (cluster.isMaster) {
ev.mount();
}
if (program.daemons) {
serverStats();
notesStats();
}
}
if (cluster.isWorker || program.disableClustering) {
workerMain();
}
}
/**
* Init master process
*/
async function masterMain() {
let config: Config;
try {
// initialize app
config = await init();
} catch (e) {
console.error(e);
Logger.error('Fatal error occurred during initialization');
process.exit(1);
}
Logger.succ('Misskey initialized');
if (!program.disableClustering) {
await spawnWorkers(config.clusterLimit);
Logger.succ('All workers started');
}
Logger.info(`Now listening on port ${config.port} on ${config.url}`);
}
/**
* Init worker process
*/
async function workerMain() {
// start server
await require('./server').default();
if (cluster.isWorker) {
// Send a 'ready' message to parent process
process.send('ready');
}
}
/**
* Init app
*/
async function init(): Promise<Config> {
Logger.info('Welcome to Misskey!');
new Logger('Deps').info(`Node.js ${process.version}`);
MachineInfo.show();
EnvironmentInfo.show();
const configLogger = new Logger('Config');
let config;
try {
config = loadConfig();
} catch (exception) {
if (typeof exception === 'string') {
configLogger.error(exception);
process.exit(1);
}
if (exception.code === 'ENOENT') {
configLogger.error('Configuration file not found');
process.exit(1);
}
throw exception;
}
configLogger.succ('Loaded');
if (process.platform === 'linux' && !isRoot() && config.port < 1024) {
Logger.error('You need root privileges to listen on port below 1024 on Linux');
process.exit(1);
}
if (await portscanner.checkPortStatus(config.port, '127.0.0.1') === 'open') {
Logger.error(`Port ${config.port} is already in use`);
process.exit(1);
}
// Try to connect to MongoDB
checkMongoDb(config);
return config;
}
function checkMongoDb(config: Config) {
const mongoDBLogger = new Logger('MongoDB');
const u = config.mongodb.user ? encodeURIComponent(config.mongodb.user) : null;
const p = config.mongodb.pass ? encodeURIComponent(config.mongodb.pass) : null;
const uri = `mongodb://${u && p ? `${u}:****@` : ''}${config.mongodb.host}:${config.mongodb.port}/${config.mongodb.db}`;
mongoDBLogger.info(`Connecting to ${uri}`);
mongo.then(() => {
mongoDBLogger.succ('Connectivity confirmed');
})
.catch(err => {
mongoDBLogger.error(err.message);
});
}
function spawnWorkers(limit: number) {
return new Promise(res => {
// Count the machine's CPUs
const cpuCount = os.cpus().length;
const count = limit || cpuCount;
const progress = new ProgressBar(count, 'Starting workers');
// Create a worker for each CPU
for (let i = 0; i < count; i++) {
const worker = cluster.fork();
worker.on('message', message => {
if (message === 'ready') {
progress.increment();
}
});
}
// On all workers started
progress.on('complete', () => {
res();
});
});
}
//#region Events
// Listen new workers
cluster.on('fork', worker => {
clusterLog(`Process forked: [${worker.id}]`);
});
// Listen online workers
cluster.on('online', worker => {
clusterLog(`Process is now online: [${worker.id}]`);
});
// Listen for dying workers
cluster.on('exit', worker => {
// Replace the dead worker,
// we're not sentimental
clusterLog(chalk.red(`[${worker.id}] died :(`));
cluster.fork();
});
// Display detail of unhandled promise rejection
process.on('unhandledRejection', console.dir);
// Display detail of uncaught exception
process.on('uncaughtException', err => {
console.error(err);
});
// Dying away...
process.on('exit', code => {
Logger.info(`The process is going to exit with code ${code}`);
});
//#endregion
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