mirror of https://github.com/status-im/codimd.git
Add maintenance mode and update to gracefully exit process on signal
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parent
27e17d7772
commit
16d5e3ea80
26
app.js
26
app.js
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@ -502,3 +502,29 @@ process.on('uncaughtException', function (err) {
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logger.error('Process will exit now.');
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process.exit(1);
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});
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// gracefully exit
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process.on('SIGINT', function () {
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config.maintenance = true;
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// disconnect all socket.io clients
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Object.keys(io.sockets.sockets).forEach(function (key) {
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var socket = io.sockets.sockets[key];
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// notify client server going into maintenance status
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socket.emit('maintenance', config.version);
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socket.disconnect(true);
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});
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var checkCleanTimer = setInterval(function () {
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var usersCount = Object.keys(realtime.users).length;
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var notesCount = Object.keys(realtime.notes).length;
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// check if all users and notes array are empty
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if (usersCount == 0 && notesCount == 0) {
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// close db connection
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models.sequelize.close();
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clearInterval(checkCleanTimer);
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// wait for a while before exit
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setTimeout(function () {
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process.exit(0);
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}, 100);
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}
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}, 100);
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});
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@ -78,10 +78,12 @@ function getserverurl() {
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}
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var version = '0.4.0';
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var maintenance = config.maintenance || false;
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var cwd = path.join(__dirname, '..');
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module.exports = {
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version: version,
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maintenance: maintenance,
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debug: debug,
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urlpath: urlpath,
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port: port,
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@ -25,7 +25,9 @@ var realtime = {
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onAuthorizeFail: onAuthorizeFail,
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secure: secure,
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connection: connection,
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getStatus: getStatus
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getStatus: getStatus,
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users: users,
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notes: notes
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};
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function onAuthorizeSuccess(data, accept) {
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@ -70,8 +72,9 @@ function emitCheck(note) {
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}
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//actions
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var users = {};
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var notes = {};
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var users, notes;
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realtime.users = users = {};
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realtime.notes = notes = {};
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//update when the note is dirty
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var updater = setInterval(function () {
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async.each(Object.keys(notes), function (key, callback) {
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@ -536,6 +539,7 @@ function ifMayEdit(socket, callback) {
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}
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function connection(socket) {
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if (config.maintenance) return;
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parseNoteIdFromSocket(socket, function (err, noteId) {
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if (err) {
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return failConnection(500, err, socket);
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@ -1825,6 +1825,11 @@ socket.on('error', function (data) {
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if (data.message && data.message.indexOf('AUTH failed') === 0)
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location.href = "./403";
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});
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var retryOnDisconnect = false;
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socket.on('maintenance', function (data) {
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if (data == version)
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retryOnDisconnect = true;
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});
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socket.on('disconnect', function (data) {
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showStatus(statusType.offline);
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if (loaded) {
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@ -1833,12 +1838,15 @@ socket.on('disconnect', function (data) {
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}
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if (!editor.getOption('readOnly'))
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editor.setOption('readOnly', true);
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if (retryOnDisconnect)
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socket.connect();
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});
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socket.on('reconnect', function (data) {
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//sync back any change in offline
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emitUserStatus(true);
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cursorActivity();
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socket.emit('online users');
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retryOnDisconnect = false;
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});
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socket.on('connect', function (data) {
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personalInfo['id'] = socket.id;
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