[英]Error setting TTL index on collection : sessions (MongoDB/MongoHQ)
[英]MongoDB: Error setting TTL index on collection : sessions
最初这个错误消息很少出现,但开始出现更频繁,现在出现了我运行应用程序的4/5次。
我正在使用Mongo处理我的会话存储,据我了解,TTL索引用于使会话数据到期。
/home/dan/dev/audio-wave/node_modules/connect-mongo/lib/connect-mongo.js:161
throw new Error('Error setting TTL index on collection : ' + s
^
Error: Error setting TTL index on collection : sessions
at /home/dan/dev/audio-wave/node_modules/connect-mongo/lib/connect-mongo.js:161:23
at /home/dan/dev/audio-wave/node_modules/connect-mongo/node_modules/mongodb/lib/mongodb/db.js:1404:28
at /home/dan/dev/audio-wave/node_modules/connect-mongo/node_modules/mongodb/lib/mongodb/db.js:1542:30
at /home/dan/dev/audio-wave/node_modules/connect-mongo/node_modules/mongodb/lib/mongodb/cursor.js:159:22
at commandHandler (/home/dan/dev/audio-wave/node_modules/connect-mongo/node_modules/mongodb/lib/mongodb/cursor.js:678:48)
at Db._executeQueryCommand (/home/dan/dev/audio-wave/node_modules/connect-mongo/node_modules/mongodb/lib/mongodb/db.js:1802:12)
at Cursor.nextObject (/home/dan/dev/audio-wave/node_modules/connect-mongo/node_modules/mongodb/lib/mongodb/cursor.js:729:13)
at Cursor.toArray (/home/dan/dev/audio-wave/node_modules/connect-mongo/node_modules/mongodb/lib/mongodb/cursor.js:158:10)
at Cursor.toArray (/home/dan/dev/audio-wave/node_modules/connect-mongo/node_modules/mongodb/lib/mongodb/scope.js:10:20)
at /home/dan/dev/audio-wave/node_modules/connect-mongo/node_modules/mongodb/lib/mongodb/db.js:1541:65
这是将它们联系在一起的代码
var sessionStore = new MongoStore({ db: 'audio-drop' })
, cookieParser = express.cookieParser('waytoblue')
, SessionSockets = require('session.socket.io')
, sockets = new SessionSockets(io, sessionStore, cookieParser);
app.set('port', process.env.PORT || 3000);
app.set('views', __dirname + '/views');
app.set('view engine', 'ejs');
app.use(express.favicon());
app.use(express.bodyParser());
app.use(express.methodOverride());
app.use(express.static(path.join(__dirname, 'public')));
app.use(express.logger('dev'));
app.use(cookieParser);
app.use(express.session({
store: sessionStore
}));
根据Mongo shell的db.version()
,我运行的是2.4.9,我使用的是connect-mongo
0.4.0版本。
似乎有很多人已经解决了这个问题,但似乎大多数人都决定成为凭据问题,我的本地mongo不能通过身份验证来保护,所以这不是问题所在。 有任何想法吗?
正如我在您的评论中所说,基本上Express在会话存储完全连接之前接收连接。 解决方案是在允许应用程序开始侦听之前等待连接发生。
您可以通过在MongoStore创建上使用回调或传入已经活动的连接来避免此问题。
connect-mongo
的回调示例 var sessionStore = new MongoStore({ url: 'someConnectionUrl', db: 'audio-drop' }, function(e) {
var cookieParser = express.cookieParser('waytoblue');
app.use(cookieParser);
app.use(express.session({
store: sessionStore
}));
app.listen();
});
var mongoose = require('mongoose');
mongoose.connect('localhost', function(e) {
// If error connecting
if(e) throw e;
var sessionStore = new MongoStore({ mongoose_connection: mongoose.connection }),
cookieParser = express.cookieParser('waytoblue');
app.use(cookieParser);
app.use(express.session({
store: sessionStore
}));
app.listen();
});
升级到connect-mongo版本0.8.0,这对我有用。
它只是将所有其他内容封装在
mongoose.connect
回调函数中
请参阅我的server / app.js
/**
* Main application file
*/
'use strict';
// Set default node environment to development
process.env.NODE_ENV = process.env.NODE_ENV || 'development';
var express = require('express');
var mongoose = require('mongoose');
var config = require('./config/environment');
// Connect to database
mongoose.connect(config.mongo.uri, config.mongo.options , function(e){
// Populate DB with sample data
if(config.seedDB) { require('./config/seed'); }
// Setup server
var app = express();
var server = require('http').createServer(app);
var socketio = require('socket.io')(server, {
serveClient: (config.env === 'production') ? false : true,
path: '/socket.io-client'
});
require('./config/socketio')(socketio);
require('./config/express')(app);
require('./routes')(app);
// Start server
server.listen(config.port, config.ip, function () {
console.log('Express server listening on %d, in %s mode', config.port, app.get('env'));
});
// Expose app
exports = module.exports = app;
});
希望能帮助到你!!
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