Mongoose Model.find() hangs when not connected to database
mongodb, mongoose, node.js
Solution
It is not an answer, but hope it will help you to find solution. Had very similar issue with mongoose.createConnection while using passport module, found out that it works fine with mongoose.connect
Problem
I'm going through a few error scenarios, trying to understand how to handle those. In the case where there is no database connection, a Mongoose `Model.find(...)` call seems to hang. Below the example code. I would have assumed that the callback is invoked with an `err` object, but it is not. How can I prevent the model call to hang? Do I manually have to check the `readyState` each time I access a model? ``` // app.js // Let's use a non-existing host so connecting fails: // (callback is invoked with err object) mongoose.connect('mongodb://localhostXXX/blog', function(err){ ... }); BlogPost = mongoose.model('BlogPost', BlogPostSchema); // api.js exports.list_posts = function(req, res) { // Ready state is '0' = disconnected (since we used a wrong hostname) console.log('DB ready state: ' + BlogPost.db.readyState); // This will not invoke the callback: BlogPost.find(function(err, threads) { // Never called... }); } ```