Node.js + MongoDB：MongoError：游标被杀死或超时

Question

When finding a lot of documents and iterating over them using cursor.nextObject , one by one, the callback eventually returns undefined result and error MongoError: cursor killed or timed out . Whole error message is:

[MongoError: cursor killed or timed out] 
name: 'MongoError', 
message: 'cursor killed or timed out'

How to avoid the cursor to be killed?

Answer 1

According to Mongodb's official doc , the optional param timeout can be set to false .

db.collection('mycollection').find({}, {timeout:false}, function(err, cursor) {
    if (!err) {
         // Iterate safely on your cursor here
    } else {
        console.log(err);
    }
});