MongoDB is a scalable, high-performance, open source, document-oriented database. It supports a large number of languages and application development platforms. Questions about administrating it can be asked on dba.stackexchange.com

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4
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0answers
30 views

Why does Mongo check for order of keys when matching embedded documents?

https://docs.mongodb.com/v3.0/reference/method/db.collection.find/#query-exact-matches-on-embedded-documents The following operation returns documents in the bios collection where the embedded ...
1
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2answers
27 views

Creating a web application with full text search on dynamic data

Even after thorough requirements engineering we end up with users wanting to attach 'notes' to their otherwise well-structured data records, in other words: arbitrary key-value pairs. Their primary ...
1
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2answers
196 views

Sign up user using Microsoft Exchange Account in Node.js MongoDB

I have a question about whether a programming technique is at all possible. Most of the apps these days come with sign up with Facebook, Twitter or gmail functionality. My company has its domain ...
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votes
1answer
126 views

Should I use NoSQL or HDFS for storage?

I have millions of tweets currently stored in HDFS and I plan to analyze them from Spark (Data mining, text mining, Frequent Term-Based Text Clustering, Social Network Analysis) however, do not know ...
0
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0answers
12 views

Regional test-of-concept environment, whose database must be merged back to the main server afterwards

My client wishes to launch a specific version of the Rails platform I am developing that will be restricted to a particular group of users (some sort of test-of-concept). I will have another server ...
0
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0answers
19 views

Is having a singleton collection in Mongo (i.e. equivalent of an SQL table with one row) an anti-pattern?

I've been looking for ways to implement this, and haven't found it anywhere, so wonder if I'm doing something silly. Essentially I have a set of information which is relevant to the entire ...
1
vote
1answer
166 views

How should I implement a full text search into my meteor web app?

I am making a web application using the javascript framework Meteor, which runs with mongodb. In the web app I have a db set up that holds individual video games in the documents. An example of this ...
4
votes
2answers
61 views

Is it a good idea not to embed certain one-to-one relationships in a Mongo database?

I'm designing a NoSQL database schema - MongoDB in particular - and I'm wondering if it's a good idea not to embed certain one-to-one relationships. For one example, I have an accounts collection, ...
8
votes
6answers
9k views

Is MongoDB the right choice in my case? [closed]

I'm going to build my first real project in Rails that consist in a web app made of 3 main parts: The static part where no database is used The User registration part which will require a database ...
2
votes
1answer
124 views

Should I store cryptographic hashes as a blob or as a string?

I'm new to MongoDB and am wondering how to decide to store some cryptographic hashes. Should I store the binary data itself, as a blob, or should I store its string representation as a string? My ...
0
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0answers
30 views

Unifying database interface for multiple authentication methods

I'm working on a project with Mongo as the db. Currently, we only allow users to sign up with email and we look them up in the db by email address. But now we're moving to allow users to sign up ...
2
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0answers
201 views

Authenticate Joomla user from an external app based on Node.js, Javascript and MongoDB

I have an iOS App which currently pulls in all the data from the MongoDB using a Node.js server. Currently my API / my node server handles all the data manipulation the iOS app/Swift only displays the ...
1
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0answers
33 views

Feedback on simple authorisation system design

I'm writing a fairly simple authentication/authorisation api for an intranet application we are developing. It's my first roles based authorisation system and its a good opportunity for a first ...
2
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0answers
70 views

Ideal Database for Big Data with Graph Relationships [closed]

The Requirement My application ingests a decent amount of data and need to traverse relationships between the data and do aggregations/projections on that data with volume like 1m+ ...
0
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0answers
136 views

How to properly index MongoDB with ElasticSearch?

we are working on a JAVA EE project which handles huge amount of data, but has to provide full-text-search option (in hungarian language). So we started to think about what kind of architecture could ...
4
votes
3answers
664 views

Is MongoDB appropriate for systems that will be likely to change?

I've been using MongoDb (mainly with Meteor) and for me, it has been a great way to mock up prototypes and proof of concepts quickly. I'm just wondering, after building the initial product, if your ...
6
votes
2answers
3k views

How to model hashtags with nodejs and mongodb

Existing architecture: nodejs server with mongodb backend. I have strings coming in describing images that can have #hashtags in them. I wish to extract the hashtags from the strings, store the ...
2
votes
2answers
323 views

Is it appropriate to use id-s in MongoDb subdocuments?

I'm currently familiarizing myself with NoSQL by building a simple web application using MongoDb with the official C# driver. If i have understood the NoSQL concept correctly, then only the aggregate ...
2
votes
1answer
651 views

MongoDB Embedded vs Reference Private info

I have searched extensively for a similar Mongo schema design and can't find relevant examples. I have a store (with public info), each store has an account (with private account info). // store ...
3
votes
1answer
188 views

Best-matching comparative values using all items in array

I have two arrays of objects (items) in the exact same format. Each item represents a wager, and each array represents one of two outcomes for that wager (ex: Team A vs Team B). Both arrays look ...
2
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0answers
86 views

Upload, convert, and store multiple different product data feeds into a database

I'm not sure if this right location for this question, but here it is. I currently have about 30 different CSV or TXT product data feeds. I am trying to build a tool to 1) upload each feed 2) ...
3
votes
1answer
444 views

How do I represent a schema diagram of my MongoDB database?

I have a MongoDB database that I want to properly document its schema design. I know that MongoDB is a NoSQL database and is schemaless by nature, but I do enforce a schema through my application and ...
1
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0answers
56 views

Is it OK to use mongodb's query object format as a parameter for my api?

I am designing an api that can give developers read-only access to a large dataset. The data is stored in a mongodb database. All the results of the api, will basically either be a count of matches ...
2
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3answers
77 views

How to properly store messages in a webservice?

We are building a multitenant webservice with PHP and MongoDB. There is a need for communication between service employees and clients, communication can be established in many different ways. Some of ...
1
vote
1answer
121 views

Expert advice needed for a NoSql Database

At our company, I have been given the task to develop a Mobile Application (iOS, Android and in the future, maybe Windows). Given those devices, it's likely that we'll have a high number of ...
0
votes
1answer
127 views

Copying/cloning MongoDB database from production to development

I am struggling to find a good way to copy over our production MongoDB database to overwrite our development database on demand. db.copyDatabase doesn't work from the command line using mongo-cli. Is ...
1
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0answers
66 views

How to implement partial normalization while keeping data integrity across documents

I've been researching how to properly design a mongo schema and came across this blog post on their site: http://blog.mongodb.org/post/87892923503/6-rules-of-thumb-for-mongodb-schema-design-part-2 ...
2
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3answers
177 views

Help me design this use case

I have following entities: Data: User_id Categories: Interests, Disinterests, Categories A, B C... Each categories have sub categories: Interests=Gaming, Physics, Programming etc.. Now each user ...
1
vote
1answer
142 views

Storing PageViews Count Data in MongoDB

I would like to ask for feedback for some programming logic concept & ideas. I am building a site where i would like to keep track on how many pageviews a page has daily. I have thought of 2 ways ...
2
votes
1answer
200 views

Should I use MongoDB for reference data?

I have a need to implement a number of microservices that will provide validation and lookup services. Each will hold independent and (essentially) read-only reference data. In each case, the data ...
2
votes
1answer
97 views

Proper tree NoSQL structure with focus on full-text searching

I developing an app with tree(folder-file) structure, on which I should perform full-text searches with MongoDB. I did a research on the best tree structure practices and found this great article, but ...
2
votes
1answer
10k views

How to connect Android App to MongoDB deployed on Google Cloud

Currently I am working on a simple app which will be able to connect to MongoDB which is deployed in Google Cloud. I have set it up MongoDB ocaly on my computer and I have made a little JAVA console ...
4
votes
1answer
349 views

Do serialization functions belong in a model or a controller?

I'm developing an application where: Models keep data as a multi-dimensional array, which are saved as-is to a MongoDB database. The model is used to provide methods to manipulate the data, and ...
1
vote
1answer
145 views

Confused in NoSql data model

I have a web application that uses MongoDB as primary database. This is the first project I do with a NoSQL DB. I'm trying to create the application model but I'm confused. I know NoSQL databases are ...
4
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0answers
199 views

inserting json document with `.` in key to mongodb

Firstly, this is more of a design question than a programming question. I am creating an application where I have to fetch existing json data and insert it into mongoDB. I found that some of the the ...
0
votes
3answers
253 views

What is the best way to go about storing application options: file system or db? [closed]

We are looking to find the best way to store user options (skills, degrees, industries, languages, etc.) for drop downs. The options are between a JSON file we can store on the server file system or ...
0
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0answers
48 views

Synchronizing content between web-based app and game server

I have a MUD server, written in C, that I'm trying to move from file-based storage to MongoDB. Eventually, I'd like to offload administration of game content and settings to a web console, written in ...
1
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1answer
223 views

pre aggregating documents mongodb

In our current setup, most of our database calls are updates where we increment a key by 1. If all one is doing is incrementing certain keys on a document (a lot) in mongodb, and there are several ...
8
votes
4answers
4k views

I want a trivial example of where MongoDB can scale but a relational database will have trouble [closed]

I'm just learning to use MongoDB, and when discussing with other programmers would like a quick example of why NoSQL can be a good choice compared to a traditional RDBMS - however the scenarios I come ...
0
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0answers
211 views

Is this MEAN stack design-pattern suitable at the 1,000-10,000 user scale?

Let's say that when a user logs into a webapp, he sees a list of information. Let's say that list of information is served by one of two dynos (via heroku), but that the list of information ...
0
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1answer
110 views

Planning complex Mongo (And possibly other NoSQL) Databases

There is no "right way" to do anything, but there are "better" and "worse" ways, as well as true and tested ways. I'm studying Mongo and considering it for a project. It's gonna start small but ...
4
votes
3answers
172 views

Algorithm that generates a group of men and women who are each interested in everyone from the other gender

In my dating app, I need to compile lists of men and women where all of the men in the list are potentially interested in all of the women in the list, and vice versa. That is, in a list of 10 men ...
1
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0answers
98 views

Code structure with MongoDB in python

I am new to MongoDB and python. I know how to make basic use of pymongo in order to manipulate documents. I am having trouble finding how to create some structure or governance in what gets inside ...
1
vote
2answers
123 views

What is better for scalability for this specific dataset, MongoDB or MySQL?

I have a web app which has users, forms, and volunteers signed up on those forms. Currently I am using MongoDB and have it setup with a collection for admins, and a collection for forms with ...
0
votes
1answer
105 views

Can I include mongod.exe in my commercial destop based or user self hosted app withou open sourcing it?

I have read the doc and the apgl blog post, but I still have some concerns: Can I include mongodb.exe in my commercial desktop based app? Can I include mongodb.exe in my commercial user self hosted ...
1
vote
0answers
114 views

How to consume inconsistent REST API with Mongo DB backend?

We are using a third party REST API and we are building one of the pages on our ASP.NET site around the data it delivers. We get results in JSON, and interact with it mostly using .NET MongoDB Driver. ...
0
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1answer
94 views

How to determine which service to call

I have modeled my application using multiple 'user' domain objects. Candidate Recruiter Administrator Each entity extends from an AbstractUser implementing UserInterface. interface UserInterface ...
2
votes
4answers
632 views

Are NoSQL databases the best choice for more efficiently querying large amounts of data?

We are planning to build a travel website in which we will be integrating multiple APIs (eg. DOTW, GTA, Expedia) for Hotels. I have initially tried to use MySQL but since there are huge amounts of ...
0
votes
1answer
2k views

Design Pattern for Cron/Schedule in MongoDB

I am looking for a good pattern to handle cron-type data in a MongoDB collection (or collections). I have been peeking at the O'Reilly book MongoDB Applied Design Patterns and poking around the ...
1
vote
1answer
336 views

database migration with data already in the database in production

I don't know much about migrations, but this is a specific question I'm not sure how to answer. In production, how can one change the database format/schema when there is already user data in there? ...