Questions tagged [mongodb]
All versions of MongoDB - a scalable, high-performance, open source, document-oriented database.
2,311
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Setting up Mongo with clustering
I'm going to start using Mongo as a database but I will not have it clustered at first. Can I use Mongo on a single machine, then later come back, cluster it and capitalize on the sharding? Or can I ...
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Would appreciate some suggestions on how I should model this data
I am setting up a website that will have users. Users can search for songs and (if signed in) save them to a playlist or their library of songs.
I want it to be like iTunes in that all the songs on ...
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How to check the pre-allocated database file of MongoDB is Used or not?
We have been using MongoDB for a few weeks. One thing we could not understood is Pre-allocated file. Is there any way to check whether the pre-allocated file is currently used by MongoDB or not?
We ...
user77096
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Infrastructure for Highly Concurrent, High Write DB
My requirements are:
3000 Connections
70-85% Write vs Read
Currently, we are maxing out a High-CPU, Extra Large Instance at 700 connections. All 8 cores are maxed. We think it's the number of ...
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Difference between MongoDB's find and findone calls
I am working on a project and I am unsure if there is a difference between the way the find cursor works and the way the findOne cursor works. Is findOne just a wrapper for find().limit(1)? I was ...
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What are the best Database Analytics Companies for analyzing several 1000s or Mio. of products,sum them together and analyze them for statistics?
We will get several thousands products in our database. The problem is that one product can have several different names e.g. "iPad 16GByte UMTS schwarz" or "iPad 16GB 3G black" and so on. But they ...
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In MongoDB, is having lots of small collections better than having one huge collection?
Huge collections have huge indexes that may not fit into RAM. Is that problem entirely solved with sharding ?
If I have lots of small collections with small indexes, what are the options for storing ...
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Is sharding effective for small collections?
It looks like database sharding is great if I have huge collections. What if I have lots of fairly sized collections ? Let's say that for 1 collection of 100 000 000 documents (not very big comments) ...
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Is there any way to efficiently perform the equivalent of DENSE_RANK in MongoDB?
SQL Server and Oracle both have DENSE_RANK functions. Is there a way to do something similar in MongoDB without having to resort to MapReduce? In other words, suppose you have a T-SQL select clause ...
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Good Resources on Operating/Administering MongoDB
What are the best resources for learning how to operate and administer MongoDB?
There are plenty of resources on developing against it - which actually creates a problem when you've got plenty of ...
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CouchDB vs MongoDB [closed]
Evaluating document-oriented storage, what are the pros and cons of CouchDB vs MongoDB?
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