[MongoDB]: Capped Collection
Capped collections are fixed-size collections that support high-throughput operations that insert and retrieve documents based on insertion order. Capped collections work in a way similar to circular buffers: once a collection fills its allocated space, it makes room for new…
[MongoDB]: Geospatial Index
Let’s start with a simple example consisting of four points in a plane. The meaning of the units of the coordinate systems can be whatever you choose: cms, miles, kilometers etc. Now, let us insert these points into a collection…
[MongoDB]: Useful books & Interactive session urls
MongoDB Reference Cards http://info.mongodb.com/rs/mongodb/images/mongodb_qrc_booklet.pdf The Little MongoDB Book (The ultimate Intro to MongoDB) http://openmymind.net/mongodb.pdf FYI … very useful MongoDB & Geospace Index Interactive sessions below. http://mongly.openmymind.net/tutorial/index http://mongly.openmymind.net/geo/index
What is MongoDB ? Beautiful video !
https://www.youtube.com/watch?v=CvIr-2lMLsk
MongoDB 3.0
Today MongoDB Inc is announcing the general availability of MongoDB 3.0. You can download here: www.mongodb.com/subscription/downloads MongoDB 3.0 expands the use cases for MongoDB by introducing a new pluggable storage engine architecture. A new storage engine, called WiredTiger, provides significantly improved…
[MongoDB]: Database locking
High lock or slow reads are often symptoms of other underlying issues. The various root causes for these issues include, but are not limited to: Schema design Document Movement (I’ll focus on this topic in more detail below) Poor index…
[MongoDB]: Roles and Responsibilities
Roles and Responsibilities As with any database, applications deployed on MongoDB require careful planning and the coordination of a number of roles in an organization’s technical teams to ensure successful maintenance and operation. Organizations tend to find many of the…
[MongoDB]: Database References
MongoDB does not support joins. In MongoDB some data is denormalized, or stored with related data in documents to remove the need for joins. However, in some cases it makes sense to store related information in separate documents, typically in different…
[MongoDB]: Selecting a Shard Key for MongoDB
On Selecting a Shard Key for MongoDB – Bad-Ass Unicorn One of the killer features of MongoDB is the built-in sharding capabilities. This feature lets you spread out both your data, and your database workload, over multiple commodity-scale machines. While…