[Chapter 0] Redis Introduction and application Scenarios

NoSQL (NoSQL = not-only sql), meaning "not just SQL," is a new revolutionary movement in the database, which was raised early on, and the trend grew even more in the 2009. NoSQL advocates are advocating the use of non-relational data storage, which is undoubtedly a new kind of thinking injection, relative to the overwhelming use of relational databases.

Features of NoSQL:

1. Deal with a lot of poor data

2. Running on a low-cost PC server cluster

3. Addressing performance bottlenecks

NoSQL Application Scenarios:

1. High concurrency for data read and write

2. Efficient storage and access to massive amounts of data

3. High scalability and high availability for data

Redis is an open source (BSD licensed), In-memoryData Structure Store, used as database, cache and message broker. IT supports data structures such asStrings, Hashes, Lists, Sets, Sorted setswith range queries,Bitmaps, Hyperloglogs andGeospatial IndexesWith radius queries.

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[Chapter 0] Redis Introduction and application Scenarios