Learning Redis by Vindoo Das

By Vindoo Das

This booklet will introduce Redis and assist you comprehend its a variety of facets.

Starting with an advent to NoSQL, you are going to tips on how to set up Redis and the way to categorise and paintings with information buildings. via operating with genuine global eventualities bearing on utilizing Redis, you will find sharding and indexing recommendations, besides the best way to enhance scalability and function via continual ideas and information migration thoughts. With the aid of a number of examples, you'll learn how to layout internet and enterprise functions. additionally, you will the way to configure Redis for developing clusters and tuning it for performance.

At the tip of this e-book, you will discover crucial pointers on backup and restoration options for the Redis atmosphere

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Sample text

Some popular choices in key-value databases are Redis, Riak, Amazon's DynamoDB, project voldermort, and more. How does Redis fare in some of the nonfunctional requirements as a key-value datastore? Redis is one of the fastest key-value stores, which is seeing a very fast adoption throughout the industry, cutting across many domains. Since this book focuses on Redis, let's find out a bit more about how Redis fares in some of the nonfunctional requirements in brief. We will be talking about them in length as the book progresses: • Insertion of data sets: The insertions of data sets is very fast in key-value datastores and Redis is no exception.

Some of the common examples of data structures are lists, sets, maps, graphs and trees, tuples, and so on. As programmers, we have used data structures in our programs time and again. In an object-oriented world, a simple object is also a data structure since it contains data, and logic to access those data. Every data structure is governed by an algorithm which decides the efficiency and functional capability of it. So, if the algorithm can be classified then it would give a clear idea on the performance of data structure; when data is pumped into the data structure or when data is read or when data is deleted from the data structure.

They are explained as follows: • Set: This command is used to set a value in the Redis server • MSG: This is the key for the message to be stored in the Redis server • Hello World: This is the value stored in the server for the MSG key So, this clears a pattern that we have to keep in mind when working with Redis. Remember, Redis is a key-value NoSQL datastore. The syntax for this is COMMAND KEY VALUE. Continuing with the Hello world program, we will do something more. Let's type in set MSG Learning Redis we get an error message, and when we type set MSG "Hello World", the value that the server is going to return is OK: Overwriting the key with a new value The old value is overwritten with the new value for the given key.

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