Cassandra High Performance Cookbook by Edward Capriolo

By Edward Capriolo

Over one hundred fifty recipes to layout and optimize huge scale Apache Cassandra deployments
* Get the easiest out of Cassandra utilizing this effective recipe bank
* Configure and track Cassandra elements to reinforce performance
* install Cassandra in quite a few environments and display screen its performance
* good illustrated, step by step recipes to make all projects glance easy!

In Detail

Apache Cassandra is a fault-tolerant, allotted info shop which bargains linear scalability permitting it to be a garage platform for giant excessive quantity websites.

This booklet offers designated recipes that describe the best way to use the gains of Cassandra and enhance its functionality. Recipes conceal subject matters starting from constructing Cassandra for the 1st time to complicated a number of facts middle installations. The recipe structure provides the knowledge in a concise actionable form.

The publication describes intimately how beneficial properties of Cassandra should be tuned and what the potential results of tuning might be. Recipes comprise the way to entry information kept in Cassandra and use 3rd get together instruments that can assist you out. The ebook additionally describes the way to visual display unit and do capability making plans to make sure it truly is functioning at a excessive point. in the direction of the top, it takes you thru using libraries and 3rd social gathering functions with Cassandra and Cassandra integration with Hadoop.

What you are going to research from this book
* engage with Cassandra utilizing the command line interface
* Write courses that entry info in Cassandra
* Configure and song Cassandra elements to augment performance
* version info to optimize garage and access
* Use tunable consistency to optimize info access
* set up Cassandra in unmarried and a number of info middle environments
* display screen the functionality of Cassandra
* deal with a cluster by way of becoming a member of and elimination nodes
* Use libraries and 3rd social gathering functions with Cassandra
* combine Cassandra with Hadoop

Approach

This is a cookbook and all projects are approached as recipes. A recipe describes a job and descriptions the stairs essential to whole this task.

Some recipes within the booklet are examples of writing code. An instance of it is a recipe that shops and accesses the entries of a telephone book in Cassandra. The recipe includes an outline of this system, an entire code instance is given, the instance is administered, the output is displayed, and at last the the way it works part describes the method or code in larger detail.

Other recipes within the publication describe a role. An instance of this can be a recipe that takes a image again up of knowledge in Cassandra. This recipe incorporates a description of the method, it then exhibits the way to run the photo command and make sure that it labored, it then explains what the picture command does behind the curtain, ultimately the 'see also' part references different similar recipes similar to the recipe to revive a snapshot.

Who this booklet is written for

This publication is designed for directors, builders, and information architects who're drawn to Apache Cassandra for redundant, hugely acting, and scalable info garage. in general those clients must have adventure operating with a database know-how, a number of node computing device clusters, and excessive availability solutions.

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Sample text

1. Client instance that can communicate with Cassandra. close(); } } 2. c01. dht. [ RandomPartitioner [java] cluster name Test Cluster [java] keyspace Keyspace1 [java] keyspace system How it works... Cassandra clusters are symmetric in that you can connect to any node in the cluster and perform operations. Thrift has a multi-step connection process. Client instance. Client, users can call multiple methods without having to reconnect. We called some methods such as describe_cluster_name() that show some information about the cluster and then disconnect.

Setting up a build and test environment for tasks in this book Cassandra does not have a standardized data access language such as SQL or XPATH. Access to Cassandra is done through the Application Programmer Interface (API). Cassandra has support for Thrift, which generates bindings for a variety of languages. Since Cassandra is written in Java, these bindings are well established, part of the Cassandra distribution, and stable. Thus, it makes sense to have a build environment capable of compiling and running Java applications to access Cassandra.

After changing the level, do set, get, and list operations as normal: [default@testkeyspace] get cars2['mynewcar']; => (column=make, value=ford, timestamp=1298580528208000) => (column=weight, value=2000, timestamp=1298580306095000) Returned 2 results. 43 The Command-line Interface How it works... Changing the consistency level only affects the current CLI session. Doing this is helpful when trying to troubleshoot errors that users may be reporting. Consistency level ONE is forgiving in that write or read operations will succeed with multiple node failures, while other levels such as ALL are less forgiving.

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