Next Generation Databases by Guy Harrison
Author:Guy Harrison
Language: eng
Format: epub
Publisher: Apress, Berkeley, CA
Consistent Hashing
Cassandra and other dynamo-based databases distribute data throughout the cluster by using consistent hashing. The rowkey (analogous to a primary key in an RDBMS) is hashed. Each node is allocated a range of hash values, and the node that has the specific range for a hashed key value takes responsibility for the initial placement of that data.
In the default Cassandra partitioning scheme, the hash values range from -263 to 263-1. Therefore, if there were four nodes in the cluster and we wanted to assign equal numbers of hashes to each node, then the hash ranges for each would be approximately as follows:Node
Low Hash
High Hash
Download
This site does not store any files on its server. We only index and link to content provided by other sites. Please contact the content providers to delete copyright contents if any and email us, we'll remove relevant links or contents immediately.
Algorithms of the Intelligent Web by Haralambos Marmanis;Dmitry Babenko(8296)
Azure Data and AI Architect Handbook by Olivier Mertens & Breght Van Baelen(6720)
Building Statistical Models in Python by Huy Hoang Nguyen & Paul N Adams & Stuart J Miller(6699)
Serverless Machine Learning with Amazon Redshift ML by Debu Panda & Phil Bates & Bhanu Pittampally & Sumeet Joshi(6570)
Data Wrangling on AWS by Navnit Shukla | Sankar M | Sam Palani(6354)
Driving Data Quality with Data Contracts by Andrew Jones(6304)
Machine Learning Model Serving Patterns and Best Practices by Md Johirul Islam(6070)
Learning SQL by Alan Beaulieu(5994)
Weapons of Math Destruction by Cathy O'Neil(5778)
Big Data Analysis with Python by Ivan Marin(5354)
Data Engineering with dbt by Roberto Zagni(4351)
Solidity Programming Essentials by Ritesh Modi(3999)
Time Series Analysis with Python Cookbook by Tarek A. Atwan(3857)
Pandas Cookbook by Theodore Petrou(3569)
Blockchain Basics by Daniel Drescher(3292)
Hands-On Machine Learning for Algorithmic Trading by Stefan Jansen(2905)
Feature Store for Machine Learning by Jayanth Kumar M J(2812)
Learn T-SQL Querying by Pam Lahoud & Pedro Lopes(2794)
Mastering Python for Finance by Unknown(2744)
