This document provides an overview of NoSQL databases, including why they were created, common characteristics, and classifications. It discusses key concepts like the CAP theorem, BASE vs ACID properties, and gives examples like Cassandra. Cassandra is a distributed, horizontally scalable database designed for high availability. It uses consistent hashing to distribute data and is very fast for writes. The document concludes with tradeoffs between SQL and NoSQL databases and when each may be preferable.
An Intro to NoSQL Databases -- NoSQL databases will not become the new dominators. Relational will still be popular, and used in the majority of situations. They, however, will no longer be the automatic choice. (source : http://martinfowler.com/)
158ltd.com gives a rapid introduction to NoSQL databases: where they came from, the nature of the data models they use, and the different way you have to think about consistency.
An Intro to NoSQL Databases -- NoSQL databases will not become the new dominators. Relational will still be popular, and used in the majority of situations. They, however, will no longer be the automatic choice. (source : http://martinfowler.com/)
158ltd.com gives a rapid introduction to NoSQL databases: where they came from, the nature of the data models they use, and the different way you have to think about consistency.
Can No-SQL technologies hold for the specific requirements that apply to the Telco domain?
This is the Slideshare Presentation by Ericsson Researcher Nicolas Seyvet to accompany his blog "NoSQL for Telco"
http://labs.ericsson.com/blog/nosql-for-telco
In this talk I will explain the motivation behind the multi model database approach, discuss its advantages and limitations, and will keep the presentation concrete and practice oriented by showing concrete usage examples from node.js .
Redis is an open source, advanced key-value data store,Often referred to as a data structure server since keys can contain strings, hashes, lists, sets and sorted sets
Can No-SQL technologies hold for the specific requirements that apply to the Telco domain?
This is the Slideshare Presentation by Ericsson Researcher Nicolas Seyvet to accompany his blog "NoSQL for Telco"
http://labs.ericsson.com/blog/nosql-for-telco
In this talk I will explain the motivation behind the multi model database approach, discuss its advantages and limitations, and will keep the presentation concrete and practice oriented by showing concrete usage examples from node.js .
Redis is an open source, advanced key-value data store,Often referred to as a data structure server since keys can contain strings, hashes, lists, sets and sorted sets
NoSQL Database: Classification, Characteristics and ComparisonMayuree Srikulwong
My students' presentation of a paper "NoSQL Database: New Era of Databases for Big Data Analytics - Classification, Characteristics and Comparison" by Moniruzzaman, A.B.M. and Hossain, S.A. (2013).
A review of database, database management and challenges as of 2016, partly based on the database review research paper by Abadi et al., 2016, and link to my other presentation on database and database management (as of 2015)
The chatbot revolution poses a risk to apps. But are apps the only ones that are challenged by the bot revolution? Robots replacing humans has been a topic of discussion since past few years. But, will this question still prevail even when the artificially intelligent bots don’t have a physical form?
The Most effective models for Customer Support OperationsDavid Loia
3,500+ implementations of cloud-based customer relationship management has taught us a lot about the best -run customer support operations in the world.
comprehensive Introduction to NoSQL solutions inside the big data landscape. Graph store? Column store? key Value store? Document Store? redis or memcache? dynamo db? mongo db ? hbase? Cloud or open source?
Modeling Data and Queries for Wide Column NoSQLScyllaDB
Discover how to model data for wide column databases such as ScyllaDB and Apache Cassandra. Contrast the differerence from traditional RDBMS data modeling, going from a normalized “schema first” design to a denormalized “query first” design. Plus how to use advanced features like secondary indexes and materialized views to use the same base table to get the answers you need.
Apache Cassandra Lunch #64: Cassandra for .NET DevelopersAnant Corporation
In Cassandra Lunch #64: Cassandra for .NET Developers, Co-founder, Customer Experience Architect, and Sitecore MVP of Anant, Eric Ramseur will be presenting on Cassandra for .NET developers.
Accompanying Blog: Coming Soon!
Accompanying YouTube: https://youtu.be/9DwnDGak6Yo
Sign Up For Our Newsletter: http://eepurl.com/grdMkn
Join Cassandra Lunch Weekly at 12 PM EST Every Wednesday: https://www.meetup.com/Cassandra-DataStax-DC/events/
Cassandra.Link:
https://cassandra.link/
Follow Us and Reach Us At:
Anant:
https://www.anant.us/
Awesome Cassandra:
https://github.com/Anant/awesome-cassandra
Cassandra.Lunch:
https://github.com/Anant/Cassandra.Lunch
Email:
solutions@anant.us
LinkedIn:
https://www.linkedin.com/company/anant/
Twitter:
https://twitter.com/anantcorp
Eventbrite:
https://www.eventbrite.com/o/anant-1072927283
Facebook:
https://www.facebook.com/AnantCorp/
Join The Anant Team:
https://www.careers.anant.us
Introducing the ultimate MariaDB cloud, SkySQLMariaDB plc
SkySQL is the first and only database-as-a-service (DBaaS) engineered for MariaDB by MariaDB, to use a state-of-the-art multi-cloud architecture built on Kubernetes and ServiceNow, and to deploy databases and data warehouses for transactional, analytical and hybrid transactional/analytical workloads.
In this session, we’ll lay out the vision for SkySQL, provide an overview of its capabilities, take a tour of its architecture, and discuss the long-term roadmap. We’ll wrap things up with a live demo of SkySQL, including a preview of its deep learning–based workload analysis and visualization interface.
NetflixOSS Meetup S3 E1, covering latest components in Distributed Databases, Telemetry systems, Big Data tools and more. Speakers from Netflix, IBM Watson, Pivotal and Nike Digital
A Comprehensive Introduction to Apache Cassandra.
Agenda:
- What is NoSQL?
- What is Cassandra?
- Architecture
- Data Model
- Key Features and Benefits
- Cassandra Tools
-- CQL
-- Nodetool
-- DataStax Opscenter
- Who’s using Cassandra?
MySQL Cluster (NDB) - Best Practices Percona Live 2017Severalnines
This presentation by Johan Andersson at Percona Live 2017 in Santa Clara, California gives detailed information on all you need to know to effectively deploy and manage MySQL Cluster technology in your environment.
Big Data in 200 km/h | AWS Big Data Demystified #1.3 Omid Vahdaty
What we're about
A while ago I entered the challenging world of Big Data. As an engineer, at first, I was not so impressed with this field. As time went by, I realised more and more, The technological challenges in this area are too great to master by one person. Just look at the picture in this articles, it only covers a small fraction of the technologies in the Big Data industry…
Consequently, I created a meetup detailing all the challenges of Big Data, especially in the world of cloud. I am using AWS infrastructure to answer the basic questions of anyone starting their way in the big data world.
how to transform data (TXT, CSV, TSV, JSON) into Parquet, ORCwhich technology should we use to model the data ? EMR? Athena? Redshift? Spectrum? Glue? Spark? SparkSQL?how to handle streaming?how to manage costs?Performance tips?Security tip?Cloud best practices tips?
Some of our online materials:
Website:
https://big-data-demystified.ninja/
Youtube channels:
https://www.youtube.com/channel/UCzeGqhZIWU-hIDczWa8GtgQ?view_as=subscriber
https://www.youtube.com/channel/UCMSdNB0fGmX5dXI7S7Y_LFA?view_as=subscriber
Meetup:
https://www.meetup.com/AWS-Big-Data-Demystified/
https://www.meetup.com/Big-Data-Demystified
Facebook Group :
https://www.facebook.com/groups/amazon.aws.big.data.demystified/
Facebook page (https://www.facebook.com/Amazon-AWS-Big-Data-Demystified-1832900280345700/)
Audience:
Data Engineers
Data Science
DevOps Engineers
Big Data Architects
Solution Architects
CTO
VP R&D
Casandra is a open-source, distributed, highly scalable and fault-tolerant database. It is a best choice for managing structured, semi-structured or unstructured data at a large amount.
For this upcoming meetup, we welcome Patrick Eaton PhD, Systems Architect at Stackdriver, and Joey Imbasciano, Cloud Platform Engineer at Stackdriver.
What You'll Learn At This Meetup:
• Why Stackdriver chose Cassandra over other DB offerings
• Stackdriver's data pipeline that runs into Cassandra
• Operating Cassandra Running on AWS
• Stackdriver's approach to disaster recovery
Patrick and Joey will be presenting their use of Apache Cassandra at Stackdriver, some lesson's learned, technical tips and a Q&A to end the evening.
AWS Big Data Demystified #1: Big data architecture lessons learned Omid Vahdaty
AWS Big Data Demystified #1: Big data architecture lessons learned . a quick overview of a big data techonoligies, which were selected and disregard in our company
The video: https://youtu.be/l5KmaZNQxaU
dont forget to subcribe to the youtube channel
The website: https://amazon-aws-big-data-demystified.ninja/
The meetup : https://www.meetup.com/AWS-Big-Data-Demystified/
The facebook group : https://www.facebook.com/Amazon-AWS-Big-Data-Demystified-1832900280345700/
Hybrid optimization of pumped hydro system and solar- Engr. Abdul-Azeez.pdffxintegritypublishin
Advancements in technology unveil a myriad of electrical and electronic breakthroughs geared towards efficiently harnessing limited resources to meet human energy demands. The optimization of hybrid solar PV panels and pumped hydro energy supply systems plays a pivotal role in utilizing natural resources effectively. This initiative not only benefits humanity but also fosters environmental sustainability. The study investigated the design optimization of these hybrid systems, focusing on understanding solar radiation patterns, identifying geographical influences on solar radiation, formulating a mathematical model for system optimization, and determining the optimal configuration of PV panels and pumped hydro storage. Through a comparative analysis approach and eight weeks of data collection, the study addressed key research questions related to solar radiation patterns and optimal system design. The findings highlighted regions with heightened solar radiation levels, showcasing substantial potential for power generation and emphasizing the system's efficiency. Optimizing system design significantly boosted power generation, promoted renewable energy utilization, and enhanced energy storage capacity. The study underscored the benefits of optimizing hybrid solar PV panels and pumped hydro energy supply systems for sustainable energy usage. Optimizing the design of solar PV panels and pumped hydro energy supply systems as examined across diverse climatic conditions in a developing country, not only enhances power generation but also improves the integration of renewable energy sources and boosts energy storage capacities, particularly beneficial for less economically prosperous regions. Additionally, the study provides valuable insights for advancing energy research in economically viable areas. Recommendations included conducting site-specific assessments, utilizing advanced modeling tools, implementing regular maintenance protocols, and enhancing communication among system components.
Saudi Arabia stands as a titan in the global energy landscape, renowned for its abundant oil and gas resources. It's the largest exporter of petroleum and holds some of the world's most significant reserves. Let's delve into the top 10 oil and gas projects shaping Saudi Arabia's energy future in 2024.
About
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
Technical Specifications
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
Key Features
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface
• Compatible with MAFI CCR system
• Copatiable with IDM8000 CCR
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
Application
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
Industrial Training at Shahjalal Fertilizer Company Limited (SFCL)MdTanvirMahtab2
This presentation is about the working procedure of Shahjalal Fertilizer Company Limited (SFCL). A Govt. owned Company of Bangladesh Chemical Industries Corporation under Ministry of Industries.
2. Overview
● Why NoSQL?
● Classification
● CAP Theorem
● BASE vs ACID
● Cassandra in Action
● Summary
3. Overview
● Why NoSQL?
● Classification
● CAP Theorem
● BASE vs ACID
● Cassandra in Action
● Summary
4. Why NoSQL?
● original intention: modern web-scale DBs
○ amount of data drastically increased
○ data in the web is less structured
● higher requirements regarding performance
● some problems are easier to solve without the relational approach
● scaling out & running on commodity HW is much cheaper than scaling up
10. Key/Value Stores
● data model: collection of key/value pairs
● keys and values can be complex compounds
● based on Amazon’s Dynamo Paper
● designed to handle massive load
11. Key/Value Stores
● no complex query filters
● all joins must be in the code
● easy to distribute across cluster
● very predictable performance -> O(1)
12. Wide Column Stores
● Tables are similar to RDBMS, but semi-structured
● based on Google’s BigTable
● Rows can have arbitrary columns
13. Wide Column Stores -> BigTable
● <RowKey, ColumnKey, Timestamp> triple as key for lookups, inserts, deletes
● ColumnKey uses syntax family:qualifier
● arbitrary columns on a row-by-row basis
● does not support a relational model
○ no table-wide integrity constraints
○ no multi-row transactions
source: http://research.google.com/archive/bigtable.html
14. Document Stores
● inspired by Lotus Notes
● central concept of a Document
● Documents encapsulate/encode data in some format/encoding
● Encodings:
○ XML, YAML, JSON, BSON, PDF
17. Graph Databases
● based on Graph Theory -> G = (V, E)
● designed for data that is well represented in a graph
○ social networks, public transport links, network topologies, road maps
● nodes, edges, properties are used to represent and store data
● graph relationships are queryable
22. Overview
● Why NoSQL?
● Classification
● CAP Theorem
● BASE vs ACID
● Cassandra in Action
● Summary
23. ACID
● Atomicity
○ all-or-nothing approach
● Consistency
○ DB will be in a consistent state before & after a transaction
● Isolation
○ transaction will behave as if it’s the only operation being performed upon the
DB
● Durability
○ once a transaction is committed, it is durably preserved
● CA-Systems are ACID-Systems
24. BASE
● an application that works basically all the time, does not have to be
consistent all the time, but will be in some known state eventually
● Basically Available
○ achieved by using a highly distributed approach
● Soft State
○ state of the system is always “soft” due to eventual consistency
● Eventual Consistency (in German: schlussendliche Konsistenz)
○ at some point in the future, the data will be consistent
○ no guarantees are made about when this will occur
25. BASE vs ACID
source: http://www.cs.berkeley.edu/~brewer/cs262b-2004/PODC-keynote.pdf
26. Overview
● Why NoSQL?
● Classification
● CAP Theorem
● BASE vs ACID
● Cassandra in Action
● Summary
27. Cassandra
● initially created by Facebook for Inbox Search
● distributed, horizontally scalable database
● high availability
● very flexible data model
○ data might be structured, semi-structured, unstructured
● commercial support through DataStax
28. Cassandra - Design
● all nodes are equally important
● no Single-Point-of-Failure
● no central controller
● no master/slave relationships
● every node knows how to route requests
and where the data lives
source: http://cassandra.apache.org/
32. Writes are very fast
● All writes are sequential
● no reading & seeking before a
write
● Each of the N node will perform
the following upon receiving the
RowMutation message:
○ Append write to the commit log
○ Update in-memory Memtable data
structure
○ Write is done!
● If Memtable gets full, it’s flushed
to disk (SSTable)
source: http://www.roman10.net/how-apache-cassandra-write-works/
33. Write Requests
● Client requests can go to any node in the cluster because all nodes are
peers
source: http://www.datastax.com/documentation/cassandra/2.0/cassandra/architecture/architectureClientRequestsWrite.html
write consistency level
is configurable
34. Write Requests
● Cassandra chooses one Coordinator per remote data center to handle
requests to replicas
● coordinator only needs to forward WR to one node in each remote data
center
source: http://www.datastax.com/documentation/cassandra/2.0/cassandra/architecture/architectureClientRequestsWrite.html
35. Read Requests
● Two different types of Read Requests
○ direct read request (RR)
○ background read repair request (RRR)
● number of replicas contacted by a RR is determined by Consistency Level
● RRR are sent to any additional nodes that did not get a direct RR
● RRR ensure consistency
39. CQL
● very similar to SQL
● does not support JOINS / Subqueries
● no referential integrity
● no cascading operations
We denormalize the data because joins
are not performant in a distributed
system
44. Cassandra vs MySQL (50GB)
● MySQL
○ writes avg: ~300ms
○ reads avg: ~350ms
● Cassandra
○ writes avg: ~0.12ms
○ reads avg: ~15ms
source: http://www.odbms.org/wp-content/uploads/2013/11/cassandra.pdf
45. Overview
● Why NoSQL?
● Classification
● CAP Theorem
● BASE vs ACID
● Cassandra in Action
● Summary
46. Summary
● elastic scaling (scaling out instead of up)
● huge amounts of data can be handled while maintaining high
throughput rates
● require less DBA’s and management resources
○ automatic repairs/data distribution
○ simpler data models
● better economics
○ cost per GB is much lower than for RDBMS due to clusters of
commodity HW
○ we handle more data with less money
● flexible data models
○ very relaxed or even non-existent data model restrictions
○ changes to data model are much cheaper
47. Summary
● might not be mature enough for enterprises
● compatibility issues regarding standards
○ each DB has its own API
○ not easy to switch to another NoSQL DB
● search support is not the same as in RDBMS
● easier to find experienced RDBMS experts than NoSQL experts
48. Which DB for which purpose?
● NoSQL is an alternative
○ addresses certain limitations of the relational DB world
● depends on characteristics of data
○ if data is well structured -> relational DB might be better
○ if data is very complex -> might be difficult to map it to the
relational model
● depends on volatility of the data model
○ what if schema changes daily?
● relational DBs still have their pluses
○ relational model / transactions / query language
○ should be used when multi-row transactions and strict consistency is
required