The concept of InfiniFlux:the ultra high-speed database that stores and processes time series data.
InfiniFlux has very different characteristics compared to the conventional DBMS such as Oracle and DB2 in order to provide high-speed processing.
INFINIFLUX
is the World's Fastest Time Series DBMS for IoT and BigData.
Insert more than millions of records/sec in a single node
Select and Search billions of records/sec in a single node
Support ANSI SQL syntax for time series features
Support Full-Text search by powerful SQL extensions
Extremely fast time series data analysis
Support Ipv4 and Ipv6 datatypes for easy IP manipulation
Support CLOB and BLOB datatypes for big sized data
RubiX: A caching framework for big data engines in the cloud. Helps provide data caching capabilities to engines like Presto, Spark, Hadoop, etc transparently without user intervention.
Building tiered data stores using aesop to bridge sql and no sql systemsRegunath B
Slides from my talk on building tiered data stores using Aesop to bridge SQL and NoSQL data stores. Aesop is a pub-sub like change data capture and propagation system.
When dealing with infrastructure we often go through the process of determining the different resources needed to attend our application requirements. This talks looks into the way that resources are used by MongoDB and which aspects should be considered to determined the sizing, capacity and deployment of a MongoDB cluster given the different scenarios, different sets of operations and storage engines available.
INFINIFLUX
is the World's Fastest Time Series DBMS for IoT and BigData.
Insert more than millions of records/sec in a single node
Select and Search billions of records/sec in a single node
Support ANSI SQL syntax for time series features
Support Full-Text search by powerful SQL extensions
Extremely fast time series data analysis
Support Ipv4 and Ipv6 datatypes for easy IP manipulation
Support CLOB and BLOB datatypes for big sized data
RubiX: A caching framework for big data engines in the cloud. Helps provide data caching capabilities to engines like Presto, Spark, Hadoop, etc transparently without user intervention.
Building tiered data stores using aesop to bridge sql and no sql systemsRegunath B
Slides from my talk on building tiered data stores using Aesop to bridge SQL and NoSQL data stores. Aesop is a pub-sub like change data capture and propagation system.
When dealing with infrastructure we often go through the process of determining the different resources needed to attend our application requirements. This talks looks into the way that resources are used by MongoDB and which aspects should be considered to determined the sizing, capacity and deployment of a MongoDB cluster given the different scenarios, different sets of operations and storage engines available.
Deploying any software can be a challenge if you don't understand how resources are used or how to plan for the capacity of your systems. Whether you need to deploy or grow a single MongoDB instance, replica set, or tens of sharded clusters then you probably share the same challenges in trying to size that deployment.
Optimizing Latency-Sensitive Queries for Presto at Facebook: A Collaboration ...Alluxio, Inc.
Alluxio Global Online Meetup
May 7, 2020
For more Alluxio events: https://www.alluxio.io/events/
Speakers:
Rohit Jain, Facebook
Yutian "James" Sun, Facebook
Bin Fan, Alluxio
For many latency-sensitive SQL workloads, Presto is often bound by retrieving distant data. In this talk, Rohit Jain, James Sun from Facebook and Bin Fan from Alluxio will introduce their teams’ collaboration on adding a local on-SSD Alluxio cache inside Presto workers to improve unsatisfied Presto latency.
This talk will focus on:
- Insights of the Presto workloads at Facebook w.r.t. cache effectiveness
- API and internals of the Alluxio local cache, from design trade-offs (e.g. caching granularity, concurrency level and etc) to performance optimizations.
- Initial performance analysis and timeline to deliver this feature for general Presto users.
- Discussion on our future work to optimize cache performance with deeper integration with Presto
Hybrid collaborative tiered storage with alluxioThai Bui
Systems that deal with AWS S3 often come with a negative performance impact. There's no co-location and the data has to move through slower, often congested wire networks. Alluxio can provide a caching layer for the data, however there's still the question of how and when to move which data. Should all the data by default be cached or should they be cached when used? In this talk, I will explore that gray area in between where the users and the dataset publishers will collaborate to decide what and how the data is cache in a tiered-storage architecture to maximize performance and minimize operating costs.
SQL-based databases have been around for decades and they power a wide range of applications. So what exactly do NoSQL databases bring to the table? In this webcast, you'll find out how NoSQL can liberate your development cycle, allow your application to scale and improve your system's uptime.
A fotopedia presentation made at the MongoDay 2012 in Paris at Xebia Office.
Talk by Pierre Baillet and Mathieu Poumeyrol.
French Article about the presentation:
http://www.touilleur-express.fr/2012/02/06/mongodb-retour-sur-experience-chez-fotopedia/
Video to come.
Learn how Aerospike's Hybrid Memory Architecture brings transactions and analytics together to power real-time Systems of Engagement ( SOEs) for companies across AdTech, financial services, telecommunications, and eCommerce. We take a deep dive into the architecture including use cases, topology, Smart Clients, XDR and more. Aerospike delivers predictable performance, high uptime and availability at the lowest total cost of ownership (TCO).
Why You Definitely Don’t Want to Build Your Own Time Series DatabaseInfluxData
At Outlyer, an infrastructure monitoring tool, we had to build our own TSDB back in 2015 to support our service. Two years later, we decided to take a different direction after seeing for ourselves how hard it is to build and scale a TSDB. This talk will review our journey, the challenges we hit trying to scale a TSDB for large customers and hopefully talk some people out of trying to build one themselves because it is not easy!
Hadoop 2.x Cluster Architecture
Technological Geeks:- Video 3
Technological Geeks Hindi :- Video 3
Namenode ,Datanode, SecondaryNAmenode,
High availibility in Hadoop2
Federation in Hadoop2
What is Namespace
HeartBeat Signal
Yarn architecture
In-Memory Computing: How, Why? and common PatternsSrinath Perera
Traditionally, big data is mostly read from disks and processed. However, most big data systems are latency bound, which means often the CPU sits idle waiting for data to arrive. This problem is more prevalent with use cases like graph searches that need to randomly access different parts of datasets. In-memory computing proposes an alternative model where data is loaded or stored in-memory and processed instead of processing them from the disk. Although such designs cost more in terms of memory, sometimes resulting systems can have faster order of magnitudes (e.g. 1000X), which could lead to savings in the long run. With rapidly falling memory prices, this difference is reducing by the day. Furthermore, in-memory computing can enable use cases like ad hoc analysis over a large set of data that was not possible earlier. This talk will provide an overview of in-memory technology and discuss how WSO2 technologies like complex event processing that can be used to build in-memory solutions. It will also provide an overview of upcoming improvements in the WSO2 platform.
Capacity Planning For Your Growing MongoDB ClusterMongoDB
Your MongoDB deployment is growing, but are you prepared for that growth? Capacity planning is an essential practice when deploying any database system. You need to understand your usage patterns and determine the appropriate hardware based on your application's needs. Scaling reads and scaling writes will require different types of resources. With the proper tools in place, you can understand your working set, gain visibility into when it's time to add resources or start sharding and avoid performance issues. In this session, you'll learn how to use MongoDB Management Service and other tools to identify patterns and predict growth, ensuring your success with MongoDB.
New to MongoDB? We'll provide an overview of installation, high availability through replication, scale out through sharding, and options for monitoring and backup. No prior knowledge of MongoDB is assumed. This session will jumpstart your knowledge of MongoDB operations, providing you with context for the rest of the day's content.
Lessons learned while taking Presto from alpha to production at Twitter. Presented at the Presto meetup at Facebook on 2015.03.22.
Video: https://www.facebook.com/prestodb/videos/531276353732033/
Deploying any software can be a challenge if you don't understand how resources are used or how to plan for the capacity of your systems. Whether you need to deploy or grow a single MongoDB instance, replica set, or tens of sharded clusters then you probably share the same challenges in trying to size that deployment.
Optimizing Latency-Sensitive Queries for Presto at Facebook: A Collaboration ...Alluxio, Inc.
Alluxio Global Online Meetup
May 7, 2020
For more Alluxio events: https://www.alluxio.io/events/
Speakers:
Rohit Jain, Facebook
Yutian "James" Sun, Facebook
Bin Fan, Alluxio
For many latency-sensitive SQL workloads, Presto is often bound by retrieving distant data. In this talk, Rohit Jain, James Sun from Facebook and Bin Fan from Alluxio will introduce their teams’ collaboration on adding a local on-SSD Alluxio cache inside Presto workers to improve unsatisfied Presto latency.
This talk will focus on:
- Insights of the Presto workloads at Facebook w.r.t. cache effectiveness
- API and internals of the Alluxio local cache, from design trade-offs (e.g. caching granularity, concurrency level and etc) to performance optimizations.
- Initial performance analysis and timeline to deliver this feature for general Presto users.
- Discussion on our future work to optimize cache performance with deeper integration with Presto
Hybrid collaborative tiered storage with alluxioThai Bui
Systems that deal with AWS S3 often come with a negative performance impact. There's no co-location and the data has to move through slower, often congested wire networks. Alluxio can provide a caching layer for the data, however there's still the question of how and when to move which data. Should all the data by default be cached or should they be cached when used? In this talk, I will explore that gray area in between where the users and the dataset publishers will collaborate to decide what and how the data is cache in a tiered-storage architecture to maximize performance and minimize operating costs.
SQL-based databases have been around for decades and they power a wide range of applications. So what exactly do NoSQL databases bring to the table? In this webcast, you'll find out how NoSQL can liberate your development cycle, allow your application to scale and improve your system's uptime.
A fotopedia presentation made at the MongoDay 2012 in Paris at Xebia Office.
Talk by Pierre Baillet and Mathieu Poumeyrol.
French Article about the presentation:
http://www.touilleur-express.fr/2012/02/06/mongodb-retour-sur-experience-chez-fotopedia/
Video to come.
Learn how Aerospike's Hybrid Memory Architecture brings transactions and analytics together to power real-time Systems of Engagement ( SOEs) for companies across AdTech, financial services, telecommunications, and eCommerce. We take a deep dive into the architecture including use cases, topology, Smart Clients, XDR and more. Aerospike delivers predictable performance, high uptime and availability at the lowest total cost of ownership (TCO).
Why You Definitely Don’t Want to Build Your Own Time Series DatabaseInfluxData
At Outlyer, an infrastructure monitoring tool, we had to build our own TSDB back in 2015 to support our service. Two years later, we decided to take a different direction after seeing for ourselves how hard it is to build and scale a TSDB. This talk will review our journey, the challenges we hit trying to scale a TSDB for large customers and hopefully talk some people out of trying to build one themselves because it is not easy!
Hadoop 2.x Cluster Architecture
Technological Geeks:- Video 3
Technological Geeks Hindi :- Video 3
Namenode ,Datanode, SecondaryNAmenode,
High availibility in Hadoop2
Federation in Hadoop2
What is Namespace
HeartBeat Signal
Yarn architecture
In-Memory Computing: How, Why? and common PatternsSrinath Perera
Traditionally, big data is mostly read from disks and processed. However, most big data systems are latency bound, which means often the CPU sits idle waiting for data to arrive. This problem is more prevalent with use cases like graph searches that need to randomly access different parts of datasets. In-memory computing proposes an alternative model where data is loaded or stored in-memory and processed instead of processing them from the disk. Although such designs cost more in terms of memory, sometimes resulting systems can have faster order of magnitudes (e.g. 1000X), which could lead to savings in the long run. With rapidly falling memory prices, this difference is reducing by the day. Furthermore, in-memory computing can enable use cases like ad hoc analysis over a large set of data that was not possible earlier. This talk will provide an overview of in-memory technology and discuss how WSO2 technologies like complex event processing that can be used to build in-memory solutions. It will also provide an overview of upcoming improvements in the WSO2 platform.
Capacity Planning For Your Growing MongoDB ClusterMongoDB
Your MongoDB deployment is growing, but are you prepared for that growth? Capacity planning is an essential practice when deploying any database system. You need to understand your usage patterns and determine the appropriate hardware based on your application's needs. Scaling reads and scaling writes will require different types of resources. With the proper tools in place, you can understand your working set, gain visibility into when it's time to add resources or start sharding and avoid performance issues. In this session, you'll learn how to use MongoDB Management Service and other tools to identify patterns and predict growth, ensuring your success with MongoDB.
New to MongoDB? We'll provide an overview of installation, high availability through replication, scale out through sharding, and options for monitoring and backup. No prior knowledge of MongoDB is assumed. This session will jumpstart your knowledge of MongoDB operations, providing you with context for the rest of the day's content.
Lessons learned while taking Presto from alpha to production at Twitter. Presented at the Presto meetup at Facebook on 2015.03.22.
Video: https://www.facebook.com/prestodb/videos/531276353732033/
70-646 Windows Server 2008 Server Administratormaefrova
This exam measures your ability to accomplish the technical tasks listed below. The percentages indicate the relative weight of each major topic area on the exam.https://www.pass4sureexam.com/70-646.html
http://www.infiniflux.com/download
Most of IoT data are generated from devices. Thus, these data are connected with network and have IP addresses of departures and destinations in general.
•InfiniFluxprovides network data type on a DBMS engine level, andalso supports convenient functions to conduct operations.
•Supported network data types:
-IPv4: 4 byteaddress
-IPv6: 16 byte address
-Network mask: it identifies IPv4 orIPv6.
•Supported operations and functions:
CONTAINS, CONTAINED
TO_IPV4(), TO_IPV4_SAFE()
TO_IPV6(), TO_IPV6_SAFE()
MIN(), MAX()
[Input Speed]
Increase TPS as the number of input processes increased and the TPS is 1,090,000 for the input of 5 processes.
[Query Speed]
Measuring query speed with the conditions of time period among 7,000,000,000 stored data.
AWS re:Invent 2016| DAT318 | Migrating from RDBMS to NoSQL: How Sony Moved fr...Amazon Web Services
In this session, you will learn the key differences between a relational database management service (RDBMS) and non-relational (NoSQL) databases like Amazon DynamoDB. You will learn about suitable and unsuitable use cases for NoSQL databases. You'll learn strategies for migrating from an RDBMS to DynamoDB through a 5-phase, iterative approach. See how Sony migrated an on-premises MySQL database to the cloud with Amazon DynamoDB, and see the results of this migration.
An overview of various database technologies and their underlying mechanisms over time.
Presentation delivered at Alliander internally to inspire the use of and forster the interest in new (NOSQL) technologies. 18 September 2012
Leverage Zilliz Serverless - Up to 50X Saving for Your Vector Storage CostZilliz
If you are building a RAG application that serves millions of users, you should consider how to scale your system seamlessly and cost-efficiently. The Zilliz Serverless tier represents a significant innovation in the field of vector search, enabling you to rapidly scale to millions of tenants and billions of vectors, while fully leveraging the hot/cold characteristics across tenants to reduce data storage costs. It enables vector storage at costs comparable to S3 and facilitates vector search times in the hundreds of milliseconds for tens of millions of data points!
In this talk, we will delve into the implementation details, usage patterns, and performance metrics of Zilliz Serverless. We will discuss how it empowers AI-native applications to achieve rapid business growth by providing a cost-effective and scalable vector storage and search solution.
Amazon Redshift é um serviço gerenciado que lhe dá um Data Warehouse, pronto para usar. Você se preocupa com carregar dados e utilizá-lo. Os detalhes de infraestrutura, servidores, replicação, backup são administrados pela AWS.
Data Virtualization Reference Architectures: Correctly Architecting your Solu...Denodo
Correctly Architecting your Solutions for Analytical & Operational Uses reviews the two main types of use cases that can be solved with the Denodo Platform. Both high concurrency scenarios and big reporting use cases are discussed in this presentation in a comparative way, explaining the different approaches that you must take to be successful in any situation.
This presentation is part of the Fast Data Strategy Conference, and you can watch the video here goo.gl/wdZgpo.
Still All on One Server: Perforce at Scale Perforce
Google runs the busiest single Perforce server on the planet, and one of the largest repositories in any source control system. This session will address server performance and other issues of scale, as well as where Google is in general, how it got there and how it continues to stay ahead of its users.
Elastic storage in the cloud session 5224 final v2BradDesAulniers2
Learn about the IBM Spectrum Scale offering (formerly GPFS) and how it can create an elastic storage solution in the cloud. Whether you're storing gigabytes or petabytes, Spectrum Scale can provide you with a high-performance storage solution.
Presented at IBM InterConnect 2015
Gruter TECHDAY 2014 Realtime Processing in TelcoGruter
Big Telco, Bigger real-time demands: Real-time processing in Telco
- Presented by Jung-ryong Lee, engineer manager at SK Telecom at Gruter TECHDAY 2014 Oct.29 Seoul, Korea
This presentation talks about the available (as per April 2013) index related techniques with IBM Informix.
It includes indexing techniques available with IBM Informix 12.1
See all iiug presentations available on http://www.iiug.com / member area
Slides: Start Small, Grow Big with a Unified Scale-Out InfrastructureNetApp
Slides from the on-demand webcast (showcasing customer Cirrity). Learn how NetApp® clustered Data ONTAP® 8.2 can help you scale multiple workloads on a single unified storage platform with support for multiple protocols such as SMB 3.0 and pNFS, and scale the performance of all of your applications, whether on SAN or NAS infrastructure.
Takashi Kobayashi and Hironori Washizaki, "SWEBOK Guide and Future of SE Education," First International Symposium on the Future of Software Engineering (FUSE), June 3-6, 2024, Okinawa, Japan
Zoom is a comprehensive platform designed to connect individuals and teams efficiently. With its user-friendly interface and powerful features, Zoom has become a go-to solution for virtual communication and collaboration. It offers a range of tools, including virtual meetings, team chat, VoIP phone systems, online whiteboards, and AI companions, to streamline workflows and enhance productivity.
What is Augmented Reality Image Trackingpavan998932
Augmented Reality (AR) Image Tracking is a technology that enables AR applications to recognize and track images in the real world, overlaying digital content onto them. This enhances the user's interaction with their environment by providing additional information and interactive elements directly tied to physical images.
GraphSummit Paris - The art of the possible with Graph TechnologyNeo4j
Sudhir Hasbe, Chief Product Officer, Neo4j
Join us as we explore breakthrough innovations enabled by interconnected data and AI. Discover firsthand how organizations use relationships in data to uncover contextual insights and solve our most pressing challenges – from optimizing supply chains, detecting fraud, and improving customer experiences to accelerating drug discoveries.
Artificia Intellicence and XPath Extension FunctionsOctavian Nadolu
The purpose of this presentation is to provide an overview of how you can use AI from XSLT, XQuery, Schematron, or XML Refactoring operations, the potential benefits of using AI, and some of the challenges we face.
Essentials of Automations: The Art of Triggers and Actions in FMESafe Software
In this second installment of our Essentials of Automations webinar series, we’ll explore the landscape of triggers and actions, guiding you through the nuances of authoring and adapting workspaces for seamless automations. Gain an understanding of the full spectrum of triggers and actions available in FME, empowering you to enhance your workspaces for efficient automation.
We’ll kick things off by showcasing the most commonly used event-based triggers, introducing you to various automation workflows like manual triggers, schedules, directory watchers, and more. Plus, see how these elements play out in real scenarios.
Whether you’re tweaking your current setup or building from the ground up, this session will arm you with the tools and insights needed to transform your FME usage into a powerhouse of productivity. Join us to discover effective strategies that simplify complex processes, enhancing your productivity and transforming your data management practices with FME. Let’s turn complexity into clarity and make your workspaces work wonders!
Graspan: A Big Data System for Big Code AnalysisAftab Hussain
We built a disk-based parallel graph system, Graspan, that uses a novel edge-pair centric computation model to compute dynamic transitive closures on very large program graphs.
We implement context-sensitive pointer/alias and dataflow analyses on Graspan. An evaluation of these analyses on large codebases such as Linux shows that their Graspan implementations scale to millions of lines of code and are much simpler than their original implementations.
These analyses were used to augment the existing checkers; these augmented checkers found 132 new NULL pointer bugs and 1308 unnecessary NULL tests in Linux 4.4.0-rc5, PostgreSQL 8.3.9, and Apache httpd 2.2.18.
- Accepted in ASPLOS ‘17, Xi’an, China.
- Featured in the tutorial, Systemized Program Analyses: A Big Data Perspective on Static Analysis Scalability, ASPLOS ‘17.
- Invited for presentation at SoCal PLS ‘16.
- Invited for poster presentation at PLDI SRC ‘16.
AI Fusion Buddy Review: Brand New, Groundbreaking Gemini-Powered AI AppGoogle
AI Fusion Buddy Review: Brand New, Groundbreaking Gemini-Powered AI App
👉👉 Click Here To Get More Info 👇👇
https://sumonreview.com/ai-fusion-buddy-review
AI Fusion Buddy Review: Key Features
✅Create Stunning AI App Suite Fully Powered By Google's Latest AI technology, Gemini
✅Use Gemini to Build high-converting Converting Sales Video Scripts, ad copies, Trending Articles, blogs, etc.100% unique!
✅Create Ultra-HD graphics with a single keyword or phrase that commands 10x eyeballs!
✅Fully automated AI articles bulk generation!
✅Auto-post or schedule stunning AI content across all your accounts at once—WordPress, Facebook, LinkedIn, Blogger, and more.
✅With one keyword or URL, generate complete websites, landing pages, and more…
✅Automatically create & sell AI content, graphics, websites, landing pages, & all that gets you paid non-stop 24*7.
✅Pre-built High-Converting 100+ website Templates and 2000+ graphic templates logos, banners, and thumbnail images in Trending Niches.
✅Say goodbye to wasting time logging into multiple Chat GPT & AI Apps once & for all!
✅Save over $5000 per year and kick out dependency on third parties completely!
✅Brand New App: Not available anywhere else!
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✅Commercial License included!
See My Other Reviews Article:
(1) AI Genie Review: https://sumonreview.com/ai-genie-review
(2) SocioWave Review: https://sumonreview.com/sociowave-review
(3) AI Partner & Profit Review: https://sumonreview.com/ai-partner-profit-review
(4) AI Ebook Suite Review: https://sumonreview.com/ai-ebook-suite-review
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Software Engineering, Software Consulting, Tech Lead, Spring Boot, Spring Cloud, Spring Core, Spring JDBC, Spring Transaction, Spring MVC, OpenShift Cloud Platform, Kafka, REST, SOAP, LLD & HLD.
Atelier - Innover avec l’IA Générative et les graphes de connaissancesNeo4j
Atelier - Innover avec l’IA Générative et les graphes de connaissances
Allez au-delà du battage médiatique autour de l’IA et découvrez des techniques pratiques pour utiliser l’IA de manière responsable à travers les données de votre organisation. Explorez comment utiliser les graphes de connaissances pour augmenter la précision, la transparence et la capacité d’explication dans les systèmes d’IA générative. Vous partirez avec une expérience pratique combinant les relations entre les données et les LLM pour apporter du contexte spécifique à votre domaine et améliorer votre raisonnement.
Amenez votre ordinateur portable et nous vous guiderons sur la mise en place de votre propre pile d’IA générative, en vous fournissant des exemples pratiques et codés pour démarrer en quelques minutes.
Do you want Software for your Business? Visit Deuglo
Deuglo has top Software Developers in India. They are experts in software development and help design and create custom Software solutions.
Deuglo follows seven steps methods for delivering their services to their customers. They called it the Software development life cycle process (SDLC).
Requirement — Collecting the Requirements is the first Phase in the SSLC process.
Feasibility Study — after completing the requirement process they move to the design phase.
Design — in this phase, they start designing the software.
Coding — when designing is completed, the developers start coding for the software.
Testing — in this phase when the coding of the software is done the testing team will start testing.
Installation — after completion of testing, the application opens to the live server and launches!
Maintenance — after completing the software development, customers start using the software.
Introducing Crescat - Event Management Software for Venues, Festivals and Eve...Crescat
Crescat is industry-trusted event management software, built by event professionals for event professionals. Founded in 2017, we have three key products tailored for the live event industry.
Crescat Event for concert promoters and event agencies. Crescat Venue for music venues, conference centers, wedding venues, concert halls and more. And Crescat Festival for festivals, conferences and complex events.
With a wide range of popular features such as event scheduling, shift management, volunteer and crew coordination, artist booking and much more, Crescat is designed for customisation and ease-of-use.
Over 125,000 events have been planned in Crescat and with hundreds of customers of all shapes and sizes, from boutique event agencies through to international concert promoters, Crescat is rigged for success. What's more, we highly value feedback from our users and we are constantly improving our software with updates, new features and improvements.
If you plan events, run a venue or produce festivals and you're looking for ways to make your life easier, then we have a solution for you. Try our software for free or schedule a no-obligation demo with one of our product specialists today at crescat.io
Top Features to Include in Your Winzo Clone App for Business Growth (4).pptxrickgrimesss22
Discover the essential features to incorporate in your Winzo clone app to boost business growth, enhance user engagement, and drive revenue. Learn how to create a compelling gaming experience that stands out in the competitive market.
Code reviews are vital for ensuring good code quality. They serve as one of our last lines of defense against bugs and subpar code reaching production.
Yet, they often turn into annoying tasks riddled with frustration, hostility, unclear feedback and lack of standards. How can we improve this crucial process?
In this session we will cover:
- The Art of Effective Code Reviews
- Streamlining the Review Process
- Elevating Reviews with Automated Tools
By the end of this presentation, you'll have the knowledge on how to organize and improve your code review proces
2. Overview
2
• The concept of InfiniFlux: the ultra high-speed database that stores and processes time series data.
• InfiniFlux has very different characteristics compared to the conventional DBMS such as Oracle and DB2 in
order to provide high-speed processing.
• Importance of understanding: the characteristics and architecture for time series log data.
• Technical characteristics: analyzing data using SQL and storing hundreds of thousands of records in a
second in real-time.
• Describe the differences between InfiniFlux and the conventional technology, and provide detailed
explanation about every item.
Document Overview
3. Comparison Chart
3
Characteristics InfiniFlux DB RDBMS
Transaction
Provide implicit transaction based on
Snapshot
Provide explicit transaction based on log file
INSERT speed 300,000 ~ 3,000,000 in a second less than 10,000 in a second
SELECT performance
Optimized for query over search & statistical
analysis
Optimized for OLTP
Characteristics of Data Time series log data Non-log transaction data
Updatable data Append Only (Write Once, Read Many) Updatable
DELETE operation Delete the oldest data Delete random data
Real-time index Real-time bitmap index Not real-time B+Tree
Data compression
High performance data compression in real-
time
Not support data compression
Real-time search for text Supported (real-time inverted index)
Not supported
(Even if supported, not in real-time)
Support time series data Support data partitioning by sharding
Support data partitioning based on general
timestamp column
Gap between data and index Occurrence of momentary gap Gap not occurred
4. Support Transaction
4
RDBMS
• Provide explicit transaction for all the data operation
• Transaction: set of operations that satisfy ACID properties
• Atomicity
• Consistency
• Isolation
• Durability
• Savepoint, Commit, and Rollback
InfiniFlux
• Not provide explicit transaction
• No transaction for data operation (input)
• Provide implicit transaction over internal meta data
• Table structure, index structure, and data file structure
Reasons for not
supporting transaction
• No need to store data based on transaction since it is time series data
• Fast storage and processing are much more valuable than transaction
• No need to pay costs and conduct complex operations for transactions
5. Input Performance
5
RDBMS
• Difficult to input data more than 5,000 per second
• High costs of logging for transaction. As a result, increase I/O costs.
• High costs of index update. Thus, B+Tree is suitable for data search.
• To maintain the consistency, all the operations of index update for a record is conducted in
consecutive order.
• Degrading system performance as the volume of index is greater than data
InfiniFlux
• Able to input hundreds of thousands data per second
• Efficient to create index through real-time bitmap index
• Costs for logging not required
• Parallel index can be created using multi-threads
• Reduce the amount of I/O data by real-time compression. As a result, improve overall system
performance.
• Able to improve performance greatly by creating tablespace based on multiple disks
6. Query Performance
6
RDBMS
• Row-oriented database has advantage over online transaction processing (OLTP).
• High query performance on high cardinality
• Reason: small search range brings high performance like B+Tree
• Mainly operating based on B+Tree, and select the most efficient index and use it.
• Efficient to search in a small range even with large number of data
• Slow query performance for statistical analysis
InfiniFlux
• Column-oriented database has advantage over online analytical processing (OLAP).
• High query performance on low cardinality
• Most of time series log data are low cardinality since it has high level of duplication.
• Most of them are bitmap indices, and it is efficient since more than two indices can be used at
the same time.
• Fast statistical query against massive data (hundreds of millions of data)
• Relatively slow on search for a certain record of OLTP from the whole DB
• In this case, global index needs to be created.
7. Characteristics of Data
7
RDBMS
• Optimized for storing data through transactions
• Financial information and individual identification information for banking transactions
• Important data that should be safely stored in conventional database such as Oracle.
• RDMBS is not related with the flow of time and can be updated or deleted.
InfiniFlux
• Target data are time series log data.
• Hundreds of thousands of data were created in a second.
• Update operation is not required and shows high level of data duplication.
• Target data are log files or similar data that were previously stored as text files.
• Constantly describe the status of a certain target over time.
8. Updatable Data
8
RDBMS
• Updatable model
• Data can be updated or modified anytime.
• Able to delete an arbitrary record at a random moment.
• Create a database that can access and modify all the data with ease.
InfiniFlux
• Write Once Read Many (WORM) model
• Since it is time series log data, data cannot be modified once it is stored.
• Read-oriented, and not support UPDATE operation at all
• Deleting data?
• Cannot delete a record at a certain time
• Able to delete the oldest record from the database in sequential order
* InfiniFlux provides delete feature in order to maintain a certain level of disk usage of
embedded device.
9. Index Technology
9
RDBMS
• In general, it uses B+Tree
• It is global index and all the record information are stored in the index.
• Expensive costs of logging and recovery operations for supporting transactions
* Due to the reasons mentioned above, it process only thousands data per second.
• Disk usage is increasing rapidly compared to the number of indices because values of raw data are
stored in the index.
• Not provide compression feature due to performance issue
InfiniFlux
• Support real-time bitmap index
• Local index structure of partition unit
• Composed with various indices over all the records
• Able to create index quickly since transaction support and logging operations are not required.
• Able to create millions of indices per second
• Costs of creating index will increase little by little even though the amount of data increased.
• Minimize the disk usage by supporting compression algorithms
• OLTP query is relatively slow when the amount of data increases indefinitely.
• Support semi-global index (4th quarter 2015)
• Able to provide high performance on OLTP query
• Able to provide high performance on compression and statistical query
10. Compression Technology
10
RDBMS
• No data compression issues.
* The reason for this is that, in general, the number of target records are maintained at a certain number.
In this environment, disk usage is not that big issue.
• The basic idea is that increase search performance at the expense of disk space.
• In many cases, clients are not interested in data compression itself.
• Even if compression is available, challenges below will be presented;
• Increase the amount of data usage due to the structure in data duplication of B+Tree
• Difficult to use the duplication property of row-oriented database
InfiniFlux
• Amount of disk usage is very important since it is assumed that the environment where large amount of
data is created.
• Conduct real-time compression twice and thus able to use disk space efficiently
• Logical compression
• Compress column-based duplicated data in a dictionary structure
• Duplicated bit strings over bitmap index at high compression logically
• Physical compression
• Real-time physical compression of partition pages when storing disks
• Disk usages show slow growth pattern not linear growth as the number of index increases.
11. Full Text Search
11
RDBMS
• In general, database do not support text search
• Provide alternative methods such as LIKE statement for the search.
• Partial search over the column were conducted through LIKE ‘%pattern%’.
In this case, full scan over all the records is operated, and resulted in slow performance.
• Impossible to use RDBMS for full text search
InfiniFlux
• Provide keyword index, and full text search is available for a certain VARCHAR column.
• “SEARCH” can be used for searching instead of “LIKE”.
• SELECT id FROM user_table WHERE address SEARCH ‘Texas’;
• Able to search text in UTF-8 format.
• Different processing methods are applied to English characters and 2 byte character
(Chinese/Japanese/Korean).
• English
• Separate words with special characters (e.g. “boy” and “boys” are different)
• CJK (Chinese, Japanese, and Korean)
• Using 2-gram method to search
• The word ‘강남구’ will be converted into ‘강남’ & ‘남구’ and operate
12. Concurrency Level
12
RDBMS
• Generally provide “Record Level Locking”
• Two options based on how to read records while updating
• Consistency Read
• Allow to read previous value of the record that is being updated.
• No confliction of lock No waiting time
• Non Consistency Read (Record locking conflict occurred)
• Allow to wait and decide to commit/rollback on the record that is being updated.
• Conflicts arise while locking Possible to wait indefinitely depends on the previous
transaction.
InfiniFlux
• Provide Lockless structure
• No locking conflict due to no update
• No lock mechanism against the records, thus, maximize the performance over data search and
analysis.
13. Time Series Data Analysis
13
Sliding
Memory
Window
Memory
Window
Memory
Window
File -1 File -2 File -3 File -4 File -5 File -6 File -7
Data
Insert
Current time Old time
RDBMS
• Time series data exist in the form of time data type (date, time, timestamp, and interval).
• It doesn’t recognize the data as time series data, rather treat it with other general data (number,
and varchar etc.).
• Separate devices for analyzing data based on the time base is not provided due to the reasons
above.
• Slow performance when analyzing data with time index.
InfiniFlux
• When data were entered, it creates physical partitions in sequential order.
• Able to access records in a certain time range directly due to the sequential order.
• When data were entered, the timestamp for the record will be stored in nano unit automatically
(_arrival_time as a hidden column).
• Able to operate data of the time base freely based on the hidden column.
• Select data from table where DURATION 10 minute (output data within 10 minutes)
14. Backup and Restore
14
Backup Restore
RDBMS
Backup data in a certain table or database area
externally
• Online backup is the basic strategy to store data
• Separately provide incremental backup in order to
reduce the time and costs of backup
The process of returning the data to the original database
• Impossible to use backup files and must go through
restore process
• Backup big files take a long time to restore
• Able to backup data based on a certain time, but
complicate to change the starting point.
InfiniFlux
• Backup the whole database based on a certain time
• Not able to backup data based on a certain table or
record
• Backup in a file or directory format multiple files
• Restore the whole backup files
• Overwrite the existing database
15. Backup and Mount
15
What is mount?
• Rather than storing backup database file, it loads and searches the contents of database after
loading only meta data.
• Similar to the concept of the disk mount of UNIX
• Able to access backup data directly in a certain time in a fast and efficient way.
RDBMS • Not supported
InfiniFlux
• MOUNT
• Mount backup data on 31st December 2014
e.g.) MOUNT DATABASE ‘/home/data/2014-12-31’
• UNMOUNT
• Unmount the mounted data
e.g.) UNMOUNT DATABASE ‘/home/data/2014-12-31’
16. The World's Fastest
Time Series DBMS
for IoT and Big Data
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