This document discusses different high availability strategies for MariaDB databases. It covers asynchronous and semi-synchronous replication, which provide redundancy and failover capabilities but can have data loss risks. Synchronous replication with Galera Cluster is also described, which guarantees no data loss but has higher latency. Other topics include terminology, data redundancy approaches, and how features can be combined for resilient configurations.
Hhm 3470 mq v8 and more recent new things for z osPete Siddall
IBM MQ for z/OS makes use of many system features and facilities to provide a very high level of availability and performance for your messages. Come along to this session to learn the detail behind all the new features and enhancements in the latest release of IBM MQ for z/OS.
Detailed presentation on how queries and updates behave on updateable secondary. A few nuggets of best practices to make sure your HDR configuration works well.
Hhm 3479 mq clustering and shared queues for high availabilityPete Siddall
we review clustering and shared queue technologies, their differences and synergies, as a foundation for building a highly available messaging service with resilience during both planned and unplanned outages of z Systems components.
Training Slides: Basics 102: Introduction to Tungsten ClusteringContinuent
This 30 minutes training session provides an introduction to how Tungsten Clustering for MySQL / MariaDB / Percona Server works, its basic principles, understanding Tungsten Clustering topologies, failover, rolling maintenance and related tools.
AGENDA
- Review the key benefits offered by Tungsten Clustering
- Examine the Tungsten Clustering architecture
- Tungsten Cluster Topologies for MySQL High Availability and Disaster Recovery
- Composite vs Multi-Site/Multi-Master
- Review automatic and manual failover
- Explore the concepts of a rolling maintenance procedure
- Study key resources to monitor and manage the cluster
Load Balancing In Distributed ComputingRicha Singh
Load Balancing In Distributed Computing
The goal of the load balancing algorithms is to maintain the load to each processing element such that all the processing elements become neither overloaded nor idle that means each processing element ideally has equal load at any moment of time during execution to obtain the maximum performance (minimum execution time) of the system
Hhm 3470 mq v8 and more recent new things for z osPete Siddall
IBM MQ for z/OS makes use of many system features and facilities to provide a very high level of availability and performance for your messages. Come along to this session to learn the detail behind all the new features and enhancements in the latest release of IBM MQ for z/OS.
Detailed presentation on how queries and updates behave on updateable secondary. A few nuggets of best practices to make sure your HDR configuration works well.
Hhm 3479 mq clustering and shared queues for high availabilityPete Siddall
we review clustering and shared queue technologies, their differences and synergies, as a foundation for building a highly available messaging service with resilience during both planned and unplanned outages of z Systems components.
Training Slides: Basics 102: Introduction to Tungsten ClusteringContinuent
This 30 minutes training session provides an introduction to how Tungsten Clustering for MySQL / MariaDB / Percona Server works, its basic principles, understanding Tungsten Clustering topologies, failover, rolling maintenance and related tools.
AGENDA
- Review the key benefits offered by Tungsten Clustering
- Examine the Tungsten Clustering architecture
- Tungsten Cluster Topologies for MySQL High Availability and Disaster Recovery
- Composite vs Multi-Site/Multi-Master
- Review automatic and manual failover
- Explore the concepts of a rolling maintenance procedure
- Study key resources to monitor and manage the cluster
Load Balancing In Distributed ComputingRicha Singh
Load Balancing In Distributed Computing
The goal of the load balancing algorithms is to maintain the load to each processing element such that all the processing elements become neither overloaded nor idle that means each processing element ideally has equal load at any moment of time during execution to obtain the maximum performance (minimum execution time) of the system
Hhm 3474 mq messaging technologies and support for high availability and acti...Pete Siddall
Active-Active is the target messaging model for the modern data center. But its successful adoption must encompass not only the mainframe, but also heterogeneous and peripherally distributed platforms, which makes it much more complex to implement. Data synchronization is at the heart of the various Active-Active technologies, and the right messaging technology must therefore be chosen for its implementation. This session gives an overview of Active-Active technologies on both z Systems and distributed platforms. It highlights how Active-Active provides the benefits of both high availability and workload balancing. We will also discuss customer cases on how to implement messaging-based Active-Active.
Apache Kafka Bay Area Sep Meetup - 24/7 Customer, Inc.Suneet Grover
Journey from Kafka 0.7 to 0.10.0.1 and recipes for resilient cross-DC data pipeline. This is about our journey with Kafka starting from Kafka 0.7 through 0.8, 0.8.2.2 and finally to Kafka 0.10. We presented our learnings and the challenges we had faced during the upgrades, in managing the Kafka clusters and in operating the cross-DC mirror makers. This has a set of configurations that have worked for us and the transparency and monitoring that have helped us to build a highly reliable and resilient real time data pipeline.
Tungsten Connector / Proxy is truly the secret sauce for the Tungsten Clustering solution. Watch this webinar to learn how the Tungsten Connector enables zero-downtime MySQL maintenance via the manual switch operation, and gain an understanding of the various configuration options for doing local reads in remote composite clusters.
AGENDA
- Review the cluster architecture
- Understand the role of the Connector
- Describe Connector deployment best practices (app, dedicated with lb, db with lb)
- Explore zero-downtime MySQL maintenance using the manual role switch procedure
- Learn about Connector routing patterns inside a composite cluster
- Illustrate a manual site switch
- Explain read affinity and the vast performance improvement of local reads
- Examine Connector multi-cluster support
slides are about load balancing as a concept and implementation of load balancing on computer technical level
slides show the server load balancing
different architectures , algorithms and examples
Continuent Tungsten - Scalable Saa S Data Managementguest2e11e8
The key needs of SaaS vendors include:
i) managing multi-tenant architectures with shared DBMS, ii) maintaining customer SLAs for uptime and performance and iii) optimized, efficient operations.
The key benefits Continuent Tungsten offers SaaS vendors are:
i) high availability and protection from data loss, ii) simple, efficient cluster management and iii) enable complex database topologies.
Tungsten offers high-availability, database cluster management and management of complex topologies for multi-tenant architectures.
Tungsten high availability and data protection features include maintaining live copies with data consistency checking and tightly coupled backup/restore integration with cluster management tools.
Tungsten cluster management allows SaaS vendors to migrate customers and perform system upgrades without downtime, thus enabling these maintenance operations during normal business hours.
Tungsten also enables complex replication topologies, including data filtering and data archiving strategies, maintaining extra data copies for data-marts, routing different customers to different DBMS copies, and providing cross-site multi-master replication.
Building a Highly available messaging hub using the IBM MQ ApplianceAnthony Beardsmore
The MQ Appliance includes two key facilities for maintaining the availability of your messaging infrastructure across expected and unexpected outages. This session looks in depth at the HA and DR capabilities of the MQ Appliance and application considerations when using them.
Replication in computing involves sharing information so as to ensure consistency between redundant resources, such as software or hardware components, to improve reliability, fault-tolerance, or accessibility.
IBM IMPACT 2014 AMC-1866 Introduction to IBM Messaging CapabilitiesPeter Broadhurst
IBM Messaging provides market-leading capabilities for anywhere-to-anywhere integration across mobile, cloud, and enterprise platforms - from the simplest pair of applications requiring basic connectivity and data exchange, to the most complex business process management environments. Come to this session to understand the value and rationale of message/queuing and the IBM Messaging family of products; its key features and functions; and how it can be used to build a secure, flexible, and scalable messaging backbone for a business.
Hhm 3474 mq messaging technologies and support for high availability and acti...Pete Siddall
Active-Active is the target messaging model for the modern data center. But its successful adoption must encompass not only the mainframe, but also heterogeneous and peripherally distributed platforms, which makes it much more complex to implement. Data synchronization is at the heart of the various Active-Active technologies, and the right messaging technology must therefore be chosen for its implementation. This session gives an overview of Active-Active technologies on both z Systems and distributed platforms. It highlights how Active-Active provides the benefits of both high availability and workload balancing. We will also discuss customer cases on how to implement messaging-based Active-Active.
Apache Kafka Bay Area Sep Meetup - 24/7 Customer, Inc.Suneet Grover
Journey from Kafka 0.7 to 0.10.0.1 and recipes for resilient cross-DC data pipeline. This is about our journey with Kafka starting from Kafka 0.7 through 0.8, 0.8.2.2 and finally to Kafka 0.10. We presented our learnings and the challenges we had faced during the upgrades, in managing the Kafka clusters and in operating the cross-DC mirror makers. This has a set of configurations that have worked for us and the transparency and monitoring that have helped us to build a highly reliable and resilient real time data pipeline.
Tungsten Connector / Proxy is truly the secret sauce for the Tungsten Clustering solution. Watch this webinar to learn how the Tungsten Connector enables zero-downtime MySQL maintenance via the manual switch operation, and gain an understanding of the various configuration options for doing local reads in remote composite clusters.
AGENDA
- Review the cluster architecture
- Understand the role of the Connector
- Describe Connector deployment best practices (app, dedicated with lb, db with lb)
- Explore zero-downtime MySQL maintenance using the manual role switch procedure
- Learn about Connector routing patterns inside a composite cluster
- Illustrate a manual site switch
- Explain read affinity and the vast performance improvement of local reads
- Examine Connector multi-cluster support
slides are about load balancing as a concept and implementation of load balancing on computer technical level
slides show the server load balancing
different architectures , algorithms and examples
Continuent Tungsten - Scalable Saa S Data Managementguest2e11e8
The key needs of SaaS vendors include:
i) managing multi-tenant architectures with shared DBMS, ii) maintaining customer SLAs for uptime and performance and iii) optimized, efficient operations.
The key benefits Continuent Tungsten offers SaaS vendors are:
i) high availability and protection from data loss, ii) simple, efficient cluster management and iii) enable complex database topologies.
Tungsten offers high-availability, database cluster management and management of complex topologies for multi-tenant architectures.
Tungsten high availability and data protection features include maintaining live copies with data consistency checking and tightly coupled backup/restore integration with cluster management tools.
Tungsten cluster management allows SaaS vendors to migrate customers and perform system upgrades without downtime, thus enabling these maintenance operations during normal business hours.
Tungsten also enables complex replication topologies, including data filtering and data archiving strategies, maintaining extra data copies for data-marts, routing different customers to different DBMS copies, and providing cross-site multi-master replication.
Building a Highly available messaging hub using the IBM MQ ApplianceAnthony Beardsmore
The MQ Appliance includes two key facilities for maintaining the availability of your messaging infrastructure across expected and unexpected outages. This session looks in depth at the HA and DR capabilities of the MQ Appliance and application considerations when using them.
Replication in computing involves sharing information so as to ensure consistency between redundant resources, such as software or hardware components, to improve reliability, fault-tolerance, or accessibility.
IBM IMPACT 2014 AMC-1866 Introduction to IBM Messaging CapabilitiesPeter Broadhurst
IBM Messaging provides market-leading capabilities for anywhere-to-anywhere integration across mobile, cloud, and enterprise platforms - from the simplest pair of applications requiring basic connectivity and data exchange, to the most complex business process management environments. Come to this session to understand the value and rationale of message/queuing and the IBM Messaging family of products; its key features and functions; and how it can be used to build a secure, flexible, and scalable messaging backbone for a business.
Learn strategies to maintain your database's high availability even during peak use periods. MariaDB's Field CTO Max Mether offers best practices for high availability, disaster recovery and more.
Webinar Slides: MySQL HA/DR/Geo-Scale - High Noon #2: Galera ClusterContinuent
Galera Cluster vs. Continuent Tungsten Clusters
Building a Geo-Scale, Multi-Region and Highly Available MySQL Cloud Back-End
This second installment of our High Noon series of on-demand webinars is focused on Galera Cluster (including MariaDB Cluster & Percona XtraDB Cluster). It looks at some of the key characteristics of Galera Cluster and how it fares as a MySQL HA / DR / Geo-Scale solution, especially when compared to Continuent Tungsten Clustering.
Watch this webinar to learn how to do better MySQL HA / DR / Geo-Scale.
AGENDA
- Goals for the High Noon Webinar Series
- High Noon Series: Tungsten Clustering vs Others
- Galera Cluster (aka MariaDB Cluster & Percona XtraDB Cluster)
- Key Characteristics
- Certification-based Replication
- Galera Multi-Site Requirements
- Limitations Using Galera Cluster
- How to do better MySQL HA / DR / Geo-Scale?
- Galera Cluster vs Tungsten Clustering
- About Continuent & Its Solutions
PRESENTER
Matthew Lang - Customer Success Director – Americas, Continuent - has over 25 years of experience in database administration, database programming, and system architecture, including the creation of a database replication product that is still in use today. He has designed highly available, scaleable systems that have allowed startups to quickly become enterprise organizations, utilizing a variety of technologies including open source projects, virtualization and cloud.
we will discuss important topics related to multi-master setups:
* Practical considerations when using Galera in a multi-master setup
* Evaluating the characteristics of your database workload
* Preparing your application for multi-master
* Detecting and dealing with transaction conflicts
Presenation provides the practical aspects of migrating a database setup based on traditional asynchronous replication to multi-master Galera Cluster. We will discuss the benefits Galera provides and how traditional replication settings, architecture and practices can be converted to Galera Cluster. We will show the steps that are needed to perform the migration with limited or no downtime.
We will show the advantages of having a geo-distributed database cluster and how to create one using Galera Cluster for MySQL. We will also discuss the configuration and status variables that are involved and how to deal with typical situations on the WAN such as slow, untrusted or unreliable links, latency and packet loss. We will demonstrate a multi-region cluster on Amazon EC2 and perform some throughput and latency measurements in real-time (video http://galeracluster.com/videos/using-galera-replication-to-create-geo-distributed-clusters-on-the-wan-webinar-video-3/)
Hochverfügbarkeit mit MariaDB Enterprise
Presented by Ralf Gebhardt at the MariaDB Roadshow Germany: 4.7.2014 in Hamburg, 8.7.2014 in Berlin and 11.7.2014 in Frankfurt.
Using galera replication to create geo distributed clusters on the wanSakari Keskitalo
We will show the advantages of having a geo-distributed database cluster and how to create one using Galera Cluster for MySQL. We will also discuss the configuration and status variables that are involved and how to deal with typical situations on the WAN such as slow, untrusted or unreliable links, latency and packet loss. We will demonstrate a multi-region cluster on Amazon EC2 and perform some throughput and latency measurements in real-time.
Using galera replication to create geo distributed clusters on the wanSakari Keskitalo
We will show the advantages of having a geo-distributed database cluster and how to create one using Galera Cluster for MySQL. We will also discuss the configuration and status variables that are involved and how to deal with typical situations on the WAN such as slow, untrusted or unreliable links, latency and packet loss. We will demonstrate a multi-region cluster on Amazon EC2 and perform some throughput and latency measurements in real-time.
Maria DB Galera Cluster for High AvailabilityOSSCube
Want to understand how to set high availability solutions for MySQL using MariaDB Galera Cluster? Join this webinar, and learn from experts. During this webinar, you will also get guidance on how to implement MariaDB Galera Cluster.
Running MariaDB in multiple data centersMariaDB plc
MariaDB is often deployed in multiple data centers for high availability and/or disaster recovery. Tim Tadeo, Senior Sales Engineer, walks through real-world use cases and the topologies customers have created to leverage multiple data centers. He also discusses important considerations and how to address them, as well as more advanced options such as dedicated binlog servers for cross–data center replication.
Fine-tuning Group Replication for PerformanceVitor Oliveira
This presentation is an overview of Group Replication from the perspective of performance optimization. It shows the main moving parts, the available options and how they can be used to tune its behaviour, and also a few significant benchmark results.
Similar to Choosing the right high availability strategy (20)
SkySQL is the first and only database-as-a-service (DBaaS) to perform workload analysis with advanced deep learning models, identifying and classifying discrete workload patterns so DBAs can better understand database workloads, identify anomalies and predict changes.
In this session, we’ll explain the concepts behind workload analysis and show how it can be used in the real world (and with sample real-world data) to improve database performance and efficiency by identifying key metrics and changes to cyclical patterns.
SkySQL uses best-of-breed software, and when it comes to metrics and monitoring that means Prometheus and Grafana. SkySQL Monitor is built on both, and provides customers with interactive dashboards for both real-time and historic metrics monitoring. In addition, it meets the same high availability and security requirements as other SkySQL components, ensuring metrics are always available and always secure.
In this session, we’ll explain how SkySQL Monitor works, walk through its dashboards and show how to monitor key metrics for performance and replication.
Introducing the R2DBC async Java connectorMariaDB plc
Not too long ago, a reactive variant of the JDBC driver was released, known as Reactive Relational Database Connectivity (R2DBC for short). While R2DBC started as an experiment to enable integration of SQL databases into systems that use reactive programming models, it now specifies a full-fledged service-provider interface that can be used to retrieve data from a target data source.
In this session, we’ll take a look at the new MariaDB R2DBC connector and examine the advantages of fully reactive, non-blocking development with MariaDB. And, of course, we’ll dive in and get a first-hand look at what it’s like to use the new connector with some live coding!
The capabilities and features of MariaDB Platform continue to expand, resulting in larger and more sophisticated production deployments – and the need for better tools. To provide DBAs with comprehensive, consolidating tooling, we created MariaDB Enterprise Tools: an easy-to-use, modular command-line interface for interacting with any part of MariaDB Platform.
In this session, we will provide a preview of the MariaDB Enterprise Client, walk through current and planned modules and discuss future plans for MariaDB Enterprise Tools – including SkySQL modules and the ability to create custom modules.
Faster, better, stronger: The new InnoDBMariaDB plc
For MariaDB Enterprise Server 10.5, the default transactional storage engine, InnoDB, has been significantly rewritten to improve the performance of writes and backups. Next, we removed a number of parameters to reduce unnecessary complexity, not only in terms of configuration but of the code itself. And finally, we improved crash recovery thanks to better consistency checks and we reduced memory consumption and file I/O thanks to an all new log record format.
In this session, we’ll walk through all of the improvements to InnoDB, and dive deep into the implementation to explain how these improvements help everything from configuration and performance to reliability and recovery.
SkySQL implements a groundbreaking, state-of-the-art architecture based on Kubernetes and ServiceNow, and with a strong emphasis on cloud security – using compartmentalization and indirect access to secure and protect customer databases.
In this session, we’ll walk through the architecture of SkySQL and discuss how MariaDB leverages an advanced Kubernetes operator and powerful ServiceNow configuration/workflow management to deploy and manage databases on cloud infrastructure.
Designing for Privacy in Amazon Web ServicesKrzysztofKkol1
Data privacy is one of the most critical issues that businesses face. This presentation shares insights on the principles and best practices for ensuring the resilience and security of your workload.
Drawing on a real-life project from the HR industry, the various challenges will be demonstrated: data protection, self-healing, business continuity, security, and transparency of data processing. This systematized approach allowed to create a secure AWS cloud infrastructure that not only met strict compliance rules but also exceeded the client's expectations.
Quarkus Hidden and Forbidden ExtensionsMax Andersen
Quarkus has a vast extension ecosystem and is known for its subsonic and subatomic feature set. Some of these features are not as well known, and some extensions are less talked about, but that does not make them less interesting - quite the opposite.
Come join this talk to see some tips and tricks for using Quarkus and some of the lesser known features, extensions and development techniques.
Field Employee Tracking System| MiTrack App| Best Employee Tracking Solution|...informapgpstrackings
Keep tabs on your field staff effortlessly with Informap Technology Centre LLC. Real-time tracking, task assignment, and smart features for efficient management. Request a live demo today!
For more details, visit us : https://informapuae.com/field-staff-tracking/
Prosigns: Transforming Business with Tailored Technology SolutionsProsigns
Unlocking Business Potential: Tailored Technology Solutions by Prosigns
Discover how Prosigns, a leading technology solutions provider, partners with businesses to drive innovation and success. Our presentation showcases our comprehensive range of services, including custom software development, web and mobile app development, AI & ML solutions, blockchain integration, DevOps services, and Microsoft Dynamics 365 support.
Custom Software Development: Prosigns specializes in creating bespoke software solutions that cater to your unique business needs. Our team of experts works closely with you to understand your requirements and deliver tailor-made software that enhances efficiency and drives growth.
Web and Mobile App Development: From responsive websites to intuitive mobile applications, Prosigns develops cutting-edge solutions that engage users and deliver seamless experiences across devices.
AI & ML Solutions: Harnessing the power of Artificial Intelligence and Machine Learning, Prosigns provides smart solutions that automate processes, provide valuable insights, and drive informed decision-making.
Blockchain Integration: Prosigns offers comprehensive blockchain solutions, including development, integration, and consulting services, enabling businesses to leverage blockchain technology for enhanced security, transparency, and efficiency.
DevOps Services: Prosigns' DevOps services streamline development and operations processes, ensuring faster and more reliable software delivery through automation and continuous integration.
Microsoft Dynamics 365 Support: Prosigns provides comprehensive support and maintenance services for Microsoft Dynamics 365, ensuring your system is always up-to-date, secure, and running smoothly.
Learn how our collaborative approach and dedication to excellence help businesses achieve their goals and stay ahead in today's digital landscape. From concept to deployment, Prosigns is your trusted partner for transforming ideas into reality and unlocking the full potential of your business.
Join us on a journey of innovation and growth. Let's partner for success with Prosigns.
Modern design is crucial in today's digital environment, and this is especially true for SharePoint intranets. The design of these digital hubs is critical to user engagement and productivity enhancement. They are the cornerstone of internal collaboration and interaction within enterprises.
Developing Distributed High-performance Computing Capabilities of an Open Sci...Globus
COVID-19 had an unprecedented impact on scientific collaboration. The pandemic and its broad response from the scientific community has forged new relationships among public health practitioners, mathematical modelers, and scientific computing specialists, while revealing critical gaps in exploiting advanced computing systems to support urgent decision making. Informed by our team’s work in applying high-performance computing in support of public health decision makers during the COVID-19 pandemic, we present how Globus technologies are enabling the development of an open science platform for robust epidemic analysis, with the goal of collaborative, secure, distributed, on-demand, and fast time-to-solution analyses to support public health.
Large Language Models and the End of ProgrammingMatt Welsh
Talk by Matt Welsh at Craft Conference 2024 on the impact that Large Language Models will have on the future of software development. In this talk, I discuss the ways in which LLMs will impact the software industry, from replacing human software developers with AI, to replacing conventional software with models that perform reasoning, computation, and problem-solving.
In software engineering, the right architecture is essential for robust, scalable platforms. Wix has undergone a pivotal shift from event sourcing to a CRUD-based model for its microservices. This talk will chart the course of this pivotal journey.
Event sourcing, which records state changes as immutable events, provided robust auditing and "time travel" debugging for Wix Stores' microservices. Despite its benefits, the complexity it introduced in state management slowed development. Wix responded by adopting a simpler, unified CRUD model. This talk will explore the challenges of event sourcing and the advantages of Wix's new "CRUD on steroids" approach, which streamlines API integration and domain event management while preserving data integrity and system resilience.
Participants will gain valuable insights into Wix's strategies for ensuring atomicity in database updates and event production, as well as caching, materialization, and performance optimization techniques within a distributed system.
Join us to discover how Wix has mastered the art of balancing simplicity and extensibility, and learn how the re-adoption of the modest CRUD has turbocharged their development velocity, resilience, and scalability in a high-growth environment.
Your Digital Assistant.
Making complex approach simple. Straightforward process saves time. No more waiting to connect with people that matter to you. Safety first is not a cliché - Securely protect information in cloud storage to prevent any third party from accessing data.
Would you rather make your visitors feel burdened by making them wait? Or choose VizMan for a stress-free experience? VizMan is an automated visitor management system that works for any industries not limited to factories, societies, government institutes, and warehouses. A new age contactless way of logging information of visitors, employees, packages, and vehicles. VizMan is a digital logbook so it deters unnecessary use of paper or space since there is no requirement of bundles of registers that is left to collect dust in a corner of a room. Visitor’s essential details, helps in scheduling meetings for visitors and employees, and assists in supervising the attendance of the employees. With VizMan, visitors don’t need to wait for hours in long queues. VizMan handles visitors with the value they deserve because we know time is important to you.
Feasible Features
One Subscription, Four Modules – Admin, Employee, Receptionist, and Gatekeeper ensures confidentiality and prevents data from being manipulated
User Friendly – can be easily used on Android, iOS, and Web Interface
Multiple Accessibility – Log in through any device from any place at any time
One app for all industries – a Visitor Management System that works for any organisation.
Stress-free Sign-up
Visitor is registered and checked-in by the Receptionist
Host gets a notification, where they opt to Approve the meeting
Host notifies the Receptionist of the end of the meeting
Visitor is checked-out by the Receptionist
Host enters notes and remarks of the meeting
Customizable Components
Scheduling Meetings – Host can invite visitors for meetings and also approve, reject and reschedule meetings
Single/Bulk invites – Invitations can be sent individually to a visitor or collectively to many visitors
VIP Visitors – Additional security of data for VIP visitors to avoid misuse of information
Courier Management – Keeps a check on deliveries like commodities being delivered in and out of establishments
Alerts & Notifications – Get notified on SMS, email, and application
Parking Management – Manage availability of parking space
Individual log-in – Every user has their own log-in id
Visitor/Meeting Analytics – Evaluate notes and remarks of the meeting stored in the system
Visitor Management System is a secure and user friendly database manager that records, filters, tracks the visitors to your organization.
"Secure Your Premises with VizMan (VMS) – Get It Now"
Exploring Innovations in Data Repository Solutions - Insights from the U.S. G...Globus
The U.S. Geological Survey (USGS) has made substantial investments in meeting evolving scientific, technical, and policy driven demands on storing, managing, and delivering data. As these demands continue to grow in complexity and scale, the USGS must continue to explore innovative solutions to improve its management, curation, sharing, delivering, and preservation approaches for large-scale research data. Supporting these needs, the USGS has partnered with the University of Chicago-Globus to research and develop advanced repository components and workflows leveraging its current investment in Globus. The primary outcome of this partnership includes the development of a prototype enterprise repository, driven by USGS Data Release requirements, through exploration and implementation of the entire suite of the Globus platform offerings, including Globus Flow, Globus Auth, Globus Transfer, and Globus Search. This presentation will provide insights into this research partnership, introduce the unique requirements and challenges being addressed and provide relevant project progress.
Listen to the keynote address and hear about the latest developments from Rachana Ananthakrishnan and Ian Foster who review the updates to the Globus Platform and Service, and the relevance of Globus to the scientific community as an automation platform to accelerate scientific discovery.
Climate Science Flows: Enabling Petabyte-Scale Climate Analysis with the Eart...Globus
The Earth System Grid Federation (ESGF) is a global network of data servers that archives and distributes the planet’s largest collection of Earth system model output for thousands of climate and environmental scientists worldwide. Many of these petabyte-scale data archives are located in proximity to large high-performance computing (HPC) or cloud computing resources, but the primary workflow for data users consists of transferring data, and applying computations on a different system. As a part of the ESGF 2.0 US project (funded by the United States Department of Energy Office of Science), we developed pre-defined data workflows, which can be run on-demand, capable of applying many data reduction and data analysis to the large ESGF data archives, transferring only the resultant analysis (ex. visualizations, smaller data files). In this talk, we will showcase a few of these workflows, highlighting how Globus Flows can be used for petabyte-scale climate analysis.
Paketo Buildpacks : la meilleure façon de construire des images OCI? DevopsDa...Anthony Dahanne
Les Buildpacks existent depuis plus de 10 ans ! D’abord, ils étaient utilisés pour détecter et construire une application avant de la déployer sur certains PaaS. Ensuite, nous avons pu créer des images Docker (OCI) avec leur dernière génération, les Cloud Native Buildpacks (CNCF en incubation). Sont-ils une bonne alternative au Dockerfile ? Que sont les buildpacks Paketo ? Quelles communautés les soutiennent et comment ?
Venez le découvrir lors de cette session ignite
Into the Box Keynote Day 2: Unveiling amazing updates and announcements for modern CFML developers! Get ready for exciting releases and updates on Ortus tools and products. Stay tuned for cutting-edge innovations designed to boost your productivity.
Software Engineering, Software Consulting, Tech Lead.
Spring Boot, Spring Cloud, Spring Core, Spring JDBC, Spring Security,
Spring Transaction, Spring MVC,
Log4j, REST/SOAP WEB-SERVICES.
top nidhi software solution freedownloadvrstrong314
This presentation emphasizes the importance of data security and legal compliance for Nidhi companies in India. It highlights how online Nidhi software solutions, like Vector Nidhi Software, offer advanced features tailored to these needs. Key aspects include encryption, access controls, and audit trails to ensure data security. The software complies with regulatory guidelines from the MCA and RBI and adheres to Nidhi Rules, 2014. With customizable, user-friendly interfaces and real-time features, these Nidhi software solutions enhance efficiency, support growth, and provide exceptional member services. The presentation concludes with contact information for further inquiries.
Why React Native as a Strategic Advantage for Startup Innovation.pdfayushiqss
Do you know that React Native is being increasingly adopted by startups as well as big companies in the mobile app development industry? Big names like Facebook, Instagram, and Pinterest have already integrated this robust open-source framework.
In fact, according to a report by Statista, the number of React Native developers has been steadily increasing over the years, reaching an estimated 1.9 million by the end of 2024. This means that the demand for this framework in the job market has been growing making it a valuable skill.
But what makes React Native so popular for mobile application development? It offers excellent cross-platform capabilities among other benefits. This way, with React Native, developers can write code once and run it on both iOS and Android devices thus saving time and resources leading to shorter development cycles hence faster time-to-market for your app.
Let’s take the example of a startup, which wanted to release their app on both iOS and Android at once. Through the use of React Native they managed to create an app and bring it into the market within a very short period. This helped them gain an advantage over their competitors because they had access to a large user base who were able to generate revenue quickly for them.
3. Approach to HA
3.7 days / year
Backup /
Restore
1
< 99.9%
52.6 min / year
Replication /
Automatic failover
3
~ 99.99%
8.8hs / year
Simple
replication /
manual
failover
2
~ 99.9%
5.3 min / year
Galera
Cluster
~ 99.999%
4 5
Other
Strategies for High Availability
4. An average of 80 percent of mission-critical application service
downtime is directly caused by people or process failures. The
other 20 percent is caused by technology failure, environmental
failure or a disaster
Gartner Research
5. High Availability Background
• High Availability isn’t always equal to long Uptime
– A system is “up” but it might not be accessible
– A system that is “down” just once, but for a long time, is NOT highly available
• High Availability rather means
– Long Mean Time Between Failures (MTBF)
– Short Mean Time To Recover (MTTR)
• High availability is:
– a system design protocol and associated implementation that ensures a certain degree of
operational continuity during a given reference period.
6. High Availability Components
High availability is a system design protocol and associated implementation that
ensures a certain degree of operational continuity during a reference period.
For stateful services, we
need to make sure that
data is made redundant.
It is not a replacement
for backups!
Data Redundancy
Some mechanism to
redirect traffic from the
failed server or
Datacenter to a working
one
Failover or Switchover
Solution
Availability of the
services needs to be
monitored, to take
action when there is a
failure or even to
prevent them
Monitoring and
Management
8. General Terms
• Single Point of Failure (SPOF)
– An element is a SPOF when its failure results in a full stop of the service as no other element
can take over (storage, WAN connection, replication channel)
– It is important to evaluate the costs for eliminating the SPOF, the likelihood that it may fail,
and the time required to bring it into service again
• Downtime
– the period of time a service is down. Planned and unplanned. Planned downtime is part of the
overall availability
• Shared vs. Local Storage
– Shared storage systems like SANs can provide built-in high availability, though this comes with
equally high costs
– Not really suitable for Disaster Recovery scenario on multiple Data Center
– Local storage comes with low cost but we need to implement ways for replicating /mirroring
data
9. General Terms
• Switchover
– When a manual process is used to switch from one system to a redundant or standby system in
case of a failure
• Failover
– Automatic switchover, without human intervention
• Failback
– A (often-underestimated) task to handle the recovery of a failed system and how to fail-back to
the original system after recovery
11. Replication Types
All nodes are masters
and applications can read
and write from/to any
node
Synchronous
Replication
The Master does not
confirm transactions to
the client application until
at least one slave has
copied the change to its
relay log, and flushed it to
disk
Semi-Syncronous
Replication
The Master does not
wait for Slave, the
master writes events to
its binary log and
slaves request them
when they are ready
Asynchronous
Replication
12. HA Begins with Data Replication
• Replication enables data from one MariaDB server (the master) to be
replicated to one or more MariaDB servers (the slaves)
• MariaDB Replication:
– Very easy to setup:
• On master: Define a replication user
• On slave: CHANGE MASTER TO … <options>
– Used to scale out read workloads
– Provide a first level of high availability and geographic redundancy
– Allows to offload backups and analytic jobs.
13. Asynchronous Replication
• MariaDB Replication is asynchronous by default.
• Slave determines how much to read and from which point in the binary log
• Slave can be behind master in reading and applying changes.
– Single threaded vs parallel replication
• If the master crashes, transactions might not have been transmitted to any
slave
• Asynchronous replication is great for read scaling as adding more replicas
does not impact replication latency
14. Asynchronous Replication-Switch Over
1. The master server is down
2. The slave(s) server(s) is(are) updated to the last position in the relay log
3. Determine which slave server is the most suitable to promote to master
4. Point reminding slaves to the promoted server
5. Point applications to new master server
6. All steps are manual
Master and Slaves
ReadOnly Slaves
Master and Slaves
ReadOnly Slaves
16. MaxScale Use Case
Asynchronous
Replication Failover
New in MaxScale v2.2
Each application server
uses only 1 connection
MaxScale identifies the “master” and
“slaves” nodes
If the “master” node fails,
a new one can be selected and promoted
MariaDB Replication + R/W split routing
Max
Scale
Master and Slaves
ReadOnly Slaves
17. MariaDB GTID Implementation
• Always ON since MariaDB v10.0
– Compatible w/ non-GTID replication: binary log file and position.
• Allows for better control of the replication chain.
– Slave position is recorded crash safe in the same transaction as the last successful DML statement
– Doesn’t require knowing the last binary log file name and position.
– Replication will start from the last recorded GTID
• Allows multi-master replication
– A single slave can have multiple incoming Replication Streams
• MaxScale will select active master automatically
• GTID Components:
– Domain ID: Allows to identify the logical origin of the transactions.
– Server ID: Identifies the server where the transaction originated.
– Transaction Sequence: Monotonically increasing number identifying the transaction.
18. Semi-synchronous Replication
• MariaDB supports semi-synchronous replication:
– The master does not confirm transactions to the client application until at least one slave has
copied the change to its relay log, and flushed it to disk.
– Eliminates data loss by securing a copy of all transactions in at least one slave.
– When a commit returns successfully, it is known that the data exists in at least two places (on the
master and at least one slave).
– Semi- synchronous has a performance impact due to the additional round trip.
• Adds the network latency to the transaction processing time
19. MariaDB Enhanced Semi-synchronous Replication
• One or more slaves can be defined as working semi-synchronously.
• For these slaves, the master waits until the I/O thread on one or more of the semi-synch slaves
has flushed the transaction to disk.
• This ensures that all committed transactions are at least stored in the relay log of the slave.
• If no semi-synch slave can acknowledge the transaction, the master will
downgrade to asynchronous replication after waiting for a timeout period.
Once a semi-synch slave comes back online, the master will reset back to semi-
synch replication.
• Status variable: Rpl_semi_sync_master_status
20. Semi-synchronous Replication – Switch Over
• The steps for a failover are the same as when using the standard replication
• A slave should be chosen among those (if many) that are be semi- synched with the master
Master and Slaves
Semi-Sync
Slave
Async Slaves
Master and Slaves
Async Slaves
21. Semi-Sync Replication Topologies
• Semi- synchronous replication is used between master
and backup master
• Semi- sync replication has a performance impact, but the
risk for data loss is minimized.
• This topology works well when performing master
failover
– The backup master acts as a warm-standby server
– it has the highest probability of having up-to-date data if
compared to other slaves.
Semi_sync
Asynchronous
ReadOnly/
Backup Master
ReadOnly
22. MariaDB Multi-Source Replication
• It enables a slave to receive transactions from
multiple sources simultaneously.
• It can be used to backup multiple servers to a
single server, to merge table shards, and
consolidate data from multiple servers to a single
server.
• GTID helps to track transactions coming from
different servers / applications.
• Note: There is not conflict resolution. Last DML
to reach the slave ‘wins’
Master 2Master 1 Master 3
Slave
23. Combining MariaDB Replication Features
• Replication features can be combined to form more
resilient configurations
• Example:
– Implement semi-sync circular replication to increase data
resilience
– Use GTID to avoid duplicate transactions
– Use read-only slaves for read scale out
– Use MaxScale:
• Transactions will go to active master
• Reads will be offloaded to slaves
• Fast failover
– Writes go to a single master at any given time
Semi_sync
Asynchronous
Backup Master
ReadOnly
24. Synchronous Replication (Galera)
• Galera Replication is a synchronous multi-master
replication plug-in that enables a true master-master
setup for InnoDB.
• Every component of the cluster (node) is a share
nothing server
• All nodes are masters and applications can read and
write from any node
– NOTE: No conflict resolution
• A minimal Galera cluster consists of 3 nodes:
– A proper cluster needs to reach a quorum (i.e. the
majority of the nodes of the cluster)
• Transactions are synchronously committed on all
nodes.
MariaDB
MariaDB
MariaDB
25. Synchronous Replication (Galera)
• PROS
– A high availability solution with synchronous
replication, failover and resynchronization
– No loss of data
– All servers have up-to-date data (no slave lag)
– Read scalability, every node has latest data available
MariaDB
MariaDB
MariaDB
26. Synchronous Replication (Galera)
• CONS
– It only supports InnoDB
– The transaction rollback rate and hence the
transaction latency, can increase with the number of
the cluster nodes
– The cluster performs as its least performing node
• an overloaded master affects the performance of
the Galera cluster
– Network latency affects transaction throughput
MariaDB
MariaDB
MariaDB
27. MDBE
Cluster Failover
Clustered nodes cooperate
to remain in sync
With multiple master nodes,
reads and updates* both scale*
Synchronous replication with
optimistic locking delivers high
availability with little overhead
Fast failover because all
nodes remains synchronizedMariaDB
MariaDB
MariaDB
Load Balancing
and Failover
Application /
App Server
28. MaxScale Use Case
MDBE Cluster
Synchronous Replication
Each application server
uses only 1 connection
MaxScale selects one node
as “master” and the other
nodes as “slaves”
If the “master” node fails,
a new one can be elected
immediately
Galera Cluster + R/W split routing
Max
Scale
29. MariaDB HA: MaxScale
• Re-route traffic between
master and slave(s)
• Failover / slave promotion
- NEW in v2.2
• Switchover on command - NEW
in v2.2
• Implemented for Booking.com
• Part of MaxScale release
• All slaves are in sync,
easy to promote any slave
tter Detects Active Master
Binary Log Server