Part II of our free self-training slides on MySQL Cluster.
In this part we cover 'Detailed Concepts':
* Data Distribution & Partitioning
* Two Phase Commit Protocol
* Transaction Resources
Ibm spectrum scale fundamentals workshop for americas part 2 IBM Spectrum Sca...
This document discusses quorum nodes in Spectrum Scale clusters and recovery from failures. It describes how quorum nodes determine the active cluster and prevent partitioning. The document outlines best practices for quorum nodes and provides steps to recover from loss of a quorum node majority or failure of the primary and secondary configuration servers.
Ibm spectrum scale fundamentals workshop for americas part 3 Information Life...
IBM Spectrum Scale can help achieve ILM efficiencies through policy-driven, automated tiered storage management. The ILM toolkit manages file sets and storage pools and automates data management. Storage pools group similar disks and classify storage within a file system. File placement and management policies determine file placement and movement based on rules.
This document discusses mixed workloads and why organizations consolidate servers and databases. It describes how instance caging can be used to partition CPU resources on a server among multiple database instances. Instance caging limits the number of Oracle processes that each database instance can use at one time, providing isolation. The document provides best practices for configuring instance caging and monitoring its throttling effects. It notes there may be additional aspects to consider for governing CPU usage within a consolidated database.
This presentation was written by Wagner Bianchi for the presentation on the Oracle Consulting Team/Professional Services meeting that took place in San Francisco/CA.
IBM Spectrum Scale can be used as both the source and destination for backup and archiving. As a source, Spectrum Scale data can be backed up to products like Spectrum Protect, Spectrum Archive, and third-party backup software. As a destination, Spectrum Protect can use Spectrum Scale and ESS storage for storing backed up or archived data, providing scalability, performance, and cost benefits over other solutions. Case studies demonstrate how large enterprises and regional hospital networks have consolidated backup infrastructure and improved availability, capacity, and backup/restore speeds by combining Spectrum Scale and Spectrum Protect.
MySQL Enterprise Backup provides fast, consistent, online backups of MySQL databases. It allows for full and incremental backups, compressed backups to reduce storage needs, and point-in-time recovery. MySQL Enterprise Backup works by backing up InnoDB data files, copying and compressing the files, and backing up the transaction log files from the time period when the data files were copied. This allows for consistent backups and point-in-time recovery of the database.
Ibm spectrum scale fundamentals workshop for americas part 1 components archi...
The document provides instructions for installing and configuring Spectrum Scale 4.1. Key steps include: installing Spectrum Scale software on nodes; creating a cluster using mmcrcluster and designating primary/secondary servers; verifying the cluster status with mmlscluster; creating Network Shared Disks (NSDs); and creating a file system. The document also covers licensing, system requirements, and IBM and client responsibilities for installation and maintenance.
MySQL Performance Tuning: The Perfect Scalability (OOW2019)
This document discusses optimizing MySQL performance as data and concurrency increase. It covers horizontal and vertical scaling techniques as well as improvements for I/O-bound, CPU-bound, and network-bound workloads. Specific tuning techniques are proposed for areas like replication, query tuning, indexing, and Linux configuration settings like CPU affinity. The goal is to scale the database with minimal infrastructure adjustments to control operational costs.
Spectrum Scale - Diversified analytic solution based on various storage servi...
This slides describe diversified analytic solutions based on Spectrum Scale with various deployment mode, such as storage rich-server, share storage, IBM DeepFlash 150 and Elastic Storage Server. It deep dives several advanced data management features and solutions for BD&A workload derived from Spectrum Scale.
This document discusses backup and recovery strategies for Oracle Exadata systems. It outlines the fundamental principles of backups including having multiple copies of data stored on different media with one copy offsite. It then describes the various backup options for Exadata, including using additional Exadata storage cells for the fastest backups, using a ZFS storage appliance for flexibility, or backing up to tape for economical long-term storage with removable offline copies. Key metrics like backup and restore speeds are provided for each option.
Database as a Service on the Oracle Database Appliance Platform
Speaker: Marc Fielding, Co-speaker: Maris Elsins.
Oracle Database Appliance provides a robust, highly-available, cost-effective, and surprisingly scalable platform for database as a service environment. By leveraging Oracle Enterprise Manager's self-service features, databases can be provisioned on a self-service basis to a cluster of Oracle Database Appliance machines. Discover how multiple ODA devices can be managed together to provide both high availability and incremental, cost-effective scalability. Hear real-world lessons learned from successful database consolidation implementations.
In this Introduction to GlusterFS webinar, introduction and review of the GlusterFS architecture and key functionalities. Learn how GlusterFS is deployed in the datacenter, in the cloud, or between the two. We’ll also cover a brief update on GlusterFS v3.3 which is currently in beta.
Webinar Sept 22: Gluster Partners with Redapt to Deliver Scale-Out NAS Storage
Gluster has partnered with Redapt, Inc., an innovative data center architecture and infrastructure solutions provider, to integrate GlusterFS with hardware providing customers with highly-scalable NAS storage technology for on-premise, virtual and cloud environments. Gluster's storage technology enables Redapt to offer a comprehensive, cost-effective storage solution delivering the scalability, performance and reliability that companies need to effectively run their data centers.
This webinar will provide an overview of the partnership, benefits of the joint solution, and include use cases of how customers today are deploying the joint solution. .
Best Practices of HA and Replication of PostgreSQL in Virtualized Environments
This document discusses best practices for high availability (HA) and replication of PostgreSQL databases in virtualized environments. It covers enterprise needs for HA, technologies like VMware HA and replication that can provide HA, and deployment blueprints for HA, read scaling, and disaster recovery within and across datacenters. The document also discusses PostgreSQL's different replication modes and how they can be used for HA, read scaling, and disaster recovery.
Best Practices for Becoming an Exceptional Postgres DBA
Drawing from our teams who support hundreds of Postgres instances and production database systems for customers worldwide, this presentation provides real-real best practices from the nation's top DBAs. Learn top-notch monitoring and maintenance practices, get resource planning advice that can help prevent, resolve, or eliminate common issues, learning top database tuning tricks for increasing system performance and ultimately, gain greater insight into how to improve your effectiveness as a DBA.
The document summarizes several industry standard benchmarks for measuring database and application server performance including SPECjAppServer2004, EAStress2004, TPC-E, and TPC-H. It discusses PostgreSQL's performance on these benchmarks and key configuration parameters used. There is room for improvement in PostgreSQL's performance on TPC-E, while SPECjAppServer2004 and EAStress2004 show good performance. TPC-H performance requires further optimization of indexes and query plans.
This document provides information about a technical university presentation on IBM Spectrum Scale for file and object storage given by Tony Pearson. The presentation schedule lists topics such as software defined storage, converged and hyperconverged environments, big data architectures, and IBM storage integration with OpenStack. The document discusses challenges of islands of block, file, and object level data and how IBM Spectrum Scale provides a single global namespace and universal data access across various protocols. It describes features of IBM Spectrum Scale such as extreme scalability, high performance, reliability, and supported topologies.
The presentation discussed moving applications to the cloud for scalability, flexibility and pay-as-you-go pricing, noting key differences between RSAWEBCloud and AWS; challenges for developers include optimizing applications for production environments and handling scaling which requires separating concerns like data types and using caching, load balancing, and autoscaling tools.
MySQL Cluster Carrier Grade Edition is a high availability, distributed database solution based on MySQL Cluster. It provides real-time performance with 99.999% uptime through a shared-nothing architecture across up to 255 nodes. Key applications include high-traffic ecommerce sites, telecom subscriber databases, and other systems requiring high scalability and availability.
This document discusses handling massive writes for online transaction processing (OLTP) systems. It begins with an introduction and overview of the topics to be covered, including terminology, differences between massive reads versus writes, and potential solutions using relational databases, NoSQL databases, and code optimizations. Specific solutions discussed for massive writes include using memory, fast disks, caching, column-oriented databases, SQL tuning, database partitioning, reading from slaves, and sharding or splitting data across multiple databases. The document provides pros and cons of each approach and examples of performance improvements observed.
This document provides an overview and summary of updates and new features in MySQL 5.6:
- MySQL 5.6 improves performance, scalability, instrumentation, transactional throughput, availability, and flexibility compared to previous versions.
- Key areas of focus include improvements to InnoDB for transactional workloads, replication for high availability and data integrity, and the optimizer for better performance and diagnostics.
- New features in MySQL 5.6 include enhanced replication utilities for high availability, improved subquery and index optimizations in the query optimizer, and expanded performance schema instrumentation for database profiling.
Oracle MySQL Tutorial -- MySQL NoSQL Cloud Buenos Aires Nov, 13 2014
The document discusses Oracle MySQL Enterprise Edition. It provides an overview of Oracle's investment and innovation in the MySQL ecosystem over the past 5 years. It then covers various features and components of MySQL Enterprise Edition including replication, storage engines, scalability, high availability, security, monitoring, backup and integration with Oracle technologies.
The document discusses MySQL Enterprise Monitor, a tool that provides centralized monitoring of MySQL environments. It allows users to get a single consolidated view of an entire MySQL infrastructure, including automated monitoring, alerts, query analysis, and visualizations. It also features integrated replication monitoring, security advisors to detect issues, and integration with support to help troubleshoot problems. The goal is to help DBAs more easily manage MySQL performance, scale their work, and spend less time on tasks like writing custom monitoring scripts.
The objective of this presentation is to give Oracle DBAs the necessary background information to understand what is doable with MySQL and how to integrate MySQL instances into the Oracle world.
The document describes the evolution of Facebook's big data architectures from 2007 to 2011. It started with a traditional data warehouse using MySQL and grew significantly over time. Facebook moved to Hadoop and Hive in 2008 to enable data science at scale and store all data online. In 2009, they further democratized data with tools to make it accessible. Later improvements focused on isolation, efficiency, utilization and monitoring to control the growing chaos. By 2011, they developed Puma for real-time analytics and Peregrine for fast queries to go beyond Hadoop.
Lessons Learned: Novell Open Enterprise Server Upgrades Made Easy
You've read the documentation, played in the lab, and now you're ready to jump in and upgrade your NetWare environment to Novell Open Enterprise Server 2 on Linux. Attend this session to glean a final few best practices and to learn how to make the most of the migration tools included in the product. You'll also learn about the various pitfalls encountered during real-world upgrades, as well as the solutions used to resolve them.
This document provides an overview of MySQL and how to get the most out of it. It discusses when MySQL is a good choice, how to scale MySQL for different use cases, and how to ensure high availability and performance. It also covers MySQL Fabric for sharding and high availability, and new features in MySQL like support for JSON and key-value stores. The presentation aims to help users understand how to choose and optimize MySQL for their needs.
The Novell File Management Suite is a solution that helps organizations intelligently manage file storage using identity-driven policies. It utilizes Novell Storage Manager to automate storage policies connected to user identity, Novell File Reporter for file discovery and reporting, and Novell Dynamic File Services for auto-tiering of data without impacting users. The suite helps control storage costs, understand data better, automate administration, and unlock hidden value in file systems.
The new Novell File Management Suite is drawing accolades from customers, analysts and industry watchers alike. This session will help you dive in and see exactly what the product can do for your organization. We'll focus on the product's capabilities and its many use cases. We'll also explore the way it can help you better understand your organization's storage usage and give you the tools to begin automating the management of storage resources.
Cassandra EU 2012 - Overview of Case Studies and State of the Market by 451 R...
The document discusses NoSQL, NewSQL, and other database technologies that are emerging to address limitations of relational databases in scaling to meet demands for performance, availability, and flexibility. It provides an overview of different categories of NoSQL databases and NewSQL solutions, and analyzes drivers like scalability, performance, relaxed consistency, agility, and complexity of data that are contributing to adoption of these new database approaches.
Haytham ElFadeel presented on next-generation storage systems and key-value stores. He began with an overview of scalable systems and the need for both vertical and horizontal scalability. He discussed the limitations of traditional databases in scaling, including complexity, wasted features, and multi-step query processing. Key-value stores were presented as an alternative, offering simple interfaces and designs optimized for scaling across hundreds of machines. Performance comparisons showed key-value stores significantly outperforming databases. Systems discussed included Amazon Dynamo, Facebook Cassandra, and Redis.
This document discusses MySQL high availability. It begins with some questions to consider regarding high availability needs. It then covers key high availability concepts and terms. The main part describes various MySQL high availability solutions, including replication, clustering, heartbeat with replication, DRBD with replication, and shared storage with clustering agents. It concludes by mentioning some additional solutions and resources for MySQL high availability.
Novell Storage Manager: Your Secret Weapon for Simplified File and User Manag...
See how the popular Novell Storage Manager can help you manage file storage and user administration like never before. Leveraging user identities and roles, you can customize policies based on your business rules, thereby automating redundant tasks and reducing the heavy manual effort typically required for file management. Attend this session to hear from the experts on architecture, deployment patterns and how to get the most bang for your buck!
Pythian is a recognized leader in database administration and consulting services for Oracle, MySQL, and SQL Server. They employ over 7 Oracle ACEs and have expertise managing complex database deployments for over 165 companies globally. Pythian provides 24/7 remote DBA support and consulting services to help customers with database administration, systems administration, projects, and emergency response.
Avi Jain has over 3 years of experience in IT with expertise in database administration, software development, big data analytics, and virtualization. He has worked extensively with Oracle, MySQL, MongoDB, and other databases. Notable projects include developing a music recommendation engine using Mahout on Hadoop, building a distributed service using Zookeeper, and designing virtual machine disaster recovery and power management systems on VMware. Avi holds an MS in Software Engineering from San Jose State University and seeks new opportunities as a database administrator or big data engineer.
Avi Jain has over 3 years of experience in IT with expertise in database administration, software development, big data analytics, and virtualization. He has worked extensively with Oracle, MySQL, MongoDB, and other databases. Notable projects include developing a music recommendation engine using Mahout on Hadoop, building a distributed service using Zookeeper, and designing virtual machine disaster recovery systems on VMware. Avi holds an MS in Software Engineering from San Jose State University and seeks new opportunities as a database administrator or big data engineer.
This webinar aims to equip Cloud Service Providers (CSPs) with the knowledge and tools to differentiate themselves from hyperscalers by offering a Database-as-a-Service (DBaaS) solution. The session will introduce and demonstrate CCX, a drop-in, premium DBaaS designed for rapid adoption.
Learn more about CCX for CSPs here: https://bit.ly/3VabiDr
Ibm spectrum scale fundamentals workshop for americas part 5 ess gnr-usecases...xKinAnx
This document provides an overview of Spectrum Scale 4.1 system administration. It describes the Elastic Storage Server options and components, Spectrum Scale native RAID (GNR), and tips for best practices. GNR implements sophisticated data placement and error correction algorithms using software RAID to provide high reliability and performance without additional hardware. It features auto-rebalancing, low rebuild overhead through declustering, and end-to-end data checksumming.
Slides presented at Great Indian Developer Summit 2016 at the session MySQL: What's new on April 29 2016.
Contains information about the new MySQL Document Store released in April 2016.
This document provides a guide to MySQL performance tuning. It discusses identifying performance bottlenecks, measuring system resources like I/O, memory, and CPU, tuning MySQL settings like the key buffer size and InnoDB buffer pool size, and changing application queries and indexes to improve performance. Key steps include finding slow queries, enabling the slow query log, and profiling queries to identify optimization opportunities.
Ibm spectrum scale fundamentals workshop for americas part 2 IBM Spectrum Sca...xKinAnx
This document discusses quorum nodes in Spectrum Scale clusters and recovery from failures. It describes how quorum nodes determine the active cluster and prevent partitioning. The document outlines best practices for quorum nodes and provides steps to recover from loss of a quorum node majority or failure of the primary and secondary configuration servers.
Ibm spectrum scale fundamentals workshop for americas part 3 Information Life...xKinAnx
IBM Spectrum Scale can help achieve ILM efficiencies through policy-driven, automated tiered storage management. The ILM toolkit manages file sets and storage pools and automates data management. Storage pools group similar disks and classify storage within a file system. File placement and management policies determine file placement and movement based on rules.
This document discusses mixed workloads and why organizations consolidate servers and databases. It describes how instance caging can be used to partition CPU resources on a server among multiple database instances. Instance caging limits the number of Oracle processes that each database instance can use at one time, providing isolation. The document provides best practices for configuring instance caging and monitoring its throttling effects. It notes there may be additional aspects to consider for governing CPU usage within a consolidated database.
This presentation was written by Wagner Bianchi for the presentation on the Oracle Consulting Team/Professional Services meeting that took place in San Francisco/CA.
Ibm spectrum scale_backup_n_archive_v03_ashAshutosh Mate
IBM Spectrum Scale can be used as both the source and destination for backup and archiving. As a source, Spectrum Scale data can be backed up to products like Spectrum Protect, Spectrum Archive, and third-party backup software. As a destination, Spectrum Protect can use Spectrum Scale and ESS storage for storing backed up or archived data, providing scalability, performance, and cost benefits over other solutions. Case studies demonstrate how large enterprises and regional hospital networks have consolidated backup infrastructure and improved availability, capacity, and backup/restore speeds by combining Spectrum Scale and Spectrum Protect.
MySQL Enterprise Backup provides fast, consistent, online backups of MySQL databases. It allows for full and incremental backups, compressed backups to reduce storage needs, and point-in-time recovery. MySQL Enterprise Backup works by backing up InnoDB data files, copying and compressing the files, and backing up the transaction log files from the time period when the data files were copied. This allows for consistent backups and point-in-time recovery of the database.
Ibm spectrum scale fundamentals workshop for americas part 1 components archi...xKinAnx
The document provides instructions for installing and configuring Spectrum Scale 4.1. Key steps include: installing Spectrum Scale software on nodes; creating a cluster using mmcrcluster and designating primary/secondary servers; verifying the cluster status with mmlscluster; creating Network Shared Disks (NSDs); and creating a file system. The document also covers licensing, system requirements, and IBM and client responsibilities for installation and maintenance.
MySQL Performance Tuning: The Perfect Scalability (OOW2019)Mirko Ortensi
This document discusses optimizing MySQL performance as data and concurrency increase. It covers horizontal and vertical scaling techniques as well as improvements for I/O-bound, CPU-bound, and network-bound workloads. Specific tuning techniques are proposed for areas like replication, query tuning, indexing, and Linux configuration settings like CPU affinity. The goal is to scale the database with minimal infrastructure adjustments to control operational costs.
Spectrum Scale - Diversified analytic solution based on various storage servi...Wei Gong
This slides describe diversified analytic solutions based on Spectrum Scale with various deployment mode, such as storage rich-server, share storage, IBM DeepFlash 150 and Elastic Storage Server. It deep dives several advanced data management features and solutions for BD&A workload derived from Spectrum Scale.
This document discusses backup and recovery strategies for Oracle Exadata systems. It outlines the fundamental principles of backups including having multiple copies of data stored on different media with one copy offsite. It then describes the various backup options for Exadata, including using additional Exadata storage cells for the fastest backups, using a ZFS storage appliance for flexibility, or backing up to tape for economical long-term storage with removable offline copies. Key metrics like backup and restore speeds are provided for each option.
Database as a Service on the Oracle Database Appliance PlatformMaris Elsins
Speaker: Marc Fielding, Co-speaker: Maris Elsins.
Oracle Database Appliance provides a robust, highly-available, cost-effective, and surprisingly scalable platform for database as a service environment. By leveraging Oracle Enterprise Manager's self-service features, databases can be provisioned on a self-service basis to a cluster of Oracle Database Appliance machines. Discover how multiple ODA devices can be managed together to provide both high availability and incremental, cost-effective scalability. Hear real-world lessons learned from successful database consolidation implementations.
In this Introduction to GlusterFS webinar, introduction and review of the GlusterFS architecture and key functionalities. Learn how GlusterFS is deployed in the datacenter, in the cloud, or between the two. We’ll also cover a brief update on GlusterFS v3.3 which is currently in beta.
Webinar Sept 22: Gluster Partners with Redapt to Deliver Scale-Out NAS StorageGlusterFS
Gluster has partnered with Redapt, Inc., an innovative data center architecture and infrastructure solutions provider, to integrate GlusterFS with hardware providing customers with highly-scalable NAS storage technology for on-premise, virtual and cloud environments. Gluster's storage technology enables Redapt to offer a comprehensive, cost-effective storage solution delivering the scalability, performance and reliability that companies need to effectively run their data centers.
This webinar will provide an overview of the partnership, benefits of the joint solution, and include use cases of how customers today are deploying the joint solution. .
Best Practices of HA and Replication of PostgreSQL in Virtualized EnvironmentsJignesh Shah
This document discusses best practices for high availability (HA) and replication of PostgreSQL databases in virtualized environments. It covers enterprise needs for HA, technologies like VMware HA and replication that can provide HA, and deployment blueprints for HA, read scaling, and disaster recovery within and across datacenters. The document also discusses PostgreSQL's different replication modes and how they can be used for HA, read scaling, and disaster recovery.
Best Practices for Becoming an Exceptional Postgres DBA EDB
Drawing from our teams who support hundreds of Postgres instances and production database systems for customers worldwide, this presentation provides real-real best practices from the nation's top DBAs. Learn top-notch monitoring and maintenance practices, get resource planning advice that can help prevent, resolve, or eliminate common issues, learning top database tuning tricks for increasing system performance and ultimately, gain greater insight into how to improve your effectiveness as a DBA.
The document summarizes several industry standard benchmarks for measuring database and application server performance including SPECjAppServer2004, EAStress2004, TPC-E, and TPC-H. It discusses PostgreSQL's performance on these benchmarks and key configuration parameters used. There is room for improvement in PostgreSQL's performance on TPC-E, while SPECjAppServer2004 and EAStress2004 show good performance. TPC-H performance requires further optimization of indexes and query plans.
IBM Spectrum Scale for File and Object StorageTony Pearson
This document provides information about a technical university presentation on IBM Spectrum Scale for file and object storage given by Tony Pearson. The presentation schedule lists topics such as software defined storage, converged and hyperconverged environments, big data architectures, and IBM storage integration with OpenStack. The document discusses challenges of islands of block, file, and object level data and how IBM Spectrum Scale provides a single global namespace and universal data access across various protocols. It describes features of IBM Spectrum Scale such as extreme scalability, high performance, reliability, and supported topologies.
The presentation discussed moving applications to the cloud for scalability, flexibility and pay-as-you-go pricing, noting key differences between RSAWEBCloud and AWS; challenges for developers include optimizing applications for production environments and handling scaling which requires separating concerns like data types and using caching, load balancing, and autoscaling tools.
MySQL Cluster Carrier Grade Edition is a high availability, distributed database solution based on MySQL Cluster. It provides real-time performance with 99.999% uptime through a shared-nothing architecture across up to 255 nodes. Key applications include high-traffic ecommerce sites, telecom subscriber databases, and other systems requiring high scalability and availability.
This document discusses handling massive writes for online transaction processing (OLTP) systems. It begins with an introduction and overview of the topics to be covered, including terminology, differences between massive reads versus writes, and potential solutions using relational databases, NoSQL databases, and code optimizations. Specific solutions discussed for massive writes include using memory, fast disks, caching, column-oriented databases, SQL tuning, database partitioning, reading from slaves, and sharding or splitting data across multiple databases. The document provides pros and cons of each approach and examples of performance improvements observed.
This document provides an overview and summary of updates and new features in MySQL 5.6:
- MySQL 5.6 improves performance, scalability, instrumentation, transactional throughput, availability, and flexibility compared to previous versions.
- Key areas of focus include improvements to InnoDB for transactional workloads, replication for high availability and data integrity, and the optimizer for better performance and diagnostics.
- New features in MySQL 5.6 include enhanced replication utilities for high availability, improved subquery and index optimizations in the query optimizer, and expanded performance schema instrumentation for database profiling.
Oracle MySQL Tutorial -- MySQL NoSQL Cloud Buenos Aires Nov, 13 2014Manuel Contreras
The document discusses Oracle MySQL Enterprise Edition. It provides an overview of Oracle's investment and innovation in the MySQL ecosystem over the past 5 years. It then covers various features and components of MySQL Enterprise Edition including replication, storage engines, scalability, high availability, security, monitoring, backup and integration with Oracle technologies.
The document discusses MySQL Enterprise Monitor, a tool that provides centralized monitoring of MySQL environments. It allows users to get a single consolidated view of an entire MySQL infrastructure, including automated monitoring, alerts, query analysis, and visualizations. It also features integrated replication monitoring, security advisors to detect issues, and integration with support to help troubleshoot problems. The goal is to help DBAs more easily manage MySQL performance, scale their work, and spend less time on tasks like writing custom monitoring scripts.
The objective of this presentation is to give Oracle DBAs the necessary background information to understand what is doable with MySQL and how to integrate MySQL instances into the Oracle world.
The document describes the evolution of Facebook's big data architectures from 2007 to 2011. It started with a traditional data warehouse using MySQL and grew significantly over time. Facebook moved to Hadoop and Hive in 2008 to enable data science at scale and store all data online. In 2009, they further democratized data with tools to make it accessible. Later improvements focused on isolation, efficiency, utilization and monitoring to control the growing chaos. By 2011, they developed Puma for real-time analytics and Peregrine for fast queries to go beyond Hadoop.
Lessons Learned: Novell Open Enterprise Server Upgrades Made EasyNovell
You've read the documentation, played in the lab, and now you're ready to jump in and upgrade your NetWare environment to Novell Open Enterprise Server 2 on Linux. Attend this session to glean a final few best practices and to learn how to make the most of the migration tools included in the product. You'll also learn about the various pitfalls encountered during real-world upgrades, as well as the solutions used to resolve them.
This document provides an overview of MySQL and how to get the most out of it. It discusses when MySQL is a good choice, how to scale MySQL for different use cases, and how to ensure high availability and performance. It also covers MySQL Fabric for sharding and high availability, and new features in MySQL like support for JSON and key-value stores. The presentation aims to help users understand how to choose and optimize MySQL for their needs.
The Novell File Management Suite is a solution that helps organizations intelligently manage file storage using identity-driven policies. It utilizes Novell Storage Manager to automate storage policies connected to user identity, Novell File Reporter for file discovery and reporting, and Novell Dynamic File Services for auto-tiering of data without impacting users. The suite helps control storage costs, understand data better, automate administration, and unlock hidden value in file systems.
The new Novell File Management Suite is drawing accolades from customers, analysts and industry watchers alike. This session will help you dive in and see exactly what the product can do for your organization. We'll focus on the product's capabilities and its many use cases. We'll also explore the way it can help you better understand your organization's storage usage and give you the tools to begin automating the management of storage resources.
Cassandra EU 2012 - Overview of Case Studies and State of the Market by 451 R...Acunu
The document discusses NoSQL, NewSQL, and other database technologies that are emerging to address limitations of relational databases in scaling to meet demands for performance, availability, and flexibility. It provides an overview of different categories of NoSQL databases and NewSQL solutions, and analyzes drivers like scalability, performance, relaxed consistency, agility, and complexity of data that are contributing to adoption of these new database approaches.
Haytham ElFadeel presented on next-generation storage systems and key-value stores. He began with an overview of scalable systems and the need for both vertical and horizontal scalability. He discussed the limitations of traditional databases in scaling, including complexity, wasted features, and multi-step query processing. Key-value stores were presented as an alternative, offering simple interfaces and designs optimized for scaling across hundreds of machines. Performance comparisons showed key-value stores significantly outperforming databases. Systems discussed included Amazon Dynamo, Facebook Cassandra, and Redis.
This document discusses MySQL high availability. It begins with some questions to consider regarding high availability needs. It then covers key high availability concepts and terms. The main part describes various MySQL high availability solutions, including replication, clustering, heartbeat with replication, DRBD with replication, and shared storage with clustering agents. It concludes by mentioning some additional solutions and resources for MySQL high availability.
Novell Storage Manager: Your Secret Weapon for Simplified File and User Manag...Novell
See how the popular Novell Storage Manager can help you manage file storage and user administration like never before. Leveraging user identities and roles, you can customize policies based on your business rules, thereby automating redundant tasks and reducing the heavy manual effort typically required for file management. Attend this session to hear from the experts on architecture, deployment patterns and how to get the most bang for your buck!
Pythian is a recognized leader in database administration and consulting services for Oracle, MySQL, and SQL Server. They employ over 7 Oracle ACEs and have expertise managing complex database deployments for over 165 companies globally. Pythian provides 24/7 remote DBA support and consulting services to help customers with database administration, systems administration, projects, and emergency response.
Avi Jain has over 3 years of experience in IT with expertise in database administration, software development, big data analytics, and virtualization. He has worked extensively with Oracle, MySQL, MongoDB, and other databases. Notable projects include developing a music recommendation engine using Mahout on Hadoop, building a distributed service using Zookeeper, and designing virtual machine disaster recovery and power management systems on VMware. Avi holds an MS in Software Engineering from San Jose State University and seeks new opportunities as a database administrator or big data engineer.
Avi Jain has over 3 years of experience in IT with expertise in database administration, software development, big data analytics, and virtualization. He has worked extensively with Oracle, MySQL, MongoDB, and other databases. Notable projects include developing a music recommendation engine using Mahout on Hadoop, building a distributed service using Zookeeper, and designing virtual machine disaster recovery systems on VMware. Avi holds an MS in Software Engineering from San Jose State University and seeks new opportunities as a database administrator or big data engineer.
Similar to Severalnines Self-Training: MySQL® Cluster - Part II (20)
LIVE DEMO: CCX for CSPs, a drop-in DBaaS solutionSeveralnines
This webinar aims to equip Cloud Service Providers (CSPs) with the knowledge and tools to differentiate themselves from hyperscalers by offering a Database-as-a-Service (DBaaS) solution. The session will introduce and demonstrate CCX, a drop-in, premium DBaaS designed for rapid adoption.
Learn more about CCX for CSPs here: https://bit.ly/3VabiDr
DIY DBaaS: A guide to building your own full-featured DBaaSSeveralnines
More so than ever, businesses need to ensure that their databases are resilient, secure, and always available to support their operations. Database-as-a-Service (DBaaS) solutions have become a popular way for organizations to manage their databases efficiently, leveraging cloud infrastructure and advanced set-and-forget automation.
However, consuming DBaaS from providers comes with many compromises. In this guide, we’ll show you how you can build your own flexible DBaaS, your way. We’ll demonstrate how it is possible to get the full spectrum of DBaaS capabilities along with workload access and portability, and avoid surrendering control to a third-party.
From architectural and design considerations to operational requirements, we’ll take you through the process step-by-step, providing all the necessary information and guidance to help you build a DBaaS solution that is tailor-made to your unique use case. So get ready to dive in and learn how to build your own custom DBaaS solution from scratch!
We created this guide to help developers understand:
- Traditional vs. Sovereign DBaaS implementation models
- The DBaaS environment, elements and design principles
- Using a Day 2 operations framework to develop your blueprint
- The 8 key operations that form the foundation of a complete DBaaS
- Bringing the Day 2 ops framework to life with a provisional architecture
- How you can abstract the orchestration layer with Severalnines solutions
Cloud's future runs through Sovereign DBaaSSeveralnines
Sovereign DBaaS is a new way to do DBaaS that allows you to reliably scale your open-source database ops without being limited to a specific environment or ceding control of your infrastructure to third-party service providers.
With Sovereign DBaaS, users can leverage the benefits of modern deployment strategies, e.g. public cloud, hybrid, etc., with additional security, compliance, and risk mitigation. So what exactly is Sovereign DBaaS and why should you choose one?
Presented by Sanjeev Mohan, Principal Analyst at SanjMo and former Gartner Research VP, and Vinay Joosery, CEO of Severalnines, this webinar dives into the future of the cloud and database management and introduces a new solution, Sovereign DBaaS.
The state of the cloud and its current challenges
What is Sovereign DBaaS?
Agenda:
- Key features of Sovereign DBaaS
- Why you should choose a Sovereign DBaaS
- How you can implement Sovereign DBaaS with Severalnines
- Q&A
Tips to drive maria db cluster performance for nextcloudSeveralnines
200
● SSD
2000
● NVMe
4000
Tune for your hardware. Higher is better but avoid over-committing IOPS.
innodb_flush_log_at_trx_commit 1 Flush logs at each transaction commit for ACID compliance.
innodb_log_buffer_size 16M-64M Default is 8M. Increase for more transactions per second.
innodb_log_file_size 1G Default is 48M. Increase for more transactions per second.
innodb_flush_method O_DIRECT Bypass OS cache for better durability.
innodb_thread_concurrency 0 Allow InnoDB to manage thread concurrency level.
Working with the Moodle Database: The BasicsSeveralnines
Managing the database behind Moodle is key to improving performance and achieving uptime for your users. In this training video we will talk about the Moodle database including topics like configuration, monitoring, and schema management as well as show you how ClusterControl can help with the management of your eLearning LMS systems.
SysAdmin Working from Home? Tips to Automate MySQL, MariaDB, Postgres & MongoDBSeveralnines
Are you an SysAdmin who is now responsible for your companies database operations? Then this is the webinar for you. Learn from a Senior DBA the basics you need to know to keep things up-and-running and how automation can help.
(slides) Polyglot persistence: utilizing open source databases as a Swiss poc...Severalnines
This document discusses polyglot persistence, which is using multiple specialized databases rather than a single general-purpose database. It provides examples of VidaXL's use of polyglot persistence, including MySQL, MariaDB, PostgreSQL, SOLR, Elasticsearch, MongoDB, Couchbase, and Prometheus. The benefits discussed are using the right database for each job and gaining flexibility as the company transitioned to microservices. Challenges included increased complexity, and solutions involved automation, tooling, and hiring database experts.
Webinar slides: How to Migrate from Oracle DB to MariaDBSeveralnines
This document provides an overview and agenda for a webinar on migrating from Oracle DB to MariaDB. The webinar will cover why organizations are moving to open source databases, the benefits of migrating to MariaDB from Oracle, how to plan and execute the migration process, and post-migration management topics like monitoring, backups, high availability, and scaling in MariaDB. The presentation will include discussions of data type mapping, enabling PL/SQL syntax in MariaDB, available migration tools, and testing approaches.
Webinar slides: How to Automate & Manage PostgreSQL with ClusterControlSeveralnines
Running PostgreSQL in production comes with the responsibility for a business critical environment; this includes high availability, disaster recovery, and performance. Ops staff worry whether databases are up and running, if backups are taken and tested for integrity, whether there are performance problems that might affect end user experience, if failover will work properly in case of server failure without breaking applications, and the list goes on.
ClusterControl can be used to operationalize your PostgreSQL footprint across your enterprise. It offers a standard way of deploying high-availability replication setups with auto-failover, integrated with load balancers offering a single endpoint to applications. It provides constant health and performance monitoring through rich dashboards, as well as backup management and point-in-time recovery
See how much time and effort can be saved, as well as risks mitigated, with the help of a unified management platform over the more traditional, manual methods.
We’ve seen a 152% increase in ClusterControl installations by PostgreSQL users last year, so make sure you don’t miss out on the trend!
AGENDA
- Managing PostgreSQL “the old way”:
- Common challenges
- Important tasks to perform
- Tools that are available to help
- PostgreSQL automation and management with ClusterControl:
- Deployment
- Backup and recovery
- HA setups
- Failover
- Monitoring
- Live Demo
SPEAKER
Sebastian Insausti, Support Engineer at Severalnines, has loved technology since his childhood, when he did his first computer course (Windows 3.11). And from that moment he was decided on what his profession would be. He has since built up experience with MySQL, PostgreSQL, HAProxy, WAF (ModSecurity), Linux (RedHat, CentOS, OL, Ubuntu server), Monitoring (Nagios), Networking and Virtualization (VMWare, Proxmox, Hyper-V, RHEV).
Prior to joining Severalnines, Sebastian worked as a consultant to state companies in security, database replication and high availability scenarios. He’s also a speaker and has given a few talks locally on InnoDB Cluster and MySQL Enterprise together with an Oracle team. Previous to that, he worked for a Mexican company as chief of sysadmin department as well as for a local ISP (Internet Service Provider), where he managed customers' servers and connectivity.
Webinar slides: How to Manage Replication Failover Processes for MySQL, Maria...Severalnines
Failover is the process of moving to a healthy standby component, during a failure or maintenance event, in order to preserve uptime. The quicker it can be done, the faster you can be back online. However, failover can be tricky for transactional database systems as we strive to preserve data integrity - especially in asynchronous or semi-synchronous topologies. There are risks associated, from diverging datasets to loss of data. Failing over due to incorrect reasoning, e.g., failed heartbeats in the case of network partitioning, can also cause significant harm.
This webinar replay gives a detailed overview of what failover processes may look like in MySQL, MariaDB and PostgreSQL replication setups. We’ve covered the dangers related to the failover process, and discuss the tradeoffs between failover speed and data integrity. We’ve found out about how to shield applications from database failures with the help of proxies. And we've finally had a look at how ClusterControl manages the failover process, and how it can be configured for both assisted and automated failover.
So if you’re looking at minimizing downtime and meet your SLAs through an automated or semi-automated approach, then this webinar replay is for you!
AGENDA
- An introduction to failover - what, when, how
- in MySQL / MariaDB
- in PostgreSQL
- To automate or not to automate
- Understanding the failover process
- Orchestrating failover across the whole HA stack
- Difficult problems
- Network partitioning
- Missed heartbeats
- Split brain
- From assisted to fully automated failover with ClusterControl
- Demo
SPEAKER
Krzysztof Książek, Senior Support Engineer at Severalnines, is a MySQL DBA with experience managing complex database environments for companies like Zendesk, Chegg, Pinterest and Flipboard.
What if …
- Traditional, labour-intensive backup and archive practices for your MySQL, MariaDB, MongoDB and PostgreSQL databases were a thing of the past?
- You could have one backup management solution for all your business data?
- You could ensure integrity of all your backups?
- You could leverage the competitive pricing and almost limitless capacity of cloud-based backup while meeting cost, manageability, and compliance requirements from the business.
Welcome to our webinar on Backup Management with ClusterControl.
ClusterControl’s centralized backup management for open source databases provides you with hot backups of large datasets, point in time recovery in a couple of clicks, at-rest and in-transit data encryption, data integrity via automatic restore verification, cloud backups (AWS, Google and Azure) for Disaster Recovery, retention policies to ensure compliance, and automated alerts and reporting.
Whether you are looking at rebuilding your existing backup infrastructure, or updating it, this webinar is for you!
AGENDA
- Backup and recovery management of local or remote databases
- Logical or physical backups
- Full or Incremental backups
- Position or time-based Point in Time Recovery (for MySQL and PostgreSQL)
- Upload to the cloud (Amazon S3, Google Cloud Storage, Azure Storage)
- Encryption of backup data
- Compression of backup data
- One centralized backup system for your open source databases (Demo)
- Schedule, manage and operate backups
- Define backup policies, retention, history
- Validation - Automatic restore verification
- Backup reporting
SPEAKER
Bartlomiej Oles, Senior Support Engineer at Severalnines, is a MySQL and Oracle DBA, with over 15 years experience in managing highly available production systems at IBM, Nordea Bank, Acxiom, Lufthansa, and other Fortune 500 companies. In the past five years, his focus has been on building and applying automation tools to manage multi-datacenter database environments.
Disaster Recovery Planning for MySQL & MariaDBSeveralnines
Bart Oles - Severalnines AB
Organizations need an appropriate disaster recovery plan to mitigate the impact of downtime. But how much should a business invest? Designing a highly available system comes at a cost, and not all businesses and indeed not all applications need five 9's availability.
We will explain fundamental disaster recovery concepts and walk you through the relevant options from the MySQL & MariaDB ecosystem to meet different tiers of disaster recovery requirements, and demonstrate how to automate an appropriate disaster recovery plan.
Krzysztof Ksiazek - Severalnines AB
So, you are a developer or sysadmin and showed some abilities in dealing with databases issues. And now, you have been elected to the role of DBA. And as you start managing the databases, you wonder…
* How do I tune them to make best use of the hardware?
* How do I optimize the Operating System?
* How do I best configure MySQL or MariaDB for a specific database workload?
If you're asking yourself the following questions when it comes to optimally running your MySQL or MariaDB databases, then this talk is for you!
We will discuss some of the settings that are most often tweaked and which can bring you significant improvement in the performance of your MySQL or MariaDB database. We will also cover some of the variables which are frequently modified even though they should not.
Performance tuning is not easy, especially if you're not an experienced DBA, but you can go a surprisingly long way with a few basic guidelines.
Performance Tuning Cheat Sheet for MongoDBSeveralnines
Bart Oles - Severalnines AB
Database performance affects organizational performance, and we tend to look for quick fixes when under stress. But how can we better understand our database workload and factors that may cause harm to it? What are the limitations in MongoDB that could potentially impact cluster performance?
In this talk, we will show you how to identify the factors that limit database performance. We will start with the free MongoDB Cloud monitoring tools. Then we will move on to log files and queries. To be able to achieve optimal use of hardware resources, we will take a look into kernel optimization and other crucial OS settings. Finally, we will look into how to examine performance of MongoDB replication.
Advanced MySql Data-at-Rest Encryption in Percona ServerSeveralnines
Iwo Panowicz - Percona & Bart Oles - Severalnines AB
The purpose of the talk is to present data-at-rest encryption implementation in Percona Server for MySQL.
Differences between Oracle's MySQL and MariaDB implementation.
- How it is implemented?
- What is encrypted:
- Tablespaces?
- General tablespace?
- Double write buffer/parallel double write buffer?
- Temporary tablespaces? (KEY BLOCKS)
- Binlogs?
- Slow/general/error logs?
- MyISAM? MyRocks? X?
- Performance overhead.
- Backups?
- Transportable tablespaces. Transfer key.
- Plugins
- Keyrings in general
- Key rotation?
- General-Purpose Keyring Key-Management Functions
- Keyring_file
- Is useful? How to make it profitable?
- Keyring Vault
- How does it work?
- How to make a transition from keyring_file
Polyglot Persistence Utilizing Open Source Databases as a Swiss Pocket KnifeSeveralnines
Art Van Scheppingen - vidaXL & Bart Oles - Severalnines AB
Over the past few years, VidaXL has become a European market leader in the online retail of slow moving consumer goods. When a company achieved over 50% year over year growth for the past 9 years, there is hardly enough time to overhaul existing systems. This means existing systems will be stretched to the maximum of their capabilities, and often additional performance will be gained by utilizing a large variety of datastores.
Polyglot persistence reigns in rapidly growing environments and the traditional one-size-fits-all strategy of monoglots is over.
VidaXL has a broad landscape of datastores, ranging from traditional SQL data stores, like MySQL or PostgreSQL alongside more recent load balancing technologies such as ProxySQL, to document stores like MongoDB and search engines such as SOLR and Elasticsearch.
Webinar slides: Free Monitoring (on Steroids) for MySQL, MariaDB, PostgreSQL ...Severalnines
Traditional server monitoring tools are not built for modern distributed database architectures. Let’s face it, most production databases today run in some kind of high availability setup - from simpler master-slave replication to multi-master clusters fronted by redundant load balancers. Operations teams deal with dozens, often hundreds of services that make up the database environment.
This is why we built ClusterControl - to address modern, highly distributed database setups based on replication or clustering. We wanted something that could provide a systems view of all the components of a distributed cluster, including load balancers.
Watch this replay of a webinar on free database monitoring using ClusterControl Community Edition. We show you how to monitor all your MySQL, MariaDB, PostgreSQL and MongoDB systems from a single point of control - whether they are deployed as Galera Clusters, sharded clusters or replication setups across on-prem and cloud data centers. We also see how to use Advisors in order to improve performance.
AGENDA
- Requirements for monitoring distributed database systems
- Cloud-based vs On-prem monitoring solutions
- Agent-based vs Agentless monitoring
- Deepdive into ClusterControl Community Edition
- Architecture
- Metrics Collection
- Trending
- Dashboards
- Queries
- Performance Advisors
- Other features available to Community users
SPEAKER
Bartlomiej Oles is a MySQL and Oracle DBA, with over 15 years experience in managing highly available production systems at IBM, Nordea Bank, Acxiom, Lufthansa, and other Fortune 500 companies. In the past five years, his focus has been on building and applying automation tools to manage multi-datacenter database environments.
Webinar slides: An Introduction to Performance Monitoring for PostgreSQLSeveralnines
To operate PostgreSQL efficiently, you need to have insight into database performance and make sure it is at optimal levels.
With that in mind, we dive into monitoring PostgreSQL for performance in this webinar replay.
PostgreSQL offers many metrics through various status overviews and commands, but which ones really matter to you? How do you trend and alert on them? What is the meaning behind the metrics? And what are some of the most common causes for performance problems in production?
We discuss this and more in ordinary, plain DBA language. We also have a look at some of the tools available for PostgreSQL monitoring and trending; and we’ll show you how to leverage ClusterControl’s PostgreSQL metrics, dashboards, custom alerting and other features to track and optimize the performance of your system.
AGENDA
- PostgreSQL architecture overview
- Performance problems in production
- Common causes
- Key PostgreSQL metrics and their meaning
- Tuning for performance
- Performance monitoring tools
- Impact of monitoring on performance
- How to use ClusterControl to identify performance issues
- Demo
SPEAKER
Sebastian Insausti, Support Engineer at Severalnines, has loved technology since his childhood, when he did his first computer course (Windows 3.11). And from that moment he was decided on what his profession would be. He has since built up experience with MySQL, PostgreSQL, HAProxy, WAF (ModSecurity), Linux (RedHat, CentOS, OL, Ubuntu server), Monitoring (Nagios), Networking and Virtualization (VMWare, Proxmox, Hyper-V, RHEV).
Prior to joining Severalnines, Sebastian worked as a consultant to state companies in security, database replication and high availability scenarios. He’s also a speaker and has given a few talks locally on InnoDB Cluster and MySQL Enterprise together with an Oracle team. Previous to that, he worked for a Mexican company as chief of sysadmin department as well as for a local ISP (Internet Service Provider), where he managed customers' servers and connectivity.
This webinar builds upon a related blog post by Sebastian: https://severalnines.com/blog/performance-cheat-sheet-postgresql.
Mitigating the Impact of State Management in Cloud Stream Processing SystemsScyllaDB
Stream processing is a crucial component of modern data infrastructure, but constructing an efficient and scalable stream processing system can be challenging. Decoupling compute and storage architecture has emerged as an effective solution to these challenges, but it can introduce high latency issues, especially when dealing with complex continuous queries that necessitate managing extra-large internal states.
In this talk, we focus on addressing the high latency issues associated with S3 storage in stream processing systems that employ a decoupled compute and storage architecture. We delve into the root causes of latency in this context and explore various techniques to minimize the impact of S3 latency on stream processing performance. Our proposed approach is to implement a tiered storage mechanism that leverages a blend of high-performance and low-cost storage tiers to reduce data movement between the compute and storage layers while maintaining efficient processing.
Throughout the talk, we will present experimental results that demonstrate the effectiveness of our approach in mitigating the impact of S3 latency on stream processing. By the end of the talk, attendees will have gained insights into how to optimize their stream processing systems for reduced latency and improved cost-efficiency.
Comparison Table of DiskWarrior Alternatives.pdfAndrey Yasko
To help you choose the best DiskWarrior alternative, we've compiled a comparison table summarizing the features, pros, cons, and pricing of six alternatives.
Advanced Techniques for Cyber Security Analysis and Anomaly DetectionBert Blevins
Cybersecurity is a major concern in today's connected digital world. Threats to organizations are constantly evolving and have the potential to compromise sensitive information, disrupt operations, and lead to significant financial losses. Traditional cybersecurity techniques often fall short against modern attackers. Therefore, advanced techniques for cyber security analysis and anomaly detection are essential for protecting digital assets. This blog explores these cutting-edge methods, providing a comprehensive overview of their application and importance.
Are you interested in dipping your toes in the cloud native observability waters, but as an engineer you are not sure where to get started with tracing problems through your microservices and application landscapes on Kubernetes? Then this is the session for you, where we take you on your first steps in an active open-source project that offers a buffet of languages, challenges, and opportunities for getting started with telemetry data.
The project is called openTelemetry, but before diving into the specifics, we’ll start with de-mystifying key concepts and terms such as observability, telemetry, instrumentation, cardinality, percentile to lay a foundation. After understanding the nuts and bolts of observability and distributed traces, we’ll explore the openTelemetry community; its Special Interest Groups (SIGs), repositories, and how to become not only an end-user, but possibly a contributor.We will wrap up with an overview of the components in this project, such as the Collector, the OpenTelemetry protocol (OTLP), its APIs, and its SDKs.
Attendees will leave with an understanding of key observability concepts, become grounded in distributed tracing terminology, be aware of the components of openTelemetry, and know how to take their first steps to an open-source contribution!
Key Takeaways: Open source, vendor neutral instrumentation is an exciting new reality as the industry standardizes on openTelemetry for observability. OpenTelemetry is on a mission to enable effective observability by making high-quality, portable telemetry ubiquitous. The world of observability and monitoring today has a steep learning curve and in order to achieve ubiquity, the project would benefit from growing our contributor community.
The DealBook is our annual overview of the Ukrainian tech investment industry. This edition comprehensively covers the full year 2023 and the first deals of 2024.
Quality Patents: Patents That Stand the Test of TimeAurora Consulting
Is your patent a vanity piece of paper for your office wall? Or is it a reliable, defendable, assertable, property right? The difference is often quality.
Is your patent simply a transactional cost and a large pile of legal bills for your startup? Or is it a leverageable asset worthy of attracting precious investment dollars, worth its cost in multiples of valuation? The difference is often quality.
Is your patent application only good enough to get through the examination process? Or has it been crafted to stand the tests of time and varied audiences if you later need to assert that document against an infringer, find yourself litigating with it in an Article 3 Court at the hands of a judge and jury, God forbid, end up having to defend its validity at the PTAB, or even needing to use it to block pirated imports at the International Trade Commission? The difference is often quality.
Quality will be our focus for a good chunk of the remainder of this season. What goes into a quality patent, and where possible, how do you get it without breaking the bank?
** Episode Overview **
In this first episode of our quality series, Kristen Hansen and the panel discuss:
⦿ What do we mean when we say patent quality?
⦿ Why is patent quality important?
⦿ How to balance quality and budget
⦿ The importance of searching, continuations, and draftsperson domain expertise
⦿ Very practical tips, tricks, examples, and Kristen’s Musts for drafting quality applications
https://www.aurorapatents.com/patently-strategic-podcast.html
YOUR RELIABLE WEB DESIGN & DEVELOPMENT TEAM — FOR LASTING SUCCESS
WPRiders is a web development company specialized in WordPress and WooCommerce websites and plugins for customers around the world. The company is headquartered in Bucharest, Romania, but our team members are located all over the world. Our customers are primarily from the US and Western Europe, but we have clients from Australia, Canada and other areas as well.
Some facts about WPRiders and why we are one of the best firms around:
More than 700 five-star reviews! You can check them here.
1500 WordPress projects delivered.
We respond 80% faster than other firms! Data provided by Freshdesk.
We’ve been in business since 2015.
We are located in 7 countries and have 22 team members.
With so many projects delivered, our team knows what works and what doesn’t when it comes to WordPress and WooCommerce.
Our team members are:
- highly experienced developers (employees & contractors with 5 -10+ years of experience),
- great designers with an eye for UX/UI with 10+ years of experience
- project managers with development background who speak both tech and non-tech
- QA specialists
- Conversion Rate Optimisation - CRO experts
They are all working together to provide you with the best possible service. We are passionate about WordPress, and we love creating custom solutions that help our clients achieve their goals.
At WPRiders, we are committed to building long-term relationships with our clients. We believe in accountability, in doing the right thing, as well as in transparency and open communication. You can read more about WPRiders on the About us page.
RPA In Healthcare Benefits, Use Case, Trend And Challenges 2024.pptxSynapseIndia
Your comprehensive guide to RPA in healthcare for 2024. Explore the benefits, use cases, and emerging trends of robotic process automation. Understand the challenges and prepare for the future of healthcare automation
Transcript: Details of description part II: Describing images in practice - T...BookNet Canada
This presentation explores the practical application of image description techniques. Familiar guidelines will be demonstrated in practice, and descriptions will be developed “live”! If you have learned a lot about the theory of image description techniques but want to feel more confident putting them into practice, this is the presentation for you. There will be useful, actionable information for everyone, whether you are working with authors, colleagues, alone, or leveraging AI as a collaborator.
Link to presentation recording and slides: https://bnctechforum.ca/sessions/details-of-description-part-ii-describing-images-in-practice/
Presented by BookNet Canada on June 25, 2024, with support from the Department of Canadian Heritage.
How Social Media Hackers Help You to See Your Wife's Message.pdfHackersList
In the modern digital era, social media platforms have become integral to our daily lives. These platforms, including Facebook, Instagram, WhatsApp, and Snapchat, offer countless ways to connect, share, and communicate.
Understanding Insider Security Threats: Types, Examples, Effects, and Mitigat...Bert Blevins
Today’s digitally connected world presents a wide range of security challenges for enterprises. Insider security threats are particularly noteworthy because they have the potential to cause significant harm. Unlike external threats, insider risks originate from within the company, making them more subtle and challenging to identify. This blog aims to provide a comprehensive understanding of insider security threats, including their types, examples, effects, and mitigation techniques.
Details of description part II: Describing images in practice - Tech Forum 2024BookNet Canada
This presentation explores the practical application of image description techniques. Familiar guidelines will be demonstrated in practice, and descriptions will be developed “live”! If you have learned a lot about the theory of image description techniques but want to feel more confident putting them into practice, this is the presentation for you. There will be useful, actionable information for everyone, whether you are working with authors, colleagues, alone, or leveraging AI as a collaborator.
Link to presentation recording and transcript: https://bnctechforum.ca/sessions/details-of-description-part-ii-describing-images-in-practice/
Presented by BookNet Canada on June 25, 2024, with support from the Department of Canadian Heritage.
Details of description part II: Describing images in practice - Tech Forum 2024
Severalnines Self-Training: MySQL® Cluster - Part II
1. MySQL Cluster Training
presented by severalnines.com
Address:
Contact: SeveralninesAB
Jean-Jérôme Schmidt c/o SICS, Box 1263
Email: services@severalnines.com Isafjordsgatan22
SE-164-29 Kista
Copyright 2011 Severalnines AB Control your database infrastructure 1
2. Introduction
• At Severalnines, we believe in sharing information
and knowledge; we all come from an open source
background
• We know a lot of things about MySQL Cluster and
think that MySQL Cluster is a great technology
• These free MySQL Cluster Training slides are a
contribution of ours to the knowledge and information
sharing that‟s common practice in the open source
community
• If you have any questions on these slides or would
like to book an actual training class, please contact
us at: services@severalnines.com
Copyright 2011 Severalnines AB Control your database infrastructure 2
3. Training Slides - Concept
• Over the coming weeks we will be chronologically
releasing slides for the different sections of our
MySQL Cluster Training program on our website.
• The full agenda of the training with all of its modules
is outlined in the next slides so that you can see what
topics will be covered over the coming weeks.
• Particularly specialised topics such as Cluster/J or
NDB API are not fully covered in the slides. We
recommend our instructor-led training classes for
such topics.
• Please contact us for more details:
services@severalnines.com
Copyright 2011 Severalnines AB Control your database infrastructure 3
4. Full Training Agenda (1/4)
• MySQL Cluster Introduction
– MySQL eco system
– Scale up, scale out, and sharding
– MySQL Cluster Architecture
– Use cases
– Features
– Node types and Roles
• Detailed Concepts
– Data Distribution
– Verifying data distribution
– Access Methods
– Partitioning
– Node failures and failure detection
– Network Partitioning
– Transactions and Locking
– Consistency Model
– Redo logging and Checkpointing
Copyright 2011 Severalnines AB Control your database infrastructure 4
5. Agenda (2/4)
• Installing MySQL Cluster
– Setting up MySQL Cluster
– Starting/stopping nodes
– Recovery and restarts
– Upgrading configuration
– Upgrading Cluster
• Performance Tuning (instructor-led only; contact us at services@severalnines.com)
– Differences compared to Innodb/MyISAM
– Designing efficient and fast applications
– Identifying bottlenecks
– Tweaking configuration (OS and MySQL Cluster)
– Query Tuning
– Schema Design
– Index Tuning
Copyright 2011 Severalnines AB Control your database infrastructure 5
6. Agenda (3/4)
• Management and Administration
– Backup and Restore
– Geographical Replication
– Online and offline operations
– Ndbinfo tables
– Reporting
– Single user mode
– Scaling Cluster
• Disk Data
– Use cases
– Limitations
– Best practice configuration
• Designing a Cluster
– Capacity Planning and Dimensioning
– Hardware recommendations
– Best practice Configuration
– Storage calculations
Copyright 2011 Severalnines AB Control your database infrastructure 6
7. Agenda (4/4)
• Resolving Issues
– Common problems
– Error logs and Tracefiles
– Recovery and Escalation procedures
• Connectivity Overview
– NDBAPI
– Cluster/J
– LDAP
• Severalnines Tools
– Monitoring and Management
– Benchmarking
– Sandboxes
– Configuration and capacity planning
• Conclusion
Copyright 2011 Severalnines AB Control your database infrastructure 7
8. Agenda: Lab Exercises
(only applicable to instructor-led training classes)
• Lab Exercises
– Installing and Loading data into MySQL Cluster
– Starting/stopping nodes, recovery
– Query tuning
– Backup and Restore
– Configuration Upgrade
• Would you like to try something particular?
– This is possible too, speak with your instructor
Copyright 2011 Severalnines AB Control your database infrastructure 8
9. Prerequisites
• Readers / Participants have understanding of SQL and basic database concepts.
• Laptops/PCs for hands-on exercises
• Linux: 1GB RAM
• Windows: 2GB RAM
• Approx. 20GB disk space and Virtualbox installed.
• Virtualbox can be downloaded for free at http://www.virtualbox.org/wiki/Downloads
• MySQL Cluster version 7.1 or later
Copyright 2011 Severalnines AB Control your database infrastructure 9
10. Part 2
Section 2: Detailed Concepts
Copyright 2011 Severalnines AB Control your database infrastructure 10
11. Topics covered in Part 2
• Data Distribution & Partitioning
• Two Phase Commit Protocol
• Transaction Resources
Copyright 2011 Severalnines AB Control your database infrastructure 11
12. Data Distribution and Partitioning
Copyright 2011 Severalnines AB Control your database infrastructure 12
13. MySQL Cluster Architecture
Application Application Application
R/I/U/D R/I/U/D R/I/U/D
Java, C++, LDAP
Application
R/I/U/D
Native API
DATA DATA
NODE NODE
Management
Management
Server
DATA DATA
Server
NODE NODE
Copyright 2011 Severalnines AB Control your database infrastructure 13
14. Data Distribution
• MySQL Cluster automatically partitions tables and
distributes the data on the partitions.
– It is possible to use user-defined partitioning.
• A table is divided into as many partitions as you have
data nodes and data is “striped” on the partitions.
• Hashing of the Primary Key determines the Partition
that should hold the data - automatic distribution.
• It is possible to hash on part of the primary key –
great for sharding and locality of data!
Copyright 2011 Severalnines AB Control your database infrastructure 14
15. Partitioning and Data Distribution
• With two data nodes, data node 1 and data node 2,
each table is divided into two Partitions.
• Subidis the Primary Key.
• Hashing on the Primary Key (subid) determines the
Partition. It is also possible to hash on part of the PK.
– Odd PKs Green
– Even PKs Red
STORAGE LAYER
subid data
DATA DATA
NODE 1 NODE 2 1 A Partition 0
3 B
2 C Partition 1
P0 P1 4 D
Copyright 2011 Severalnines AB Control your database infrastructure 15
16. Replicas
• To provide for redundancy and fast failover partitions
are synchronouslyreplicated.
• Two replicas (two copies of data) is most common
– it is possible to have one (previous slide), two, three and four
replicas.
– NoOfReplicas=2
STORAGE LAYER
DATA DATA
NODE 1 NODE 2
P0 S0
Copyright 2011 Severalnines AB Control your database infrastructure 16
17. Replicas
• To provide for redundancy and fast failover partitions
are synchronouslyreplicated from a PRIMARY to a
SECONDARY partition.
– When a change ( ) is made on P0 it is synchronously
replicated to S0.
– The change is persisted at transaction COMMIT.
– Either both P0 or S0 is update or NOTHING AT ALL
STORAGE LAYER
DATA DATA
NODE 1 NODE 2
P0 S0
Copyright 2011 Severalnines AB Control your database infrastructure 17
18. Data Distribution - disk logging
• After the COMMIT, the data is in main memory.
– But changes are REDO LOGGED, but the REDO LOG is
synced to disk every xth ms (1000 ms is recommended).
• Controlled by TimeBetweenGlobalCheckpoints
• Similar to innodb-flush-log-at-trx_commit=2
– The data is also checkpointed to disk.
• More on this later.
• The disk logging makes it possible to recovery a
completely failed cluster.
Copyright 2011 Severalnines AB Control your database infrastructure 18
19. Replicas
• To provide for redundancy and fast failover partitions
are synchronouslyreplicated.
• Two replicas (two copies of data) is most common
– it is possible to have one (previous slide), two, three and four
replicas.
– NoOfReplicas=2
STORAGE LAYER
subid data
DATA DATA
NODE 1 NODE 2 1 A Partition 0
3 B
2 C Partition 1
P0 P1
4 D
S1 S0
Px == PRIMARY Partition x
Sx == SECONDARY Partition x
Copyright 2011 Severalnines AB Control your database infrastructure 19
20. Node groups
• Data Nodes sharing the same data data belongs to a
node group.
• A node group contains as many nodes as you have
replicas (NoOfReplicas=2 is used in the picture
below).
STORAGE LAYER
subid data
DATA DATA
NODE 1 NODE 2 1 A Partition 0
3 B
2 C Partition 1
P0 P1
4 D
S1 S0
Node group 0 Px == PRIMARY Partition x
Sx == SECONDARY Parttionx
Copyright 2011 Severalnines AB Control your database infrastructure 20
21. Two Replicas – Four Data Nodes
• Four data nodes – four partitions – two replicas
• Four data nodes and two replicas two node groups
– No of node groups = #data nodes / #replicas
STORAGE LAYER subid data
1 A
Partition 0
2 B
DATA DATA DATA DATA
NODE 1 NODE 2 NODE 3 NODE 4 3 C
Partition 1
4 D
P0 P1 P2 P3 5 E
Partition 2
6 F
S1 S0 S3 S2
7 G
Partition 3
Node group 0 Node group 1 8 H
Px == PRIMARY Partition x
Sx == SECONDARY Parttionx
Copyright 2011 Severalnines AB Control your database infrastructure 21
22. Three Replicas – Three Data Nodes
• Three data nodes – Three partitions
– More replicas gives slower writes.
• Three data nodes and three replicas one node
group. This is not common.
– Two replicas is common practice/best practice
STORAGE LAYER
DATA DATA DATA subid data
NODE 1 NODE 2 NODE 3
1 A Partition 0
2 B
P0 P1 P2 3 C Partition 1
S1 S0 S0 4 D
S2 S2 S1 5 E Partition
6 F 2
Node group 0
Px == PRIMARY Partition x
Sx == SECONDARY
Parttionx
Copyright 2011 Severalnines AB Control your database infrastructure 22
23. Recommendations
• Two Replicas recommended - gives best tradeoff
between Performance and Availability
• Three Replicas (or Four) will give slower writes (, is
less tested (not so many deployments), and less
deployments are made with this.
• Cost of write (approx)
– 1 replica (no redundancy): cost X
– 2 replicas: cost 2X
– 3 replicas: cost 3X
Copyright 2011 Severalnines AB Control your database infrastructure 23
24. Verifying Data Distribution
• A helper program called ndb_desc shows how many
records are in each partition:
ndb_desc –c<mgmt_host:1186> –d<database>
-p<tablename>
Copyright 2011 Severalnines AB Control your database infrastructure 24
25. Two Phase Commit Protocol
Copyright 2011 Severalnines AB Control your database infrastructure 25
26. View of the Data Node
• Each node has as active Transaction Coordinator
(TC).
– Every Transaction starts at the TC
– One transaction consists of one or more Operations.
• Operation is SELECT, INSERT, UPDATE, DELETE
• Each node has 1-4 Local Query Handlers (LQH)
– Executes the operations
TC
• ACCess stores a hash table
LQH
– Primary Key and Unique
• TUPle stores data records ACC TUP
– ACC hash index links to record in TUP
Copyright 2011 Severalnines AB Control your database infrastructure 26
27. Two Phase Commit Protocol
• 2PC facilitates the synchronous replication
– To safeguard that both Primary and Secondary Partitions are
modified in a Consistent Way
– Locking (Row level)
• 2PC consists of two phases
– Prepare Phase
• Grab locks
• Make a update to a shadow copy
– Commit Phase
• Make the shadow copy the real copy
• Release locks
• 2PC protocol is only involved in
– Update, Delete, Insert
• Reads are not 2PC (would be very slow and
pointless)
Copyright 2011 Severalnines AB Control your database infrastructure 27
28. Two Phase Commit Protocol
• INSERT INTO t1(id, data) VALUES (1, „hello‟)
– Two data nodes - PK hashes to Primary P0.
– The same applies to UPDATES and DELETEs
TC TC
LQH LQH
ACC TUP ACC TUP
P0 P0 S0 S0
IndexMemory DataMemory IndexMemory DataMemory
DATA NODE 1 DATA NODE 2
Copyright 2011 Severalnines AB Control your database infrastructure 28
29. Phase 1 - Prepare Phase
• INSERT INTO t1(id, data) VALUES (1, „hello‟)
• The protocol starts at the TC that has the Primary
Partition for the PK
TC TC
LQH LQH
ACC TUP ACC TUP
P0 P0 S0 S0
IndexMemory DataMemory IndexMemory DataMemory
DATA NODE 1 DATA NODE 2
Copyright 2011 Severalnines AB Control your database infrastructure 29
30. Phase 1 - Prepare Phase
• TC starts by calculating a hash (md5sum) on the
Entire Primary key.
– md5sum(PK)
– This gives 128 bit hash value, divided up in 2 x 64-bit
INDEX_HASH PARTITION_HASH
– Actually further calculations are made
• PARTITION= PARTITION_HASH % NO_OF_PARTITIONS
• INDEX_POS=INDEX_HASH % NO_OF_BUCKETS
– LH*3 Algorithm is what is really being used.
• Now MySQL Cluster will know what nodes and
partitions are involved.
• INSERT INTO t1(id, data) VALUES (1, „hello‟)
– INDEX_POS=23
– PARTITION=P0
Copyright 2011 Severalnines AB Control your database infrastructure 30
31. Phase 1 - Prepare Phase
• INSERT INTO t1(id, data) VALUES (1, „hello‟)
• Prepare on the local LQH
TC TC
LQH LQH
ACC TUP ACC TUP
P0 P0 S0 S0
IndexMemory DataMemory IndexMemory DataMemory
DATA NODE 1 DATA NODE 2
Copyright 2011 Severalnines AB Control your database infrastructure 31
32. Phase 1 - Prepare Phase
• Insert into the hash table in ACC and write record in
TUP (allocate space for the record).
– The Index Entry is locked now
TC TC
PREPARE
LQH LQH
ACC TUP ACC TUP
P0 P0 S0 S0
1 hello
POS=23
IndexMemory DataMemory IndexMemory DataMemory
DATA NODE 1 DATA NODE 2
Copyright 2011 Severalnines AB Control your database infrastructure 32
33. Phase 1 - Prepare Phase
• Send PREPARE message to the other LQH for the
secondary Partition (S0), and do exactly the same
thing.
TC TC
PREPARE
PREPARE
LQH LQH
ACC TUP ACC TUP
P0 P0 S0 S0
1 hello 1 hello
IndexMemory DataMemory IndexMemory DataMemory
DATA NODE 1 DATA NODE 2
Copyright 2011 Severalnines AB Control your database infrastructure 33
34. Phase 1 - Prepare Phase
• Send back PREPARE OK to TC
TC PREPARE OK TC
PREPARE
PREPARE
LQH LQH
ACC TUP ACC TUP
P0 P0 S0 S0
1 hello 1 hello
IndexMemory DataMemory IndexMemory DataMemory
DATA NODE 1 DATA NODE 2
Copyright 2011 Severalnines AB Control your database infrastructure 34
35. Phase 2 - Commit Phase
• Send COMMIT message to REMOTE LQH first
– Release locks, simplifies error handling, ops waiting on lock
can resume faster.
TC COMMIT TC
LQH LQH
ACC TUP ACC TUP
P0 P0 S0 S0
1 hello 1 hello
IndexMemory DataMemory IndexMemory DataMemory
DATA NODE 1 DATA NODE 2
Copyright 2011 Severalnines AB Control your database infrastructure 35
36. Phase 2 - Commit Phase
• Send COMMIT to LQH of P0
– Release locks
TC COMMIT TC
COMMIT
LQH LQH
ACC TUP ACC TUP
P0 P0 S0 S0
1 hello 1 hello
IndexMemory DataMemory IndexMemory DataMemory
DATA NODE 1 DATA NODE 2
Copyright 2011 Severalnines AB Control your database infrastructure 36
37. Phase 2 - Commit Phase
• Send COMMIT OK to TC
TC COMMIT TC
COMMIT OK
COMMIT
LQH LQH
ACC TUP ACC TUP
P0 P0 S0 S0
1 hello 1 hello
IndexMemory DataMemory IndexMemory DataMemory
DATA NODE 1 DATA NODE 2
Copyright 2011 Severalnines AB Control your database infrastructure 37
38. Phase 2 - Commit Phase
• Send COMMIT ACK to application
COMMIT ACK
TC COMMIT TC
COMMIT OK
COMMIT
LQH LQH
ACC TUP ACC TUP
P0 P0 S0 S0
1 hello 1 hello
IndexMemory DataMemory IndexMemory DataMemory
DATA NODE 1 DATA NODE 2
Copyright 2011 Severalnines AB Control your database infrastructure 38
39. Failure Handling
• If the Transaction Coordinator fails another TC will
take over.
• The new TC will ask the nodes “Send me a list of
outstanding transactions from the failed TC”
• The new TC will
– ABORT transactions in the Prepare Phase
– Force COMMIT of transactions IFF another node has seen a
COMMIT message.
• The Node that has failed will get the changes when it recovers.
Copyright 2011 Severalnines AB Control your database infrastructure 39
40. Transaction Timers
• Deadlock detection – waiting for lock
– If a transaction is waiting too long time for a lock it is aborted
• TransactionDeadLockDetectionTimeout=3000 [ms]
• Inactive Transactions – holding a lock
– If a transaction is holding a lock too long it is aborted
• TransactionInactiveTimeout=60000 [ms]
– Never set TransactioInactiveTimeout=0
Copyright 2011 Severalnines AB Control your database infrastructure 40
41. Locking
• Committed Read Isolation level is used
• This means that a transaction
– Will read last committed data unless it has itself modified this
data.
• Locks are acquired in the Prepare Phase and
released in the Commit Phase.
Copyright 2011 Severalnines AB Control your database infrastructure 41
43. Transaction and Operation Records
• Each transaction requires on Transaction Record
(TR)
– When it was started
– Controlled by MaxNoOfConcurrentTransactions
• Also each Operation requires one Operation Record
(OR) in TC and one Local Operation Record (LOR)
in LQH
– What transaction it belongs to
– Operation Type
– Controlled by MaxNoOfConcurrentOperations
– and MaxNoOfLocalOperations
Copyright 2011 Severalnines AB Control your database infrastructure 43
44. Transaction and Operation Records
• Assume
– MaxNoOfConcurrentTransactions=3
– MaxNoOfConcurrentOperations=3
– MaxNoOfLocalOperations=4
• By default there are 10% more Local Ops than Conc Ops.
• Query
– INSERT INTO t1 (id,data) VALUES(1,‟x‟);
• One transaction
• One operation
Copyright 2011 Severalnines AB Control your database infrastructure 44
45. Transaction Starts (prepare phase)
• INSERT INTO t1 (id,data) VALUES(1,‟x‟);
TR
TC TC
OR
PREPARE
PREPARE
LOR LQH LQH LOR
ACC TUP ACC TUP
P0 P0 S0 S0
IndexMemory DataMemory IndexMemory DataMemory
DATA NODE 1 DATA NODE 2
Copyright 2011 Severalnines AB Control your database infrastructure 45
46. Transaction Starts (prepare phase)
• Allocate a Transaction Record at TC
TR
TC TC
OR
PREPARE
PREPARE
LOR LQH LQH LOR
ACC TUP ACC TUP
P0 P0 S0 S0
IndexMemory DataMemory IndexMemory DataMemory
DATA NODE 1 DATA NODE 2
Copyright 2011 Severalnines AB Control your database infrastructure 46
47. Transaction Starts (prepare phase)
• Allocate a Operation Record at TC
TR
TC TC
OR
PREPARE
PREPARE
LOR LQH LQH LOR
ACC TUP ACC TUP
P0 P0 S0 S0
IndexMemory DataMemory IndexMemory DataMemory
DATA NODE 1 DATA NODE 2
Copyright 2011 Severalnines AB Control your database infrastructure 47
48. Transaction Starts (prepare phase)
• Allocate a Local Operation Record at LQH
TR
TC TC
OR
PREPARE
PREPARE
LOR LQH LQH LOR
ACC TUP ACC TUP
P0 P0 S0 S0
IndexMemory DataMemory IndexMemory DataMemory
DATA NODE 1 DATA NODE 2
Copyright 2011 Severalnines AB Control your database infrastructure 48
49. Transaction Starts (prepare phase)
• With many parallel transactions
TR TR
TC TC
OR OR
PREPARE
PREPARE
LOR LQH LQH LOR
ACC TUP ACC TUP
P0 P0 S0 S0
IndexMemory DataMemory IndexMemory DataMemory
DATA NODE 1 DATA NODE 2
Copyright 2011 Severalnines AB Control your database infrastructure 49
50. Transaction Starts (prepare phase)
• Wrongly dimensioned for failover
• Not enough TRs / ORs
TR TR
TC TC
OR OR
PREPARE
PREPARE
LOR LQH LQH LOR
ACC TUP ACC TUP
P0 P0 S0 S0
IndexMemory DataMemory IndexMemory DataMemory
DATA NODE 1 DATA NODE 2
Copyright 2011 Severalnines AB Control your database infrastructure 50
51. Transaction and Operation Records
• Define
– MaxNoOfConcurrentTransactions= 2 x<max_threads>
– MaxNoOfConcurrentOperations=
MaxConcurrentTransactionsx<ops in trans>
– MaxNoOfLocalOperations=1.1 x
MaxNoOfConcurrentOperations
• 1.1x is by default
• Seldom needed to change this.
Copyright 2011 Severalnines AB Control your database infrastructure 51
52. Coming next in Part 3:
Detailed Concepts
Access Methods
Redo Logging and Check-pointing
Recovery
Node Failures and Error Detection
Network Partitioning
Copyright 2011 Severalnines AB Control your database infrastructure 52
53. We hope these training slides are
useful to you!
Please visit our website to view the
next section of this training.
For any questions, comments, feedback or to
book a training class, please contact us at:
services@severalnines.com
Thank you!
Copyright 2011 Severalnines AB Control your database infrastructure 53
Dear Jury, Just as the electric grid revolutionized access to electricity 100 years ago, we at Severalnines believe that Cloud Computing will revolutionize IT where organizations will be able to plug into extremely powerful computing resources over the network. We have already seen the beginnings of this new wave, where the current infrastructure stack is being challenged and disrupted by a whole set of new technologies. For instance, in the database market, over 40 startups have received funding over the past 18 months. Severalnines is not building yet another database product, we believe there are already a lot of good technologies available. To manage a database costs 4 times the purchase price, and yet, very few companies are addressing this problem. Severalnines focuses on solutions to address this underserved segment. The founders of the company have a solid background in databases, having been at MySQL since 2003. The company develops a management platform which is database and cloud agnostic.We are database independent since we do not know who, if anybody, will be the next MySQL of the cloud.We are cloud independent, since we do not want to depend on any cloud vendor (e.g. Amazon or Rackspace) to avoid vendor lock-in. After the Amazon EC2 downtime during the Easter break, hundreds of affected companies have realized the importance of this. There is also a commercial aspect for avoiding vendor lock-in. Severalnines enhances productivity of organizations by attacking the biggest cost associated with database systems. We are a Swedish startup, hosted by SICS in Kista. There is also a small but very efficient development capacity in Singapore. Just as MySQL became a major brand and placed Sweden on the global software infrastructure map, we believe Severalnines can become a serious global player in the emerging Cloud space. We are very thankful that an organization like Eurocloud exists, and would like to thank the jury for considering our application. Kind regards,Vinay Joosery Severalnines AB
Severalnines has been offering its products free of charge since 2007, while the founders were employed at MySQL. These products are the de-facto standard tools to assist MySQL customers and users in deploying their MySQL clusters. More information about Severalnines at www.severalnines.com
Severalnines has been offering its products free of charge since 2007, while the founders were employed at MySQL. These products are the de-facto standard tools to assist MySQL customers and users in deploying their MySQL clusters. More information about Severalnines at www.severalnines.com
Severalnines has been offering its products free of charge since 2007, while the founders were employed at MySQL. These products are the de-facto standard tools to assist MySQL customers and users in deploying their MySQL clusters. More information about Severalnines at www.severalnines.com
Severalnines has been offering its products free of charge since 2007, while the founders were employed at MySQL. These products are the de-facto standard tools to assist MySQL customers and users in deploying their MySQL clusters. More information about Severalnines at www.severalnines.com
Severalnines has been offering its products free of charge since 2007, while the founders were employed at MySQL. These products are the de-facto standard tools to assist MySQL customers and users in deploying their MySQL clusters. More information about Severalnines at www.severalnines.com
Severalnines has been offering its products free of charge since 2007, while the founders were employed at MySQL. These products are the de-facto standard tools to assist MySQL customers and users in deploying their MySQL clusters. More information about Severalnines at www.severalnines.com
Severalnines has been offering its products free of charge since 2007, while the founders were employed at MySQL. These products are the de-facto standard tools to assist MySQL customers and users in deploying their MySQL clusters. More information about Severalnines at www.severalnines.com
Severalnines has been offering its products free of charge since 2007, while the founders were employed at MySQL. These products are the de-facto standard tools to assist MySQL customers and users in deploying their MySQL clusters. More information about Severalnines at www.severalnines.com
Severalnines has been offering its products free of charge since 2007, while the founders were employed at MySQL. These products are the de-facto standard tools to assist MySQL customers and users in deploying their MySQL clusters. More information about Severalnines at www.severalnines.com
Severalnines has been offering its products free of charge since 2007, while the founders were employed at MySQL. These products are the de-facto standard tools to assist MySQL customers and users in deploying their MySQL clusters. More information about Severalnines at www.severalnines.com
Severalnines has been offering its products free of charge since 2007, while the founders were employed at MySQL. These products are the de-facto standard tools to assist MySQL customers and users in deploying their MySQL clusters. More information about Severalnines at www.severalnines.com
Dear Jury, Just as the electric grid revolutionized access to electricity 100 years ago, we at Severalnines believe that Cloud Computing will revolutionize IT where organizations will be able to plug into extremely powerful computing resources over the network. We have already seen the beginnings of this new wave, where the current infrastructure stack is being challenged and disrupted by a whole set of new technologies. For instance, in the database market, over 40 startups have received funding over the past 18 months. Severalnines is not building yet another database product, we believe there are already a lot of good technologies available. To manage a database costs 4 times the purchase price, and yet, very few companies are addressing this problem. Severalnines focuses on solutions to address this underserved segment. The founders of the company have a solid background in databases, having been at MySQL since 2003. The company develops a management platform which is database and cloud agnostic.We are database independent since we do not know who, if anybody, will be the next MySQL of the cloud.We are cloud independent, since we do not want to depend on any cloud vendor (e.g. Amazon or Rackspace) to avoid vendor lock-in. After the Amazon EC2 downtime during the Easter break, hundreds of affected companies have realized the importance of this. There is also a commercial aspect for avoiding vendor lock-in. Severalnines enhances productivity of organizations by attacking the biggest cost associated with database systems. We are a Swedish startup, hosted by SICS in Kista. There is also a small but very efficient development capacity in Singapore. Just as MySQL became a major brand and placed Sweden on the global software infrastructure map, we believe Severalnines can become a serious global player in the emerging Cloud space. We are very thankful that an organization like Eurocloud exists, and would like to thank the jury for considering our application. Kind regards,Vinay Joosery Severalnines AB
Severalnines has been offering its products free of charge since 2007, while the founders were employed at MySQL. These products are the de-facto standard tools to assist MySQL customers and users in deploying their MySQL clusters. More information about Severalnines at www.severalnines.com
Severalnines has been offering its products free of charge since 2007, while the founders were employed at MySQL. These products are the de-facto standard tools to assist MySQL customers and users in deploying their MySQL clusters. More information about Severalnines at www.severalnines.com
Severalnines has been offering its products free of charge since 2007, while the founders were employed at MySQL. These products are the de-facto standard tools to assist MySQL customers and users in deploying their MySQL clusters. More information about Severalnines at www.severalnines.com
Severalnines has been offering its products free of charge since 2007, while the founders were employed at MySQL. These products are the de-facto standard tools to assist MySQL customers and users in deploying their MySQL clusters. More information about Severalnines at www.severalnines.com
Severalnines has been offering its products free of charge since 2007, while the founders were employed at MySQL. These products are the de-facto standard tools to assist MySQL customers and users in deploying their MySQL clusters. More information about Severalnines at www.severalnines.com
Severalnines has been offering its products free of charge since 2007, while the founders were employed at MySQL. These products are the de-facto standard tools to assist MySQL customers and users in deploying their MySQL clusters. More information about Severalnines at www.severalnines.com
Severalnines has been offering its products free of charge since 2007, while the founders were employed at MySQL. These products are the de-facto standard tools to assist MySQL customers and users in deploying their MySQL clusters. More information about Severalnines at www.severalnines.com
Severalnines has been offering its products free of charge since 2007, while the founders were employed at MySQL. These products are the de-facto standard tools to assist MySQL customers and users in deploying their MySQL clusters. More information about Severalnines at www.severalnines.com
Severalnines has been offering its products free of charge since 2007, while the founders were employed at MySQL. These products are the de-facto standard tools to assist MySQL customers and users in deploying their MySQL clusters. More information about Severalnines at www.severalnines.com
Severalnines has been offering its products free of charge since 2007, while the founders were employed at MySQL. These products are the de-facto standard tools to assist MySQL customers and users in deploying their MySQL clusters. More information about Severalnines at www.severalnines.com
Severalnines has been offering its products free of charge since 2007, while the founders were employed at MySQL. These products are the de-facto standard tools to assist MySQL customers and users in deploying their MySQL clusters. More information about Severalnines at www.severalnines.com
Severalnines has been offering its products free of charge since 2007, while the founders were employed at MySQL. These products are the de-facto standard tools to assist MySQL customers and users in deploying their MySQL clusters. More information about Severalnines at www.severalnines.com
Severalnines has been offering its products free of charge since 2007, while the founders were employed at MySQL. These products are the de-facto standard tools to assist MySQL customers and users in deploying their MySQL clusters. More information about Severalnines at www.severalnines.com
Severalnines has been offering its products free of charge since 2007, while the founders were employed at MySQL. These products are the de-facto standard tools to assist MySQL customers and users in deploying their MySQL clusters. More information about Severalnines at www.severalnines.com
Severalnines has been offering its products free of charge since 2007, while the founders were employed at MySQL. These products are the de-facto standard tools to assist MySQL customers and users in deploying their MySQL clusters. More information about Severalnines at www.severalnines.com
Severalnines has been offering its products free of charge since 2007, while the founders were employed at MySQL. These products are the de-facto standard tools to assist MySQL customers and users in deploying their MySQL clusters. More information about Severalnines at www.severalnines.com
Dear Jury, Just as the electric grid revolutionized access to electricity 100 years ago, we at Severalnines believe that Cloud Computing will revolutionize IT where organizations will be able to plug into extremely powerful computing resources over the network. We have already seen the beginnings of this new wave, where the current infrastructure stack is being challenged and disrupted by a whole set of new technologies. For instance, in the database market, over 40 startups have received funding over the past 18 months. Severalnines is not building yet another database product, we believe there are already a lot of good technologies available. To manage a database costs 4 times the purchase price, and yet, very few companies are addressing this problem. Severalnines focuses on solutions to address this underserved segment. The founders of the company have a solid background in databases, having been at MySQL since 2003. The company develops a management platform which is database and cloud agnostic.We are database independent since we do not know who, if anybody, will be the next MySQL of the cloud.We are cloud independent, since we do not want to depend on any cloud vendor (e.g. Amazon or Rackspace) to avoid vendor lock-in. After the Amazon EC2 downtime during the Easter break, hundreds of affected companies have realized the importance of this. There is also a commercial aspect for avoiding vendor lock-in. Severalnines enhances productivity of organizations by attacking the biggest cost associated with database systems. We are a Swedish startup, hosted by SICS in Kista. There is also a small but very efficient development capacity in Singapore. Just as MySQL became a major brand and placed Sweden on the global software infrastructure map, we believe Severalnines can become a serious global player in the emerging Cloud space. We are very thankful that an organization like Eurocloud exists, and would like to thank the jury for considering our application. Kind regards,Vinay Joosery Severalnines AB
Severalnines has been offering its products free of charge since 2007, while the founders were employed at MySQL. These products are the de-facto standard tools to assist MySQL customers and users in deploying their MySQL clusters. More information about Severalnines at www.severalnines.com
Severalnines has been offering its products free of charge since 2007, while the founders were employed at MySQL. These products are the de-facto standard tools to assist MySQL customers and users in deploying their MySQL clusters. More information about Severalnines at www.severalnines.com
Severalnines has been offering its products free of charge since 2007, while the founders were employed at MySQL. These products are the de-facto standard tools to assist MySQL customers and users in deploying their MySQL clusters. More information about Severalnines at www.severalnines.com
Severalnines has been offering its products free of charge since 2007, while the founders were employed at MySQL. These products are the de-facto standard tools to assist MySQL customers and users in deploying their MySQL clusters. More information about Severalnines at www.severalnines.com
Severalnines has been offering its products free of charge since 2007, while the founders were employed at MySQL. These products are the de-facto standard tools to assist MySQL customers and users in deploying their MySQL clusters. More information about Severalnines at www.severalnines.com
Severalnines has been offering its products free of charge since 2007, while the founders were employed at MySQL. These products are the de-facto standard tools to assist MySQL customers and users in deploying their MySQL clusters. More information about Severalnines at www.severalnines.com
Severalnines has been offering its products free of charge since 2007, while the founders were employed at MySQL. These products are the de-facto standard tools to assist MySQL customers and users in deploying their MySQL clusters. More information about Severalnines at www.severalnines.com
Severalnines has been offering its products free of charge since 2007, while the founders were employed at MySQL. These products are the de-facto standard tools to assist MySQL customers and users in deploying their MySQL clusters. More information about Severalnines at www.severalnines.com
Severalnines has been offering its products free of charge since 2007, while the founders were employed at MySQL. These products are the de-facto standard tools to assist MySQL customers and users in deploying their MySQL clusters. More information about Severalnines at www.severalnines.com