SQL Server is a high performance relational engine and provides a highly scalable database platform but due to its complexity, bad programming practices, poor indexing and configuration can be prone to serious concurrency problems, unexpected behaviors, lost updates and much more! In SQL Server 2005, two optimistic concurrency mechanisms were introduced and touted as the solution to all our problems. Now in SQL Server 2012 and SQL 2014 even more have followed including latch free data-structures, but many challenges and problems still remain. Let’s take a long look into the world of SQL Server concurrency and investigate Pessimistic and Optimistic isolation understanding how they work, when you should use them, and more importantly when they can go very wrong. Don't be staring down the wrong end of SQL Server's two Smoking Barrels and join me for this revealing and thought provoking presentation.
Lockless in Seattle - Using In-Memory OLTP for Transaction ProcessingMark Broadbent
Locks and latches have long been the mechanism used to implement SQL Server concurrency control, but with the introduction of In-Memory OLTP the paradigm has shifted. Are we really looking at the Brave New World of Transaction Processing or a dystopian nightmare?
In this session, we will understand how In-Memory OLTP architecture is implemented and how its mechanics function. We will learn what transactional bad dependencies and other considerations are introduced by its use and what capabilities are provided by SQL Server 2016.
Schizophrenic High Availability with SQL and Windows 2016Mark Broadbent
Mark Broadbent gave a presentation on achieving high availability for SQL Server in Windows 2016. He discussed several options including SQL Server failover clustering, availability groups, cluster shared volumes, SMB 3.0 file shares, and Storage Spaces Direct. He also demonstrated new features in Windows 2016 like stretch database, SQL on Azure infrastructure, domain-independent availability groups, and distributed availability groups. The presentation provided an overview of high availability strategies and new capabilities in the latest versions of SQL Server and Windows.
Welcome to the strange and mysterious world of SQL Failover Clustering and enter Ye Olde Cluster Curiosity Shoppe where we will reveal a miscellany of top tips, tricks and advice gained from nearly two decades of installing and troubleshooting SQL Clusters.
Roll-up roll-up! Come and see :-
The "multi-headed" cluster.
The installation of Death.
The Zombie.
The Marie Celeste.
The indestructible network name.
And many more weird and wonderful exhibits.
Enter the Dragon - SQL 2014 on Server Core PASS Summit 2014 EditionMark Broadbent
This document summarizes a presentation about installing SQL Server 2014 on Windows Server Core. The presentation agenda includes an introduction to Server Core, how to install SQL Server on it, configuration considerations, and high availability options. The presenter is Mark Broadbent, a Microsoft Certified Master for SQL Server and leader of local user groups.
This document discusses the OpenSolaris Web Stack, which provides a set of integrated and optimized open source web infrastructure components. It summarizes the components included in the Web Stack, how they are packaged and supported on OpenSolaris, Solaris 10, and RHEL 5. It also discusses the performance benefits of using the Web Stack on newer Intel Nehalem servers and outlines future directions.
Running your Java EE 6 applications in the Cloud (FISL 12)Arun Gupta
This document discusses running Java EE 6 applications in the cloud. It provides an overview of Java EE 6 and demonstrates how to deploy Java EE 6 applications on various cloud platforms including Amazon Web Services, RightScale, Microsoft Azure, and Joyent. The document also discusses the Java EE 7 specification and upcoming GlassFish Server distributions.
SharePoint is from Mars, SQL Server is from Venus (SQL Server for SharePoint ...Mark Broadbent
The SQL Server Database Engine is a prerequisite and fundamental part of any SharePoint deployment but the downside to all of this is the Database Server usually brings a Database Administrator with it. In this session we will explain how to configure SQL Server correctly with SharePoint deployments in mind, how the underlying architecture and mechanisms of SQL Server work and why you need to do all this! By the end of this session you will have learnt how to talk to your DBA to explain that they are doing it wrong!
This document discusses DevCloud, a virtual appliance that provides a working CloudStack environment for development and testing purposes. It can be used to try CloudStack in an isolated sandbox, develop CloudStack locally and deploy new versions to DevCloud, or develop and run CloudStack locally using DevCloud as Xen hosts. The steps to install and configure DevCloud in VirtualBox are provided, which include downloading the DevCloud virtual appliance, importing it into VirtualBox, starting the VM, and checking out and deploying the latest CloudStack code. Ways to contribute to the CloudStack community are also listed, such as participating in discussions, reporting bugs, reviewing code, helping with documentation, and contributing code fixes and features.
Lockless in Seattle - Using In-Memory OLTP for Transaction ProcessingMark Broadbent
Locks and latches have long been the mechanism used to implement SQL Server concurrency control, but with the introduction of In-Memory OLTP the paradigm has shifted. Are we really looking at the Brave New World of Transaction Processing or a dystopian nightmare?
In this session, we will understand how In-Memory OLTP architecture is implemented and how its mechanics function. We will learn what transactional bad dependencies and other considerations are introduced by its use and what capabilities are provided by SQL Server 2016.
Schizophrenic High Availability with SQL and Windows 2016Mark Broadbent
Mark Broadbent gave a presentation on achieving high availability for SQL Server in Windows 2016. He discussed several options including SQL Server failover clustering, availability groups, cluster shared volumes, SMB 3.0 file shares, and Storage Spaces Direct. He also demonstrated new features in Windows 2016 like stretch database, SQL on Azure infrastructure, domain-independent availability groups, and distributed availability groups. The presentation provided an overview of high availability strategies and new capabilities in the latest versions of SQL Server and Windows.
Welcome to the strange and mysterious world of SQL Failover Clustering and enter Ye Olde Cluster Curiosity Shoppe where we will reveal a miscellany of top tips, tricks and advice gained from nearly two decades of installing and troubleshooting SQL Clusters.
Roll-up roll-up! Come and see :-
The "multi-headed" cluster.
The installation of Death.
The Zombie.
The Marie Celeste.
The indestructible network name.
And many more weird and wonderful exhibits.
Enter the Dragon - SQL 2014 on Server Core PASS Summit 2014 EditionMark Broadbent
This document summarizes a presentation about installing SQL Server 2014 on Windows Server Core. The presentation agenda includes an introduction to Server Core, how to install SQL Server on it, configuration considerations, and high availability options. The presenter is Mark Broadbent, a Microsoft Certified Master for SQL Server and leader of local user groups.
This document discusses the OpenSolaris Web Stack, which provides a set of integrated and optimized open source web infrastructure components. It summarizes the components included in the Web Stack, how they are packaged and supported on OpenSolaris, Solaris 10, and RHEL 5. It also discusses the performance benefits of using the Web Stack on newer Intel Nehalem servers and outlines future directions.
Running your Java EE 6 applications in the Cloud (FISL 12)Arun Gupta
This document discusses running Java EE 6 applications in the cloud. It provides an overview of Java EE 6 and demonstrates how to deploy Java EE 6 applications on various cloud platforms including Amazon Web Services, RightScale, Microsoft Azure, and Joyent. The document also discusses the Java EE 7 specification and upcoming GlassFish Server distributions.
SharePoint is from Mars, SQL Server is from Venus (SQL Server for SharePoint ...Mark Broadbent
The SQL Server Database Engine is a prerequisite and fundamental part of any SharePoint deployment but the downside to all of this is the Database Server usually brings a Database Administrator with it. In this session we will explain how to configure SQL Server correctly with SharePoint deployments in mind, how the underlying architecture and mechanisms of SQL Server work and why you need to do all this! By the end of this session you will have learnt how to talk to your DBA to explain that they are doing it wrong!
This document discusses DevCloud, a virtual appliance that provides a working CloudStack environment for development and testing purposes. It can be used to try CloudStack in an isolated sandbox, develop CloudStack locally and deploy new versions to DevCloud, or develop and run CloudStack locally using DevCloud as Xen hosts. The steps to install and configure DevCloud in VirtualBox are provided, which include downloading the DevCloud virtual appliance, importing it into VirtualBox, starting the VM, and checking out and deploying the latest CloudStack code. Ways to contribute to the CloudStack community are also listed, such as participating in discussions, reporting bugs, reviewing code, helping with documentation, and contributing code fixes and features.
(BDT323) Amazon EBS & Cassandra: 1 Million Writes Per SecondAmazon Web Services
With the introduction of Amazon Elastic Block Store (EBS) GP2 and recent stability improvements, EBS has gained credibility in the Cassandra world for high performance workloads. By running Cassandra on Amazon EBS, you can run denser, cheaper Cassandra clusters with just as much availability as ephemeral storage instances. This talk walks through a highly detailed use case and configuration guide for a multi PetaByte, million write per second cluster that needs to be high performing and cost efficient. We explore the instance type choices, configuration, and low-level tuning that allowed us to hit 1.3 million writes per second with a replication factor of 3 on just 60 nodes.
The document discusses using OpenStack Ironic to provision bare metal servers. Key points include:
- Ironic allows provisioning of physical servers alongside virtual instances managed by Nova.
- Commands are provided to enroll bare metal nodes in Ironic, create ports, validate and power on nodes, and deploy an image using Nova.
- Tips discuss issues with large-scale deployments, PXE boot, and driver/library conflicts.
This document discusses Docker 1.12 Swarm scheduling. It describes the basic concepts of swarm scheduling including labeling nodes, applying constraints, and strategies. It also demonstrates scheduling criteria like resource availability and awareness of labels and constraints. The demo section shows a setup with 3 EC2 instances, 1 manager and 2 workers with different engine labels, to demonstrate scheduling.
This document summarizes the VMware compute driver for Openstack. It provides initial support for provisioning virtual machines to ESXi hosts. The driver follows a one compute per host model and supports basic instance lifecycle operations. It also enables linking clones to reduce storage usage. Functionality was tested against an ESXi host and many common operations like provisioning, reboot, and delete were validated. The driver is being enhanced to support vCenter clusters and improve statistics accuracy.
MySQL InnoDB Cluster provides a complete, high-availability solution for MySQL. Learn how with a few easy-to-use Shell commands, how to set up a MySQL database architecture.
DevCloud - Setup and Demo on Apache CloudStack buildacloud
Hands-on Hacking Session by Amogh Vasekar
1. Demo of CloudStack using DevCloud
2. How we got there -
A) Building CloudStack from scratch
B) Deploying databases
C) Configuring your own DevCloud using Marvin
This document outlines the curriculum for a comprehensive training course on designing, implementing, and protecting a VMware datacenter. The course covers key topics like high availability, storage, security, backup, and monitoring over 14 classes and 12 modules. It includes hands-on labs for setting up ESXi hosts, vCenter, storage solutions like Open-E DSS, networking, HA clusters, backups with VDR, and monitoring with vOPS. The goal is to provide advanced professionals with the practical skills needed to successfully manage medium to large VMware environments.
Containers, cluster management, microservices, Kubernetes and many other buzzwords are flying around us all the time. Our team is building solutions that make it easy to cope with all the complexity around cluster infrastructure. In this talk we present the project we are working on, namely running Kubernetes on top of the Mesos cluster scheduler. Furthermore we show DCOS which makes it easy to deploy and run Kubernetes with a single command.
Azure File Share and File Sync guide (Beginners Edition)Naseem Khoodoruth
Azure File Share and File Sync guide (Beginners Edition)
Option to have a file server on premise for caching or access the storage from your local desktop (Windows 10)
#azure #fileserver
Hypervisor Selection in CloudStack and OpenStackTim Mackey
- The document discusses considerations for selecting a hypervisor for use in cloud platforms like CloudStack and OpenStack including defining service offerings, tenancy requirements, and virtualization infrastructure needs. It then provides information on specific hypervisor options like XenServer, vSphere, KVM, and Hyper-V comparing features relevant to CloudStack and OpenStack.
The presentation covers the main features of the MySQL, installation steps, architecture overview, basic administration practices and the Enterprise Edition features. Usually Live demos will accompany this slides.
CloudStack Day Japan 2015 - Hypervisor Selection in CloudStack 4.5Tim Mackey
Tim Mackey presented on selecting the correct hypervisor for a cloud. Key factors to consider include service offerings, tenancy requirements, virtualization infrastructure options like XenServer, vSphere, KVM and Hyper-V, defining the network, storage options, and CloudStack features supported. The best hypervisor depends on use cases like private enterprise clouds, Linux workloads or high tenant density. Planning should include success criteria, topology, storage and supported configurations before selecting a preferred hypervisor or hypervisors.
This document provides an overview of troubleshooting CloudStack components including general troubleshooting techniques, secondary storage VMs, console proxy VMs, and virtual routers. It discusses examining log files, enabling debug logging, and using tools like MySQL Workbench. Examples are given for troubleshooting issues like insufficient capacity and calculating primary storage allocation. System VMs each have specific log files and services to check. The presentation aims to help support engineers effectively troubleshoot CloudStack environments.
This document discusses container orchestration and provides an overview of various container orchestration tools and concepts. It describes schedulers that manage resource allocation and deployment of containers across clusters as well as tools for configuration management, service discovery, and maintaining a consistent cluster state. Examples of specific container orchestration systems like Mesos, Marathon, CoreOS, Kubernetes, and Docker libswarm are outlined.
This document summarizes a presentation about MySQL Group Replication. The presentation discusses how Group Replication provides enhanced high availability for MySQL databases by allowing multiple MySQL servers to act as equal masters that can handle writes and remain available even if one server fails. It covers the theory behind Group Replication, how to configure and use it, and management of Group Replication deployments.
This document discusses running Oracle Database in Docker containers. It provides an overview of Docker and containers, and then describes how to run Oracle Database within a Docker container. Specifically, it outlines downloading prebuilt images from Docker Store or Oracle Store, or building a custom image using Dockerfiles in Oracle's GitHub repository. It also provides examples for running Docker commands to launch an Oracle Database container using these images.
Webinar slides: ClusterControl 1.4: The MySQL Replication & MongoDB Edition -...Severalnines
ClusterControl reduces complexity of managing your database infrastructure while adding support for new technologies; enabling you to truly automate multiple environments for next-level applications. This latest release further builds out the functionality of ClusterControl to allow you to manage and secure your 24/7, mission critical infrastructures.
In this webinar, Johan demonstrated how ClusterControl increases your efficiency by giving you a single interface to deploy and operate your databases, instead of searching for and cobbling together a combination of open source tools, utilities and scripts that need constant updates and maintenance. Watch as ClusterControl demystifies the complexity associated with database high availability, load balancing, recovery and your other everyday struggles.
To put it simply: learn how to be a database hero with ClusterControl!
AGENDA
- ClusterControl (1.4) Overview
- ‘Always on Databases’ with enhanced MySQL Replication functions
- ‘Safer NoSQL’ with MongoDB and larger sharded cluster deployments
- ‘Enabling the DBA’ with ProxySQL, HAProxy and MaxScale
- Backing up your open source databases
- Live Demo
- Q&A
SPEAKER
Johan Andersson, CTO, Severalnines - Johan's technical background and interest are in high performance computing as demonstrated by the work he did on main-memory clustered databases at Ericsson as well as his research on parallel Java Virtual Machines at Trinity College Dublin in Ireland. Prior to co-founding Severalnines, Johan was Principal Consultant and lead of the MySQL Clustering & High Availability consulting group at MySQL / Sun Microsystems / Oracle, where he designed and implemented large-scale MySQL systems for key customers. Johan is a regular speaker at MySQL User Conferences as well as other high profile community gatherings with popular talks and tutorials around architecting and tuning MySQL Clusters.
Presented at Apache CloudStack Collabration Conference 2014, Denver, CO.
Talked about recently Virtual Router improvement in CloudStack 4.4 to unify and significantly speed up VR command execution, as well as some further improvement ideas.
Persistence Is Futile - Implementing Delayed DurabilityMark Broadbent
The concurrency model of most Relational Database Systems are defined by the ACID properties but as they aim for ever increasing transactional throughput, those rules are bent, ignored, or even broken.
In this session, we will investigate how SQL Server implements transactional durability in order to understand how Delayed Durability bends the rules to remove transactional bottlenecks and achieve improved throughput. We will take a look at how this can be used to compliment In-Memory OLTP performance, and how it might impact or compromise other things.
See this session and you will be assimilated!
Welcome to the nightmare of locking, blocking and isolation levels!Boris Hristov
There will always be locking inside your SQL Server box! In this session we go deep into how locking mechanism works, what are the main problems around locking, how we can resolve them and when isolation levels can actually be of help!
(BDT323) Amazon EBS & Cassandra: 1 Million Writes Per SecondAmazon Web Services
With the introduction of Amazon Elastic Block Store (EBS) GP2 and recent stability improvements, EBS has gained credibility in the Cassandra world for high performance workloads. By running Cassandra on Amazon EBS, you can run denser, cheaper Cassandra clusters with just as much availability as ephemeral storage instances. This talk walks through a highly detailed use case and configuration guide for a multi PetaByte, million write per second cluster that needs to be high performing and cost efficient. We explore the instance type choices, configuration, and low-level tuning that allowed us to hit 1.3 million writes per second with a replication factor of 3 on just 60 nodes.
The document discusses using OpenStack Ironic to provision bare metal servers. Key points include:
- Ironic allows provisioning of physical servers alongside virtual instances managed by Nova.
- Commands are provided to enroll bare metal nodes in Ironic, create ports, validate and power on nodes, and deploy an image using Nova.
- Tips discuss issues with large-scale deployments, PXE boot, and driver/library conflicts.
This document discusses Docker 1.12 Swarm scheduling. It describes the basic concepts of swarm scheduling including labeling nodes, applying constraints, and strategies. It also demonstrates scheduling criteria like resource availability and awareness of labels and constraints. The demo section shows a setup with 3 EC2 instances, 1 manager and 2 workers with different engine labels, to demonstrate scheduling.
This document summarizes the VMware compute driver for Openstack. It provides initial support for provisioning virtual machines to ESXi hosts. The driver follows a one compute per host model and supports basic instance lifecycle operations. It also enables linking clones to reduce storage usage. Functionality was tested against an ESXi host and many common operations like provisioning, reboot, and delete were validated. The driver is being enhanced to support vCenter clusters and improve statistics accuracy.
MySQL InnoDB Cluster provides a complete, high-availability solution for MySQL. Learn how with a few easy-to-use Shell commands, how to set up a MySQL database architecture.
DevCloud - Setup and Demo on Apache CloudStack buildacloud
Hands-on Hacking Session by Amogh Vasekar
1. Demo of CloudStack using DevCloud
2. How we got there -
A) Building CloudStack from scratch
B) Deploying databases
C) Configuring your own DevCloud using Marvin
This document outlines the curriculum for a comprehensive training course on designing, implementing, and protecting a VMware datacenter. The course covers key topics like high availability, storage, security, backup, and monitoring over 14 classes and 12 modules. It includes hands-on labs for setting up ESXi hosts, vCenter, storage solutions like Open-E DSS, networking, HA clusters, backups with VDR, and monitoring with vOPS. The goal is to provide advanced professionals with the practical skills needed to successfully manage medium to large VMware environments.
Containers, cluster management, microservices, Kubernetes and many other buzzwords are flying around us all the time. Our team is building solutions that make it easy to cope with all the complexity around cluster infrastructure. In this talk we present the project we are working on, namely running Kubernetes on top of the Mesos cluster scheduler. Furthermore we show DCOS which makes it easy to deploy and run Kubernetes with a single command.
Azure File Share and File Sync guide (Beginners Edition)Naseem Khoodoruth
Azure File Share and File Sync guide (Beginners Edition)
Option to have a file server on premise for caching or access the storage from your local desktop (Windows 10)
#azure #fileserver
Hypervisor Selection in CloudStack and OpenStackTim Mackey
- The document discusses considerations for selecting a hypervisor for use in cloud platforms like CloudStack and OpenStack including defining service offerings, tenancy requirements, and virtualization infrastructure needs. It then provides information on specific hypervisor options like XenServer, vSphere, KVM, and Hyper-V comparing features relevant to CloudStack and OpenStack.
The presentation covers the main features of the MySQL, installation steps, architecture overview, basic administration practices and the Enterprise Edition features. Usually Live demos will accompany this slides.
CloudStack Day Japan 2015 - Hypervisor Selection in CloudStack 4.5Tim Mackey
Tim Mackey presented on selecting the correct hypervisor for a cloud. Key factors to consider include service offerings, tenancy requirements, virtualization infrastructure options like XenServer, vSphere, KVM and Hyper-V, defining the network, storage options, and CloudStack features supported. The best hypervisor depends on use cases like private enterprise clouds, Linux workloads or high tenant density. Planning should include success criteria, topology, storage and supported configurations before selecting a preferred hypervisor or hypervisors.
This document provides an overview of troubleshooting CloudStack components including general troubleshooting techniques, secondary storage VMs, console proxy VMs, and virtual routers. It discusses examining log files, enabling debug logging, and using tools like MySQL Workbench. Examples are given for troubleshooting issues like insufficient capacity and calculating primary storage allocation. System VMs each have specific log files and services to check. The presentation aims to help support engineers effectively troubleshoot CloudStack environments.
This document discusses container orchestration and provides an overview of various container orchestration tools and concepts. It describes schedulers that manage resource allocation and deployment of containers across clusters as well as tools for configuration management, service discovery, and maintaining a consistent cluster state. Examples of specific container orchestration systems like Mesos, Marathon, CoreOS, Kubernetes, and Docker libswarm are outlined.
This document summarizes a presentation about MySQL Group Replication. The presentation discusses how Group Replication provides enhanced high availability for MySQL databases by allowing multiple MySQL servers to act as equal masters that can handle writes and remain available even if one server fails. It covers the theory behind Group Replication, how to configure and use it, and management of Group Replication deployments.
This document discusses running Oracle Database in Docker containers. It provides an overview of Docker and containers, and then describes how to run Oracle Database within a Docker container. Specifically, it outlines downloading prebuilt images from Docker Store or Oracle Store, or building a custom image using Dockerfiles in Oracle's GitHub repository. It also provides examples for running Docker commands to launch an Oracle Database container using these images.
Webinar slides: ClusterControl 1.4: The MySQL Replication & MongoDB Edition -...Severalnines
ClusterControl reduces complexity of managing your database infrastructure while adding support for new technologies; enabling you to truly automate multiple environments for next-level applications. This latest release further builds out the functionality of ClusterControl to allow you to manage and secure your 24/7, mission critical infrastructures.
In this webinar, Johan demonstrated how ClusterControl increases your efficiency by giving you a single interface to deploy and operate your databases, instead of searching for and cobbling together a combination of open source tools, utilities and scripts that need constant updates and maintenance. Watch as ClusterControl demystifies the complexity associated with database high availability, load balancing, recovery and your other everyday struggles.
To put it simply: learn how to be a database hero with ClusterControl!
AGENDA
- ClusterControl (1.4) Overview
- ‘Always on Databases’ with enhanced MySQL Replication functions
- ‘Safer NoSQL’ with MongoDB and larger sharded cluster deployments
- ‘Enabling the DBA’ with ProxySQL, HAProxy and MaxScale
- Backing up your open source databases
- Live Demo
- Q&A
SPEAKER
Johan Andersson, CTO, Severalnines - Johan's technical background and interest are in high performance computing as demonstrated by the work he did on main-memory clustered databases at Ericsson as well as his research on parallel Java Virtual Machines at Trinity College Dublin in Ireland. Prior to co-founding Severalnines, Johan was Principal Consultant and lead of the MySQL Clustering & High Availability consulting group at MySQL / Sun Microsystems / Oracle, where he designed and implemented large-scale MySQL systems for key customers. Johan is a regular speaker at MySQL User Conferences as well as other high profile community gatherings with popular talks and tutorials around architecting and tuning MySQL Clusters.
Presented at Apache CloudStack Collabration Conference 2014, Denver, CO.
Talked about recently Virtual Router improvement in CloudStack 4.4 to unify and significantly speed up VR command execution, as well as some further improvement ideas.
Persistence Is Futile - Implementing Delayed DurabilityMark Broadbent
The concurrency model of most Relational Database Systems are defined by the ACID properties but as they aim for ever increasing transactional throughput, those rules are bent, ignored, or even broken.
In this session, we will investigate how SQL Server implements transactional durability in order to understand how Delayed Durability bends the rules to remove transactional bottlenecks and achieve improved throughput. We will take a look at how this can be used to compliment In-Memory OLTP performance, and how it might impact or compromise other things.
See this session and you will be assimilated!
Welcome to the nightmare of locking, blocking and isolation levels!Boris Hristov
There will always be locking inside your SQL Server box! In this session we go deep into how locking mechanism works, what are the main problems around locking, how we can resolve them and when isolation levels can actually be of help!
MySQL Webinar 2/4 Performance tuning, hardware, optimisationMark Swarbrick
This document summarizes a webinar on installing, configuring, and tuning MySQL for performance. It discusses hardware specifications for MySQL servers, setting up replication between a master and slave servers, and techniques for performance tuning. The webinar agenda covers hardware specifications, setting up replication, and performance tuning. It also provides an overview of MySQL support across various hardware platforms and operating systems.
Troubleshooting Deadlocks in SQL Server 2000elliando dias
The document discusses deadlocks in SQL Server 2000, including:
1. Deadlocking concepts like lock-based and multi-resource deadlocks.
2. Types of lock deadlocks like single-resource conversion deadlocks and multi-resource exclusive or mixed exclusive-shared deadlocks.
3. Gathering deadlock information in SQL Server like error 1205 and identifying blocking and deadlocked processes.
Using Edition-Based Redefinition for Zero Downtime PL/SQL ChangesChris Saxon
An introduction to edition-based redefinition, a technology which enables zero-downtime application releases for Oracle Database. Discusses the challenges with deploying PL/SQL code changes, and shows how EBR solves these issues.
This document discusses various replication tips and tricks in MySQL, including:
1. It introduces replication features and provides short overviews of setup, status checking, failover using GTIDs, binary log analysis, and crash-safe and multi-source replication.
2. It explains how to read the status of slave servers using SHOW SLAVE STATUS and understand key fields.
3. It shows how to decode binary logs using mysqlbinlog to view queries, transactions, and row events.
The Nightmare of Locking, Blocking and Isolation Levels!Boris Hristov
This document provides an overview of locking, blocking, and transaction isolation levels in SQL Server. It begins with an introduction to locking and how SQL Server uses locks for concurrency control. It then discusses the different lock types, lock compatibility, and the lock hierarchy. The document demonstrates how to view locking information and troubleshoot locking problems. It also covers lock escalation, deadlocks, and resolving blocking issues. Finally, it concludes with an explanation of the various transaction isolation levels supported by SQL Server and how they differ in terms of concurrency and consistency.
O Mundo Oracle e o Que Há de Novo no JavaBruno Borges
Conheça um pouco do Mundo Oracle e produtos que o mercado utiliza. Uma forma de investir na sua carreira ao estudar este produtos e estar disponível para diferentes oportunidades profissionais. Veja um pouco do framework Oracle ADF, do servidor de aplicação WebLogic, e da linha Engineering Systems Exalogic. Conheça o que a Oracle oferece de soluções Open Source e também o que há de novo na tecnologia Java para Embedded, JavaFX, Java EE.
The outer query and inner query will not share cursors because they are in different contexts - the outer query is a SQL statement while the inner query is inside a PL/SQL function. Each will be parsed separately.
To enable cursor sharing between the outer and inner queries, you can:
1. Pass the deptno value directly to the function instead of a bind variable
2. Define the function as pipelined and return ref cursor from it so the inner query becomes a subquery of the outer query.
3. Use inline views instead of a function.
So in summary, different contexts prevent cursor sharing. You need to modify the code to bring the queries in the same context.
The document discusses James Weaver, a Java Technology Ambassador at Oracle Corporation. It provides biographical details on Weaver, including that he is the author of several Java/JavaFX books and the co-leader of IoT and JavaFX communities. The document also discusses Weaver's interest in music competitions like "The Voice" and promotes an online course on building a prototype embedded device for collecting shipping container data using Java.
This document provides an overview of MySQL for Linux system administrators. It discusses MySQL architecture including storage engines, memory usage, the MySQL server process, and InnoDB transaction processing. It also covers topics like backups and replication, and the agenda includes performance and capacity planning. The goal is to help system administrators understand and manage MySQL databases.
Welcome to the nightmare of locking, blocking and isolation levels!Boris Hristov
I am sure you all know that troubleshooting problems related to locking and blocking (hey, sometimes there are deadlocks too) can be a real nightmare! In this session, you will be able to see and understand why and how locking actually works, what problems it causes and how can we use isolation levels and various other techniques to resolve them!
This document summarizes new features in MySQL replication introduced in versions 5.6 and 5.7. Key features discussed include binary log group commit for improved performance, optimized row-based replication with partial binary logging, multi-threaded slave replication, global transaction identifiers for topologies with multiple masters, transactional metadata storage, and binary log event checksums. The document provides examples and explanations of how these features improve high availability, scalability and reliability of MySQL replication deployments.
PL/SQL All the Things in Oracle SQL DeveloperJeff Smith
The document discusses features of Oracle SQL Developer, a free Oracle Database IDE. It provides an overview of SQL Developer's major feature areas including its PL/SQL IDE capabilities, SQL editing, database object browsing, reporting, data modeling, administration, and more. The document also reviews SQL Developer's history and includes screenshots demonstrating features like snippets, formatting, debugging, documentation generation, and unit testing.
Tweet4Beer - Beertap powered by Java goes IoT and JavaFXBruno Borges
This document discusses a project that uses Java technologies to power a beer tap via Twitter. It involves a JavaFX application that tweets to turn on a relay connected to a beer tap. A REST service in Oracle Java Cloud Service is used to control the relay. The project demonstrates using Java ME, SE Embedded, and Java EE to connect devices to the cloud as part of an Internet of Things application.
The document outlines 10 building blocks for enterprise JavaScript applications:
1) Resist hype and focus on practical applications.
2) Rediscover HTML5 as an application framework with new semantic elements and input types.
3) Compare responsive design between CSS media queries and JavaScript libraries that dynamically load elements.
4) Evaluate frameworks versus libraries and choose based on project needs.
5) Incorporate modularity using module loaders like RequireJS or browserify.
6) Evaluate language abstractions over JavaScript, CSS, and HTML like TypeScript, SASS, and Emmet.
7) Don't worry about ecosystem volatility and short-lived frameworks or libraries.
8) Focus on write-
XCon 2014 => http://xcon.xfocus.org/
In the past was quite common to exploit heap / pool manager vulnerabilities attacking its internal linked structures. However current memory management improve a lot and at current date it is quite ineffective to attack heap in this way. But still those techniques come into hand when we start to looking at linked structures widespread throughout kernel that are unfortunately not hardened enough.
In this presentation we will examine power of these vulnerabilities by famous example “CVE – 2013 - 3660”. Showing bypass on ‘lazy’ assertions of _LIST_ENTRY, present exploitation after party and teleport to kernel.
Experiences of implementing Oracle SOA Cloud Service in mid 2016. Topics include: topologies; user and key management; SSL and certificates; provisioning automation (eProseed Accelerator for Oracle Cloud); monitoring post go-live, etc.
This presentation was delivered by Simon Haslam and Kiran Tailor at the UKOUG Tech16 conference in Birmingham on 5/12/16.
The Nightmare of Locking, Blocking and Isolation Levels!Boris Hristov
I am sure you all know that troubleshooting problems related to locking and blocking (hey, sometimes there are deadlocks too) can be a real nightmare! In this session, you will be able to see and understand why and how locking actually works, what problems it causes and how can we use isolation levels and various other techniques to resolve them!
This document discusses secure coding practices for PL/SQL applications. It begins by covering common security problems in PL/SQL code like injection vulnerabilities. It then demonstrates how to find security issues like sinks and sources in code. The document emphasizes the importance of limiting access to code and data as well as following secure coding standards. Finally, it explores options for protecting intellectual property in PL/SQL code like wrapping, obfuscation, and adding license validation.
Being Buck Woody - PASS Summit 2014 EditionMark Broadbent
The PASS Summit is the largest SQL Server conference in the world and has a cross section of some of the world’s leading authorities on SQL Server technologies. It is one of the most vibrant and connected communities in the technical world. Now is your chance to learn, make new contacts and drive your career forward (the way you always keep telling yourself you will). In this session Mark Broadbent will describe how his professional career at ACME Corp has hit a brick wall, but after discovering a small door behind a filing cabinet, he has managed to climb into the mind of Buck Woody and discover a world of possibilities and opportunity at his disposal. And better still, Buck and Mark are both ready to share many of their secrets and experiences with you!
Enter The Dragon - SQL 2014 on Server Core - SQLSaturday #341 Porto EditionMark Broadbent
In 1982 the Dragon32 entered the home computer market but unfortunately there was one small problem ...lower-case letters were almost impossible to access. Two years later Dragon was no more. In 2008 Microsoft released ServerCore providing a fast and streamlined (but reduced functionality) edition of Windows with minimal GUI support and with Windows 2012/R2 Server Core is "by default". Ever since SQL 2012, installation onto Server Core became a "supported" option and meant the single biggest administrative shift for a DBA since the release of SQL 2005 ...or did it? In this exciting session we will discuss administration, configuration and installation of both SQL 2014 and ServerCore in both standalone and advanced AlwaysOn configurations but will the lack of GUI support send Server Core in the same direction as the Dragon32 or spell a bright new beginning for Server based computing and SQL Server?
SQL Server AlwaysOn for Dummies SQLSaturday #202 EditionMark Broadbent
Welcome to Microsoft's world of the buzzword. Yes, they've done it again and created another ambiguous term that no one really understands. AlwaysOn is a powerful group of highly available technologies, and in this presentation, we will delve into their murky world & reveal the technology behind the buzz. Focusing specifically on the two key components of SQL Server 2012 AlwaysOn in Failover Clustered Instances and Availability Groups, we will investigate their pre-requisites, setup, administration, use & drawbacks. We will look at: Using Windows 2008, 2012 and Server Core Windows Clustering Quorum Failover Clustered Instances Availability Groups Readable Secondaries Clustering Tools and PowerShell Dummies and higher are welcome.
Moves Like Jagger - Upgrading to SQL Server 2012 (SQLBits XI Edition)Mark Broadbent
Do you want to safely upgrade or migrate to SQL Server 2012? This presentation will give you ideas on how to do this as safely as possible with the least downtime.
Concurrency is probably one of the most important subjects in SQL Server, but one of the least talked about -and one of the most misunderstood. We will attempt to delve into the world of Transactions, Locking and Isolation and reveal some of SQL's dirty little secrets.
PASS 2012 "Moves Like Jagger" - Upgrading to SQL Server 2012Mark Broadbent
Upgrading SQL Server is one of the most challenging and risky operations that you will perform as a DBA. Make the wrong move and you could be heading for the exit. Upgrade does not end when you think so you should prepare for the worst and aim for success.
This document discusses transactions, locking, and isolation in SQL Server. It covers the structure and scope of transactions, how locks are taken at different isolation levels and can cause blocking or deadlocks. It also discusses the differences between NOLOCK hints, READPAST hints, and snapshot isolation versus read committed snapshot. Demos are provided to illustrate locking and snapshot functionality in SQL Server.
This document provides an overview of SQL Server clustering for beginners. It introduces SQL Server clustering, including what it is, why it is used, who supports it, and whether it is suitable. It also outlines an agenda covering introduction to clustering, demonstrations, installation, administration, problems, and disaster planning. The presenter's qualifications and contact details are provided.
The document discusses strategies for scaling out SQL Server databases to address increasing data volumes and workload demands. It covers reasons to scale out including availability, disaster recovery, cost and performance. It emphasizes the importance of first scaling in through query tuning and database design before scaling out. The document then outlines various scale out strategies like partitioning, replication, and clustering. It also discusses hybrid approaches and tools for managing scaled out SQL Server environments.
Thinking outside the box, learning a little about a lotMark Broadbent
Being a SQL specialist is not enough. Windows and the interfaces SQL consumes are becoming ever more complex. Being aware of these technologies and beyond can make you a better DBA. You will learn how to become a DBA 2.5, SQL Enterprise name resolution strategies, create your own private VSAN & VCluster, fail instances BETWEEN separate clusters and use the CLR to manage the OS from SQL.
14 th Edition of International conference on computer visionShulagnaSarkar2
About the event
14th Edition of International conference on computer vision
Computer conferences organized by ScienceFather group. ScienceFather takes the privilege to invite speakers participants students delegates and exhibitors from across the globe to its International Conference on computer conferences to be held in the Various Beautiful cites of the world. computer conferences are a discussion of common Inventions-related issues and additionally trade information share proof thoughts and insight into advanced developments in the science inventions service system. New technology may create many materials and devices with a vast range of applications such as in Science medicine electronics biomaterials energy production and consumer products.
Nomination are Open!! Don't Miss it
Visit: computer.scifat.com
Award Nomination: https://x-i.me/ishnom
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For Enquiry: Computer@scifat.com
8 Best Automated Android App Testing Tool and Framework in 2024.pdfkalichargn70th171
Regarding mobile operating systems, two major players dominate our thoughts: Android and iPhone. With Android leading the market, software development companies are focused on delivering apps compatible with this OS. Ensuring an app's functionality across various Android devices, OS versions, and hardware specifications is critical, making Android app testing essential.
Artificia Intellicence and XPath Extension FunctionsOctavian Nadolu
The purpose of this presentation is to provide an overview of how you can use AI from XSLT, XQuery, Schematron, or XML Refactoring operations, the potential benefits of using AI, and some of the challenges we face.
Project Management: The Role of Project Dashboards.pdfKarya Keeper
Project management is a crucial aspect of any organization, ensuring that projects are completed efficiently and effectively. One of the key tools used in project management is the project dashboard, which provides a comprehensive view of project progress and performance. In this article, we will explore the role of project dashboards in project management, highlighting their key features and benefits.
Flutter is a popular open source, cross-platform framework developed by Google. In this webinar we'll explore Flutter and its architecture, delve into the Flutter Embedder and Flutter’s Dart language, discover how to leverage Flutter for embedded device development, learn about Automotive Grade Linux (AGL) and its consortium and understand the rationale behind AGL's choice of Flutter for next-gen IVI systems. Don’t miss this opportunity to discover whether Flutter is right for your project.
The Key to Digital Success_ A Comprehensive Guide to Continuous Testing Integ...kalichargn70th171
In today's business landscape, digital integration is ubiquitous, demanding swift innovation as a necessity rather than a luxury. In a fiercely competitive market with heightened customer expectations, the timely launch of flawless digital products is crucial for both acquisition and retention—any delay risks ceding market share to competitors.
Consistent toolbox talks are critical for maintaining workplace safety, as they provide regular opportunities to address specific hazards and reinforce safe practices.
These brief, focused sessions ensure that safety is a continual conversation rather than a one-time event, which helps keep safety protocols fresh in employees' minds. Studies have shown that shorter, more frequent training sessions are more effective for retention and behavior change compared to longer, infrequent sessions.
Engaging workers regularly, toolbox talks promote a culture of safety, empower employees to voice concerns, and ultimately reduce the likelihood of accidents and injuries on site.
The traditional method of conducting safety talks with paper documents and lengthy meetings is not only time-consuming but also less effective. Manual tracking of attendance and compliance is prone to errors and inconsistencies, leading to gaps in safety communication and potential non-compliance with OSHA regulations. Switching to a digital solution like Safelyio offers significant advantages.
Safelyio automates the delivery and documentation of safety talks, ensuring consistency and accessibility. The microlearning approach breaks down complex safety protocols into manageable, bite-sized pieces, making it easier for employees to absorb and retain information.
This method minimizes disruptions to work schedules, eliminates the hassle of paperwork, and ensures that all safety communications are tracked and recorded accurately. Ultimately, using a digital platform like Safelyio enhances engagement, compliance, and overall safety performance on site. https://safelyio.com/
Hand Rolled Applicative User ValidationCode KataPhilip Schwarz
Could you use a simple piece of Scala validation code (granted, a very simplistic one too!) that you can rewrite, now and again, to refresh your basic understanding of Applicative operators <*>, <*, *>?
The goal is not to write perfect code showcasing validation, but rather, to provide a small, rough-and ready exercise to reinforce your muscle-memory.
Despite its grandiose-sounding title, this deck consists of just three slides showing the Scala 3 code to be rewritten whenever the details of the operators begin to fade away.
The code is my rough and ready translation of a Haskell user-validation program found in a book called Finding Success (and Failure) in Haskell - Fall in love with applicative functors.
E-Invoicing Implementation: A Step-by-Step Guide for Saudi Arabian CompaniesQuickdice ERP
Explore the seamless transition to e-invoicing with this comprehensive guide tailored for Saudi Arabian businesses. Navigate the process effortlessly with step-by-step instructions designed to streamline implementation and enhance efficiency.
Top Benefits of Using Salesforce Healthcare CRM for Patient Management.pdfVALiNTRY360
Salesforce Healthcare CRM, implemented by VALiNTRY360, revolutionizes patient management by enhancing patient engagement, streamlining administrative processes, and improving care coordination. Its advanced analytics, robust security, and seamless integration with telehealth services ensure that healthcare providers can deliver personalized, efficient, and secure patient care. By automating routine tasks and providing actionable insights, Salesforce Healthcare CRM enables healthcare providers to focus on delivering high-quality care, leading to better patient outcomes and higher satisfaction. VALiNTRY360's expertise ensures a tailored solution that meets the unique needs of any healthcare practice, from small clinics to large hospital systems.
For more info visit us https://valintry360.com/solutions/health-life-sciences
WWDC 2024 Keynote Review: For CocoaCoders AustinPatrick Weigel
Overview of WWDC 2024 Keynote Address.
Covers: Apple Intelligence, iOS18, macOS Sequoia, iPadOS, watchOS, visionOS, and Apple TV+.
Understandable dialogue on Apple TV+
On-device app controlling AI.
Access to ChatGPT with a guest appearance by Chief Data Thief Sam Altman!
App Locking! iPhone Mirroring! And a Calculator!!
Microservice Teams - How the cloud changes the way we workSven Peters
A lot of technical challenges and complexity come with building a cloud-native and distributed architecture. The way we develop backend software has fundamentally changed in the last ten years. Managing a microservices architecture demands a lot of us to ensure observability and operational resiliency. But did you also change the way you run your development teams?
Sven will talk about Atlassian’s journey from a monolith to a multi-tenanted architecture and how it affected the way the engineering teams work. You will learn how we shifted to service ownership, moved to more autonomous teams (and its challenges), and established platform and enablement teams.
Most important New features of Oracle 23c for DBAs and Developers. You can get more idea from my youtube channel video from https://youtu.be/XvL5WtaC20A
How Can Hiring A Mobile App Development Company Help Your Business Grow?ToXSL Technologies
ToXSL Technologies is an award-winning Mobile App Development Company in Dubai that helps businesses reshape their digital possibilities with custom app services. As a top app development company in Dubai, we offer highly engaging iOS & Android app solutions. https://rb.gy/necdnt
14. Mark Broadbent · https://twitter.com/retracement · mark.broadbent@sqlcloud.co.uk · http://tenbulls.co.uk
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