Click here to close now.




Welcome!

@CloudExpo Authors: Liz McMillan, Pat Romanski, Elizabeth White, Kevin Jackson, Sanjay Zalavadia

Related Topics: @DevOpsSummit, Java IoT, Microservices Expo, Linux Containers, @CloudExpo, @BigDataExpo

@DevOpsSummit: Article

The DevOps Database | Part 3

Applying Feedback Loops to Database Change Management

In the third post in this series, I’d like to talk about the Second Way of DevOps: Amplifying Feedback Loops.  Here’s a refresher on The Second Way from my introductory post in this series:

The Second Way: Amplify Feedback Loops – This Way deals primarily with facilitating easier and faster communication between all individuals in a DevOps organization.  The goals of this step are to foster better understanding of all internal and external customers in the process and to develop an accessible body of knowledge to replace the dependence on expertise scattered across individuals.

I’ve stated before in this series that Database Change Management poses a unique challenge when your organization is shifting to an agile development methodology and implementing DevOps patterns.  Unlike other areas of your application stack, responsibility for managing application schema straddles two groups operating under somewhat opposed expectations. The development group is on the hook for producing more and more business critical features and releases at an ever increasing rate.  DBAs are tasked with providing a secure, highly available data platform and protecting the integrity of the organization’s priceless data.  The rate of schema change required by development to satisfy expectations can run head long into a database change process that is deliberate and metered by necessity to avoid downtime and data loss.  In organizations where these two groups are isolated from each other, you have the makings of a bottle neck in your release process.

The solution to this problem is embodied by The Second Way of DevOps. Communicate early, communicate often, communicate broadly, and prepare for what’s ahead. The tricky part is implementing the solution in a way that’s meaningful to every stakeholder in an organization’s application group.  At Datical, we’ve spent just as much time on how we organize and present the data associated with application schema changes as we have on automating the deployment of these changes.  We’ve rallied around the following key concepts to bring the The Second Way of DevOps to Database Change Management.

Proactive, Predictive Change Analysis
In an organization where development works independently of the database group, truly understanding the impact a stack of SQL scripts will have on downstream environments is a tedious and time consuming task.  Before these changes can be promoted, target environments must be meticulously evaluated for conflicts and dependencies that will impact the deployment process.  This often involves manual reviews and comparisons of diagrams and database dumps of complex environments. Achieving a high degree of confidence in the success of the proposed updates is difficult because it is so easy to overlook something.  Datical has developed a patent pending simulation feature called Forecast that automates this process.  The Forecast feature builds an in memory model of the target environment, simulates proposed changes on top of that model, and warns of potential error conditions, data loss and performance issues without touching the target database.  Because there is no impact to target environments, database administrators can Forecast changes several times during the development cycle to get ahead of issues that would normally be discovered much later in a pre-release review.  Development gets regular feedback on the changes they are proposing and can address issues that arise during the initial development phase when it is easier and safer to resolve them.   The two teams are working in unison to ensure a safe database deployment that works the first time without surprises.

Always Remember Where You Came From
Database changes are usually designed to address the immediate goals of an organization.  Once one set of requirements has been satisfied by a release, the motivations for the design decisions made for that release generally fades away as new requirements come along and new business initiatives take center stage.  Comments in SQL scripts and on the database objects themselves can be helpful in determining why things are the way they are, but these traces of the past are scattered everywhere. Making sense of the whole is an exercise in archaeology.   This was one of the driving forces behind our model based approach to database change management.  Our model is architected to provide a living history of your application schema.  Individual changes are tied to the specific requirement and release that necessitated them.  This data lives in the model so the information you need to make intelligent design decisions is right in front of you when you need it.

Know Where You Are
By tying the business reasons behind each schema change in the model, this information can be tracked in each database instance as it’s updated and included in Forecast, Deploy, and historical reports.  Tracking the changes in each instance and providing detailed reports allows you to easily disseminate information, effectively gate deployment steps, and quickly satisfy audit requirements. When everyone in your organization has access to thorough accounts of the Who, What, Where, When, and Why of any single database change in any environment, everyone is operating on the same level and can more effectively work towards a common goal.

Know Where You’re Headed
The model also facilitates concurrent development on multiple releases of a project.  By tracking changes made for several different releases in a single model, the development teams working on these releases are able to collaborate and stay ahead of changes made by other teams that may impact future releases.  Developers are able to unify redundant changes and eliminate conflicting changes as they implement instead of spending time on redesign later in the process when time is scarce and the cost of change is high.

More Stories By Pete Pickerill

Pete Pickerill is Vice President of Products and Co-founder of Datical. Pete is a software industry veteran who has built his career in Austin’s technology sector. Prior to co-founding Datical, he was employee number one at Phurnace Software and helped lead the company to a high profile acquisition by BMC Software, Inc. Pete has spent the majority of his career in successful startups and the companies that acquired them including Loop One (acquired by NeoPost Solutions), WholeSecurity (acquired by Symantec, Inc.) and Phurnace Software.

@CloudExpo Stories
IoT offers a value of almost $4 trillion to the manufacturing industry through platforms that can improve margins, optimize operations & drive high performance work teams. By using IoT technologies as a foundation, manufacturing customers are integrating worker safety with manufacturing systems, driving deep collaboration and utilizing analytics to exponentially increased per-unit margins. However, as Benoit Lheureux, the VP for Research at Gartner points out, “IoT project implementers often ...
Unless your company can spend a lot of money on new technology, re-engineering your environment and hiring a comprehensive cybersecurity team, you will most likely move to the cloud or seek external service partnerships. In his session at 18th Cloud Expo, Darren Guccione, CEO of Keeper Security, revealed what you need to know when it comes to encryption in the cloud.
"We work in the area of Big Data analytics and Big Data analytics is a very crowded space - you have Hadoop, ETL, warehousing, visualization and there's a lot of effort trying to get these tools to talk to each other," explained Mukund Deshpande, head of the Analytics practice at Accelerite, in this SYS-CON.tv interview at 18th Cloud Expo, held June 7-9, 2016, at the Javits Center in New York City, NY.
Edge Hosting has announced a partnership with and the availability of CloudFlare, a web application firewall, CDN and DDoS mitigation service. “This partnership enhances Edge Hosting’s world class, perimeter layer, application (layer 7) defensive mechanism,” said Mark Houpt, Edge Hosting CISO. “The goal was to enable a new layer of customer controlled defense and compliance through the application of DDoS filters and mitigations, the web application firewall (WAF) feature and the added benefit ...
Redis is not only the fastest database, but it is the most popular among the new wave of databases running in containers. Redis speeds up just about every data interaction between your users or operational systems. In his session at 19th Cloud Expo, Dave Nielsen, Developer Advocate, Redis Labs, will share the functions and data structures used to solve everyday use cases that are driving Redis' popularity.
"SpeedyCloud's specialty lies in providing cloud services - we provide IaaS for Internet and enterprises companies," explained Hao Yu, CEO and co-founder of SpeedyCloud, in this SYS-CON.tv interview at 18th Cloud Expo, held June 7-9, 2016, at the Javits Center in New York City, NY.
Your business relies on your applications and your employees to stay in business. Whether you develop apps or manage business critical apps that help fuel your business, what happens when users experience sluggish performance? You and all technical teams across the organization – application, network, operations, among others, as well as, those outside the organization, like ISPs and third-party providers – are called in to solve the problem.
Creating replica copies to tolerate a certain number of failures is easy, but very expensive at cloud-scale. Conventional RAID has lower overhead, but it is limited in the number of failures it can tolerate. And the management is like herding cats (overseeing capacity, rebuilds, migrations, and degraded performance). Download Slide Deck: ▸ Here In his general session at 18th Cloud Expo, Scott Cleland, Senior Director of Product Marketing for the HGST Cloud Infrastructure Business Unit, discusse...
"Tintri was started in 2008 with the express purpose of building a storage appliance that is ideal for virtualized environments. We support a lot of different hypervisor platforms from VMware to OpenStack to Hyper-V," explained Dan Florea, Director of Product Management at Tintri, in this SYS-CON.tv interview at 18th Cloud Expo, held June 7-9, 2016, at the Javits Center in New York City, NY.
Machine Learning helps make complex systems more efficient. By applying advanced Machine Learning techniques such as Cognitive Fingerprinting, wind project operators can utilize these tools to learn from collected data, detect regular patterns, and optimize their own operations. In his session at 18th Cloud Expo, Stuart Gillen, Director of Business Development at SparkCognition, discussed how research has demonstrated the value of Machine Learning in delivering next generation analytics to imp...
It's easy to assume that your app will run on a fast and reliable network. The reality for your app's users, though, is often a slow, unreliable network with spotty coverage. What happens when the network doesn't work, or when the device is in airplane mode? You get unhappy, frustrated users. An offline-first app is an app that works, without error, when there is no network connection. In his session at 18th Cloud Expo, Bradley Holt, a Developer Advocate with IBM Cloud Data Services, discussed...
The cloud promises new levels of agility and cost-savings for Big Data, data warehousing and analytics. But it’s challenging to understand all the options – from IaaS and PaaS to newer services like HaaS (Hadoop as a Service) and BDaaS (Big Data as a Service). In her session at @BigDataExpo at @ThingsExpo, Hannah Smalltree, a director at Cazena, provided an educational overview of emerging “as-a-service” options for Big Data in the cloud. This is critical background for IT and data profession...
In the world of DevOps there are ‘known good practices’ – aka ‘patterns’ – and ‘known bad practices’ – aka ‘anti-patterns.' Many of these patterns and anti-patterns have been developed from real world experience, especially by the early adopters of DevOps theory; but many are more feasible in theory than in practice, especially for more recent entrants to the DevOps scene. In this power panel at @DevOpsSummit at 18th Cloud Expo, moderated by DevOps Conference Chair Andi Mann, panelists discusse...
A strange thing is happening along the way to the Internet of Things, namely far too many devices to work with and manage. It has become clear that we'll need much higher efficiency user experiences that can allow us to more easily and scalably work with the thousands of devices that will soon be in each of our lives. Enter the conversational interface revolution, combining bots we can literally talk with, gesture to, and even direct with our thoughts, with embedded artificial intelligence, wh...
Connected devices and the industrial internet are growing exponentially every year with Cisco expecting 50 billion devices to be in operation by 2020. In this period of growth, location-based insights are becoming invaluable to many businesses as they adopt new connected technologies. Knowing when and where these devices connect from is critical for a number of scenarios in supply chain management, disaster management, emergency response, M2M, location marketing and more. In his session at @Th...
As organizations shift towards IT-as-a-service models, the need for managing and protecting data residing across physical, virtual, and now cloud environments grows with it. Commvault can ensure protection, access and E-Discovery of your data – whether in a private cloud, a Service Provider delivered public cloud, or a hybrid cloud environment – across the heterogeneous enterprise. In his general session at 18th Cloud Expo, Randy De Meno, Chief Technologist - Windows Products and Microsoft Part...
In his keynote at 18th Cloud Expo, Andrew Keys, Co-Founder of ConsenSys Enterprise, provided an overview of the evolution of the Internet and the Database and the future of their combination – the Blockchain. Andrew Keys is Co-Founder of ConsenSys Enterprise. He comes to ConsenSys Enterprise with capital markets, technology and entrepreneurial experience. Previously, he worked for UBS investment bank in equities analysis. Later, he was responsible for the creation and distribution of life sett...
What does it look like when you have access to cloud infrastructure and platform under the same roof? Let’s talk about the different layers of Technology as a Service: who cares, what runs where, and how does it all fit together. In his session at 18th Cloud Expo, Phil Jackson, Lead Technology Evangelist at SoftLayer, an IBM company, spoke about the picture being painted by IBM Cloud and how the tools being crafted can help fill the gaps in your IT infrastructure.
Cloud Expo, Inc. has announced today that Andi Mann returns to 'DevOps at Cloud Expo 2016' as Conference Chair The @DevOpsSummit at Cloud Expo will take place on November 1-3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. "DevOps is set to be one of the most profound disruptions to hit IT in decades," said Andi Mann. "It is a natural extension of cloud computing, and I have seen both firsthand and in independent research the fantastic results DevOps delivers. So I am excited t...
"delaPlex is a software development company. We do team-based outsourcing development," explained Mark Rivers, COO and Co-founder of delaPlex Software, in this SYS-CON.tv interview at 18th Cloud Expo, held June 7-9, 2016, at the Javits Center in New York City, NY.