Welcome!

@DevOpsSummit Authors: Elizabeth White, Liz McMillan, Pat Romanski, Yeshim Deniz, Jyoti Bansal

Related Topics: @DevOpsSummit, Java IoT, Microservices Expo, Containers Expo Blog, SDN Journal

@DevOpsSummit: Article

Cloud's Provisioning Problem | @DevOpsSummit #IoT #DevOps #BigData

Cloud and software-defined architectures have brought to the fore the critical nature of load balancing

What DevOps Can Do About Cloud's Predictable Provisioning Problem

Go ahead. Name a cloud environment that doesn't include load balancing as the key enabler of elastic scalability. I've got coffee... so it's good, take your time...

Exactly. Load balancing - whether implemented as traditional high availability pairs or clustering - provides the means by which applications (and infrastructure, in many cases) scale horizontally. It is load balancing that is at the heart of elastic scalability models, and that provides a means to ensure availability and even improve performance of applications.

But simple load balancing alone isn't enough. Too many environments and architectures are wont to toss a simple, network-based solution at the problem and call it a day. But rudimentary load balancing techniques that rely solely on a set of metrics are doomed to fail eventually. That's because a simple number like "connection count" does not provide enough context to make an intelligent load balancing decision. An application instance may currently have only 100 connections while another has 500, but if the capacity of the former is only 200 while the capacity of the other is 5000, a decision based on "least connections" is not the right one.

Application-aware networking tells us that load balancing decisions - even rudimentary ones - should be made based on a variety of variables such as application load, response time, and capacity. That means a modern load balancing service capable of not just tracking these metrics but gathering them from the application instances under management.

(Un)Predictable Provisioning
In data centers, it is best practice to deploy application instances on similarly capable hardware. This is because doing so provides predictable capacity and performance that can be used to better scale an application and ensure compliance with service level expectations.

When moving to a cloud environment - whether public or private - this practice can be lost. In the public cloud, that's because you have no control over the underlying hardware capabilities - you can only specific the compute capabilities of an instance. In a private cloud, you have more control over this but may not have provisioning systems intelligent enough to provide the visibility you need to make a provisioning decision in real time.

That can lead to problems. Consider this nugget from a recent blog post:

One thing that I’ve learned is that you can end up on a variety of different hardware but they don’t always act the same. Stackdriver has been a great help with this. For example, if we’re firing up 6 web servers, Stackdriver can help us see that 5 are cruising along at 20% CPU, while one is at 50% CPU. It allows us to see and address that anomaly.

http://www.stackdriver.com/devops-focus-matt-trescot-studyblue/

Let's assume, for a moment, this is true. Because it can be. Anyone who's ever dealt with hardware servers knows it's true - hardware, though matched in terms of basic capacity, can wind up performing differently. That's due to a number of things including the natural degradation of capacity over time due to "wear and tear" as well as the possibility of misconfiguration or the presence of some other artifact or code that may be eating up cycles. operational axiom 2a

In any case, the reason is not as important as the fact that this happens. It's important because we know operational axiom #2: as load increases, performance decreases. It also follows that as load increases, capacity decreases because, well, capacity and load go hand in hand.

Thus, in a cloud environment the aforementioned situation presents a problem: one of the "servers" is at a disadvantage and is not going to perform as well as the other five. Not only that, but its capacity as understood (and likely configured manually) by the load balancing is now inaccurate. The load balancing service believes all six servers have a capacity of X connections, but the reality is that a higher CPU utilization rate can reduce that.

A simple load balancing service is not going to adjust because it doesn't have the visibility or intelligence to make that connection. Whether the service is configured to use round robin (almost never a good idea) or a least connections (can be an acceptable choice if all other factors are predictable) algorithm, service levels are going to degrade unless the service is aware enough to recognize the discordance occurring.

Thus, we end up with a situation in which predictable performance and availability are, well, not necessarily predictable. Which introduces operational risk that must, somehow be countered.

Correcting for Unpredictable Provisioning

state-of-apm-issuesIn enterprise-class data centers, application aware networking services are able to factor in not just connection counts and response times, but server load and a variety of other variables that can offset the unpredictability of provisioning processes. As noted earlier, application-aware load balancing services have the visibility and programmability necessary to monitor and measure the status of application instances and servers for a variety of metrics including CPU utilization (load).

What's perhaps even more interesting is that programmability enables extensibility of gathering and monitoring those statistics. If the application instance can present a variable which you deem critical for making load balancing decisions, programmability of the load balancing service makes it possible to incorporate that variable into its algorithm (or create a completely new one, if that's what it takes).

All these factors combine to answer the question, "Why does the network need to be dynamic?" or "Why do we need SD<insert preferred "N" or "DC" here>?"

Dynamic implies an ability to react in the face of unanticipated (unpredictable) situations. Unpredictable provisioning that can result in inconsistent capacity and performance has to be countered somewhere, and that somewhere is going to be upstream of the application instances exhibiting erratic behavior. Upstream is usually (and almost always in any of today's scalable architectures) an ADC or load balancing service.

That load balancing service must be application-aware and programmable if it's going to execute on its mission of maintaining performance and availability of applications in the face of the potentially unpredictable provisioning processes of cloud computing environments.

DevOps: More than just deployment
DevOps practitioners must become adept at not only understanding the complex relationships between performance and availability and capacity and load, but how to turn those business and operational expectations into reality by taking advantage of both application and network infrastructure capabilities.

DevOps isn't, after all, just about scripting and automation. Those are tools that enable devops practitioners to do something, and that something is more than just deploying apps - it's delivering them, too.

•   •   •

Excerpt from the State of APM Infographic courtesy of Germain Software, LLC.

More Stories By Lori MacVittie

Lori MacVittie is responsible for education and evangelism of application services available across F5’s entire product suite. Her role includes authorship of technical materials and participation in a number of community-based forums and industry standards organizations, among other efforts. MacVittie has extensive programming experience as an application architect, as well as network and systems development and administration expertise. Prior to joining F5, MacVittie was an award-winning Senior Technology Editor at Network Computing Magazine, where she conducted product research and evaluation focused on integration with application and network architectures, and authored articles on a variety of topics aimed at IT professionals. Her most recent area of focus included SOA-related products and architectures. She holds a B.S. in Information and Computing Science from the University of Wisconsin at Green Bay, and an M.S. in Computer Science from Nova Southeastern University.

@DevOpsSummit Stories
New competitors, disruptive technologies, and growing expectations are pushing every business to both adopt and deliver new digital services. This ‘Digital Transformation’ demands rapid delivery and continuous iteration of new competitive services via multiple channels, which in turn demands new service delivery techniques – including DevOps. In this power panel at @DevOpsSummit 20th Cloud Expo, moderated by DevOps Conference Co-Chair Andi Mann, panelists will examine how DevOps helps to meet the demands of Digital Transformation – including accelerating application delivery, closing feedback loops, enabling multi-channel delivery, empowering collaborative decisions, improving user experience, and ultimately meeting (and exceeding) business goals.
SYS-CON Events announced today that Progress, a global leader in application development, has been named “Bronze Sponsor” of SYS-CON's 20th International Cloud Expo®, which will take place on June 6-8, 2017, at the Javits Center in New York City, NY. Enterprises today are rapidly adopting the cloud, while continuing to retain business-critical/sensitive data inside the firewall. This is creating two separate data silos – one inside the firewall and the other outside the firewall. Cloud ISVs often get requests to connect these silos using technologies such as VPN; however, these tend to be difficult to manage and are not engineered for accessing business data from the cloud.
One of the biggest challenges with adopting a DevOps mentality is: new applications are easily adapted to cloud-native, microservice-based, or containerized architectures - they can be built for them - but old applications need complex refactoring. On the other hand, these new technologies can require relearning or adapting new, oftentimes more complex, methodologies and tools to be ready for production. In his general session at @DevOpsSummit at 20th Cloud Expo, Chris Brown, Solutions Marketing Manager at Nutanix, will explore how Nutanix is bringing these sides together - agility for pets, governance for cattle - in a single unified platform. With this combined approach, Nutanix removes silos - both technological and human - propelling your applications to a new level.
SYS-CON Events announced today that Interoute has been named “Bronze Sponsor” of SYS-CON's 20th International Cloud Expo®, which will take place on June 6-8, 2017, at the Javits Center in New York City, NY. Interoute is the owner operator of Europe's largest network and a global cloud services platform, which encompasses over 70,000 km of lit fiber, 15 data centers, 17 virtual data centers and 33 colocation centers, with connections to 195 additional partner data centers. Our full-service Unified ICT platform serves startups and international enterprises, as well as every major European telecommunications service provider and major operators across the world, global internet giants, governments and universities.
The 21st International Cloud Expo has announced that its Call for Papers is open. Cloud Expo, to be held October 31 - November 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA, brings together Cloud Computing, Big Data, Internet of Things, DevOps, Digital Transformation, Machine Learning and WebRTC to one location. With cloud computing driving a higher percentage of enterprise IT budgets every year, it becomes increasingly important to plant your flag in this fast-expanding business opportunity. Submit your speaking proposal today!
DevOps is often described as a combination of technology and culture. Without both, DevOps isn't complete. However, applying the culture to outdated technology is a recipe for disaster; as response times grow and connections between teams are delayed by technology, the culture will die. A Nutanix Enterprise Cloud has many benefits that provide the needed base for a true DevOps paradigm.
SYS-CON Events announced today that Carbonite will exhibit at SYS-CON's 20th International Cloud Expo®, which will take place on June 6-8, 2017, at the Javits Center in New York City, NY. Carbonite protects your entire IT footprint with the right level of protection for each workload, ensuring lower costs and dependable solutions with DoubleTake and Evault.
SYS-CON Events announced today that Twistlock, the leading provider of cloud container security solutions, will exhibit at SYS-CON's 20th International Cloud Expo®, which will take place on June 6-8, 2017, at the Javits Center in New York City, NY. Twistlock is the industry's first enterprise security suite for container security. Twistlock's technology addresses risks on the host and within the application of the container, enabling enterprises to consistently enforce security policies, monitor and audit activity and identify and isolate threats in a container or cluster of containers.
We build IoT infrastructure products - when you have to integrate different devices, different systems and cloud you have to build an application to do that but we eliminate the need to build an application. Our products can integrate any device, any system, any cloud regardless of protocol," explained Peter Jung, Chief Product Officer at Pulzze Systems, in this SYS-CON.tv interview at @ThingsExpo, held November 1-3, 2016, at the Santa Clara Convention Center in Santa Clara, CA
SYS-CON Events announced today that EARP Integration will exhibit at SYS-CON's 20th International Cloud Expo®, which will take place on June 6-8, 2017, at the Javits Center in New York City, NY. EARP Integration is a passionate software house. Since its inception in 2009 the company successfully delivers smart solutions for cities and factories that start their digital transformation. EARP provides bespoke solutions like, for example, advanced enterprise portals, business intelligence systems and mobile applications for international enterprises across different sectors such as Energy and Utilities, GreenTech, MedTech, FinTech, Facility Management and Housing, Automotive Manufacturing, and Sport. EARP also cooperates with international software houses by providing them with highly qualified and well-selected, multilingual teams for bigger projects.
SYS-CON Events announced today that Ocean9will exhibit at SYS-CON's 20th International Cloud Expo®, which will take place on June 6-8, 2017, at the Javits Center in New York City, NY. Ocean9 provides cloud services for Backup, Disaster Recovery (DRaaS) and instant Innovation, and redefines enterprise infrastructure with its cloud native subscription offerings for mission critical SAP workloads.
SYS-CON Events announced today that T-Mobile will exhibit at SYS-CON's 20th International Cloud Expo®, which will take place on June 6-8, 2017, at the Javits Center in New York City, NY. As America's Un-carrier, T-Mobile US, Inc., is redefining the way consumers and businesses buy wireless services through leading product and service innovation. The Company's advanced nationwide 4G LTE network delivers outstanding wireless experiences to 67.4 million customers who are unwilling to compromise on quality and value.
SYS-CON Events announced today that SoftLayer, an IBM Company, has been named “Gold Sponsor” of SYS-CON's 18th Cloud Expo, which will take place on June 7-9, 2016, at the Javits Center in New York, New York. SoftLayer, an IBM Company, provides cloud infrastructure as a service from a growing number of data centers and network points of presence around the world. SoftLayer’s customers range from Web startups to global enterprises.
SYS-CON Events announced today that CollabNet, a global leader in enterprise software development, release automation and DevOps solutions, will be a Bronze Sponsor of SYS-CON's 20th International Cloud Expo®, taking place from June 6-8, 2017, at the Javits Center in New York City, NY. CollabNet offers a broad range of solutions with the mission of helping modern organizations deliver quality software at speed. The company’s latest innovation, the DevOps Lifecycle Manager (DLM), supports Value Stream Mapping for the development and operations tool chain by offering DevOps Tool Chain Integration and Traceability; DevOps Tool Chain Orchestration; and DevOps Insight and Intelligence. CollabNet also offers traditional application lifecycle management, ALM, for the enterprise through its TeamForge product.
As DevOps methodologies expand their reach across the enterprise, organizations face the daunting challenge of adapting related cloud strategies to ensure optimal alignment, from managing complexity to ensuring proper governance. How can culture, automation, legacy apps and even budget be reexamined to enable this ongoing shift within the modern software factory?
SYS-CON Events announced today that Hitachi Data Systems, a wholly owned subsidiary of Hitachi LTD., will exhibit at SYS-CON's 20th International Cloud Expo®, which will take place on June 6-8, 2017, at the Javits Center in New York City. Hitachi Data Systems (HDS) will be featuring the Hitachi Content Platform (HCP) portfolio. This is the industry’s only offering that allows organizations to bring together object storage, file sync and share, cloud storage gateways, and sophisticated search and analytics to create a tightly integrated, simple and smart cloud-storage solution. HCP provides massive scale, multiple storage tiers, powerful security, cloud capabilities, and multitenancy with configurable attributes for each tenant, all backed by legendary Hitachi reliability. Designed to preserve data for long durations, HCP carries built-in data protection mechanisms and is designed to flue...
SYS-CON Events announced today that Peak 10, Inc., a national IT infrastructure and cloud services provider, will exhibit at SYS-CON's 20th International Cloud Expo®, which will take place on June 6-8, 2017, at the Javits Center in New York City, NY. Peak 10 provides reliable, tailored data center and network services, cloud and managed services. Its solutions are designed to scale and adapt to customers’ changing business needs, enabling them to lower costs, improve performance and focus internal resources on core competencies.
SYS-CON Events announced today that delaPlex will exhibit at SYS-CON's @CloudExpo, which will take place on June 6-8, 2017, at the Javits Center in New York City, NY. delaPlex pioneered Software Development as a Service (SDaaS), which provides scalable resources to build, test, and deploy software. It’s a fast and more reliable way to develop a new product or expand your in-house team.
SYS-CON Events announced today that Cloud Academy will exhibit at SYS-CON's 20th International Cloud Expo®, which will take place on June 6-8, 2017, at the Javits Center in New York City, NY. Cloud Academy is the industry’s most innovative, vendor-neutral cloud technology training platform. Cloud Academy provides continuous learning solutions for individuals and enterprise teams for Amazon Web Services, Microsoft Azure, Google Cloud Platform, and the most popular cloud computing technologies. Get certified, manage the full lifecycle of your cloud-based resources, and build your knowledge based using Cloud Academy’s expert-created content, comprehensive Learning Paths, and innovative Hands-on Labs.
SYS-CON Events announced today that Juniper Networks (NYSE: JNPR), an industry leader in automated, scalable and secure networks, will exhibit at SYS-CON's 20th International Cloud Expo®, which will take place on June 6-8, 2017, at the Javits Center in New York City, NY. Juniper Networks challenges the status quo with products, solutions and services that transform the economics of networking. The company co-innovates with customers and partners to deliver automated, scalable and secure networks with agility, performance and value.
SYS-CON Events announced today that Fusion, a leading provider of cloud services, will exhibit at SYS-CON's 20th International Cloud Expo®, which will take place on June 6-8, 2017, at the Javits Center in New York City, NY. Fusion, a leading provider of integrated cloud solutions to small, medium and large businesses, is the industry’s single source for the cloud. Fusion’s advanced, proprietary cloud service platform enables the integration of leading edge solutions in the cloud, including cloud communications, cloud connectivity, and cloud computing. Fusion’s innovative, yet proven cloud solutions lower our customers’ cost of ownership, and deliver new levels of security, flexibility, scalability, and speed of deployment.
SYS-CON Events announced today that DivvyCloud will exhibit at SYS-CON's 20th International Cloud Expo®, which will take place on June 6-8, 2017, at the Javits Center in New York City, NY. DivvyCloud software enables organizations to achieve their cloud computing goals by simplifying and automating security, compliance and cost optimization of public and private cloud infrastructure. Using DivvyCloud, customers can leverage programmatic Bots to identify and remediate common cloud problems in real time. DivvyCloud was founded by seasoned technologists who understand first hand what is necessary to succeed in today's fast-changing, multi-cloud world. For more information, visit: www.divvycloud.com.
As enterprise cloud becomes the norm, businesses and government programs must address compounded regulatory compliance related to data privacy and information protection. The most recent, Controlled Unclassified Information and the EU’s GDPR have board level implications and companies still struggle with demonstrating due diligence. Developers and DevOps leaders, as part of the pre-planning process and the associated supply chain, could benefit from updating their code libraries and design by incorporating changes. In her session at 20th Cloud Expo, Maria Horton, CEO of EmeSec, will discuss how addressing the new liabilities of sensitive data tracking for GDPR and CUI via code design can reap huge benefits for organizations and for developers that due just that whether in cloud, IoT or traditional environments.
SYS-CON Events announced today that WineSOFT will exhibit at SYS-CON's 20th International Cloud Expo®, which will take place on June 6-8, 2017, at the Javits Center in New York City, NY. Based in Seoul and Irvine, WineSOFT is an innovative software house focusing on internet infrastructure solutions. The venture started as a bootstrap start-up in 2010 by focusing on making the internet faster and more powerful. WineSOFT’s knowledge is based on the expertise of TCP/IP, VPN, SSL, peer-to-peer, mobile browser, and live streaming solutions.
SYS-CON Events announced today that HTBase will exhibit at SYS-CON's 20th International Cloud Expo®, which will take place on June 6-8, 2017, at the Javits Center in New York City, NY. HTBase (Gartner 2016 Cool Vendor) delivers a Composable IT infrastructure solution architected for agility and increased efficiency. It turns compute, storage, and fabric into fluid pools of resources that are easily composed and re-composed to meet each application’s needs. With HTBase, companies can quickly provision resources and deploy unique, mission-critical, self-designed solutions to add-onto or create any type of infrastructure as per the business requirement. HTBase is the first company to enable a true multi-cloud strategy, enabling organizations to automate movement of data and workloads between private and public clouds. This means that organizations can now move data and workloads between pub...