|By Sebastian Kruk||
|August 30, 2014 01:00 PM EDT||
Modern Application Performance Management (APM) solutions can be tremendously helpful in delivering end-to-end visibility into the application delivery chain: across all tiers and network sections, all the way to the end user. In previous blog posts we showed how to narrow down to various root causes of the problems that the end users might experience. Those issues ranged from infrastructure through application and network, and through the end-user client application or inefficient use of the software. When the problem comes from the end user application, e.g., a Web 2.0 Web site, user experience management (UEM) solutions can offer broad analysis of possible root causes. Similarly, when an APM fault domain algorithm points to the application, the DevOps team can go deep into the actually executed code and database queries to identify the root cause of the problem.
But what do you do when your APM tool points to the network as the fault domain? How do you identify the real cause behind the network problems? Most of the APM tools stop there, forcing the network team to use separate solutions to monitor the actual network packets.
In this article we show how an Application-Aware Network Performance Management (AANPM) suite can be used to not only zero in on the network problems as the fault domain, but also dive deeper to show the actual trace of network packets in the selected context, captured back at the time when the problem happened.
Isolating Fault Domain to the Network
In one of our blog posts we wrote how Fonterra used our APM tools to identify the problem with SAP application used in the milk churn scanning process. The operations team could easily isolate the fault domain to network problems (see Figure 1); they required, however, further analysis to identify the root cause behind that network problem.
Figure 1: The performance report indicates network problems as the fault domain
In some cases information about loss rate or zero window events is enough to successfully find and resolve the problem. In general, finding the root cause may require you to analyze more detailed, packet level views in order to see exactly what is causing this network performance problem. These details can not only help to determine why we experienced packet loss or zero window events, but also whether the problem was gradually ramping up or if there was a sudden flow control blockage, which would indicate congestion.
For example, a number of users start to experience performance degradation of the service and APM points to the network as the fault domain. The detailed, packet-level analysis can show that the whole service delivery process was blocked by failed initial name resolution.
What Really Happened in the Network?
Why is detailed packet-level analysis so important when our AANPM points to the network?
Let's first consider what happens when we determine fault domain with one of the application delivery tiers. The engineers responsible for that application can start analyzing logs or, better, drill down to single transaction execution steps and often isolate the problem to the actual line of code that was causing the whole performance degradation of the whole application.
However, when our AANPM tells us it is the network, there are no logs or code execution steps to drill down to. Unless we can deliver conclusive and actionable evidence in the form of detailed, packet-level analysis, the network team might have a problem determining the root cause and may remain skeptical whether the network is at fault at all.
This is exactly what happened to one of our customers. An APM solution had correctly identified that there was a performance problem with the web server. The reports showed who was affected and where the users affected by that problem were located when the problem was occurring. The system also pointed toward the network as the primary fault domain.
The network team tried to determine the root cause of the problem. They needed packet level data for that. But, capturing all traffic with a network protocol analyzer after the incident happened not only overloaded the IT team with unnecessary data, but eventually turned out to be a hit and miss.
What the team needed were the network packets at the time the problem occurred, and only those few packets that related to the actual communication realizing affected transactions.
Figure 2: You can drill down to analyze captured network packets in the context of given user operations
For Figure 3, and further insight, click here for the full article.
There is little doubt that Big Data solutions will have an increasing role in the Enterprise IT mainstream over time. Big Data at Cloud Expo - to be held November 1-3, 2016, at the Santa Clara Convention Center in Santa Clara, CA - has announced its Call for Papers is open. Cloud computing is being adopted in one form or another by 94% of enterprises today. Tens of billions of new devices are being connected to The Internet of Things. And Big Data is driving this bus. An exponential increase is...
Sep. 27, 2016 01:00 PM EDT Reads: 2,641
IoT is fundamentally transforming the auto industry, turning the vehicle into a hub for connected services, including safety, infotainment and usage-based insurance. Auto manufacturers – and businesses across all verticals – have built an entire ecosystem around the Connected Car, creating new customer touch points and revenue streams. In his session at @ThingsExpo, Macario Namie, Head of IoT Strategy at Cisco Jasper, will share real-world examples of how IoT transforms the car from a static p...
Sep. 27, 2016 01:00 PM EDT Reads: 1,585
SYS-CON Events announced today that Tintri Inc., a leading producer of VM-aware storage (VAS) for virtualization and cloud environments, will exhibit at the 19th International Cloud Expo, which will take place on November 1–3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. Tintri VM-aware storage is the simplest for virtualized applications and cloud. Organizations including GE, Toyota, United Healthcare, NASA and 6 of the Fortune 15 have said “No to LUNs.” With Tintri they mana...
Sep. 27, 2016 01:00 PM EDT Reads: 2,800
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...
Sep. 27, 2016 12:30 PM EDT Reads: 2,350
Whether they’re located in a public, private, or hybrid cloud environment, cloud technologies are constantly evolving. While the innovation is exciting, the end mission of delivering business value and rapidly producing incremental product features is paramount. In his session at @DevOpsSummit at 19th Cloud Expo, Kiran Chitturi, CTO Architect at Sungard AS, will discuss DevOps culture, its evolution of frameworks and technologies, and how it is achieving maturity. He will also cover various st...
Sep. 27, 2016 12:30 PM EDT Reads: 1,686
[session] Understanding the Inscrutable Chinese Internet By @CDSGlobalCloud | @CloudExpo #API #Cloud
If you had a chance to enter on the ground level of the largest e-commerce market in the world – would you? China is the world’s most populated country with the second largest economy and the world’s fastest growing market. It is estimated that by 2018 the Chinese market will be reaching over $30 billion in gaming revenue alone. Admittedly for a foreign company, doing business in China can be challenging. Often changing laws, administrative regulations and the often inscrutable Chinese Interne...
Sep. 27, 2016 12:26 PM EDT Reads: 125
SYS-CON Events has announced today that Roger Strukhoff has been named conference chair of Cloud Expo and @ThingsExpo 2016 Silicon Valley. The 19th Cloud Expo and 6th @ThingsExpo will take place on November 1-3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. "The Internet of Things brings trillions of dollars of opportunity to developers and enterprise IT, no matter how you measure it," stated Roger Strukhoff. "More importantly, it leverages the power of devices and the Interne...
Sep. 27, 2016 12:15 PM EDT Reads: 3,185
Complete Internet of Things (IoT) embedded device security is not just about the device but involves the entire product’s identity, data and control integrity, and services traversing the cloud. A device can no longer be looked at as an island; it is a part of a system. In fact, given the cross-domain interactions enabled by IoT it could be a part of many systems. Also, depending on where the device is deployed, for example, in the office building versus a factory floor or oil field, security ha...
Sep. 27, 2016 12:15 PM EDT Reads: 198
Internet of @ThingsExpo, taking place November 1-3, 2016, at the Santa Clara Convention Center in Santa Clara, CA, is co-located with the 19th International Cloud Expo and will feature technical sessions from a rock star conference faculty and the leading industry players in the world and ThingsExpo Silicon Valley Call for Papers is now open.
Sep. 27, 2016 12:15 PM EDT Reads: 4,542
"We have several customers now running private clouds. They're not as large as they should be but it's getting there. The adoption challenge has been pretty simple. Look at the world today of virtualization vs cloud," stated Nara Rajagopalan, CEO of 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.
Sep. 27, 2016 12:00 PM EDT Reads: 2,334
"My role is working with customers, helping them go through this digital transformation. I spend a lot of time talking to banks, big industries, manufacturers working through how they are integrating and transforming their IT platforms and moving them forward," explained William Morrish, General Manager Product Sales at Interoute, in this SYS-CON.tv interview at 18th Cloud Expo, held June 7-9, 2016, at the Javits Center in New York City, NY.
Sep. 27, 2016 12:00 PM EDT Reads: 3,847
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...
Sep. 27, 2016 12:00 PM EDT Reads: 3,483
SYS-CON Events announced today that China Unicom will exhibit at the 19th International Cloud Expo, which will take place on November 1–3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. China United Network Communications Group Co. Ltd ("China Unicom") was officially established in 2009 on the basis of the merger of former China Netcom and former China Unicom. China Unicom mainly operates a full range of telecommunications services including mobile broadband (GSM, WCDMA, LTE F...
Sep. 27, 2016 12:00 PM EDT Reads: 1,780
More and more companies are looking to microservices as an architectural pattern for breaking apart applications into more manageable pieces so that agile teams can deliver new features quicker and more effectively. What this pattern has done more than anything to date is spark organizational transformations, setting the foundation for future application development. In practice, however, there are a number of considerations to make that go beyond simply “build, ship, and run,” which changes ho...
Sep. 27, 2016 12:00 PM EDT Reads: 2,585
In his general session at 18th Cloud Expo, Lee Atchison, Principal Cloud Architect and Advocate at New Relic, discussed cloud as a ‘better data center’ and how it adds new capacity (faster) and improves application availability (redundancy). The cloud is a ‘Dynamic Tool for Dynamic Apps’ and resource allocation is an integral part of your application architecture, so use only the resources you need and allocate /de-allocate resources on the fly.
Sep. 27, 2016 11:45 AM EDT Reads: 2,724
Is your aging software platform suffering from technical debt while the market changes and demands new solutions at a faster clip? It’s a bold move, but you might consider walking away from your core platform and starting fresh. ReadyTalk did exactly that. In his General Session at 19th Cloud Expo, Michael Chambliss, Head of Engineering at ReadyTalk, will discuss why and how ReadyTalk diverted from healthy revenue and over a decade of audio conferencing product development to start an innovati...
Sep. 27, 2016 11:45 AM EDT Reads: 1,921
“We're a global managed hosting provider. Our core customer set is a U.S.-based customer that is looking to go global,” explained Adam Rogers, Managing Director at ANEXIA, in this SYS-CON.tv interview at 18th Cloud Expo, held June 7-9, 2016, at the Javits Center in New York City, NY.
Sep. 27, 2016 11:30 AM EDT Reads: 2,999
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.
Sep. 27, 2016 11:15 AM EDT Reads: 959
The vision of a connected smart home is becoming reality with the application of integrated wireless technologies in devices and appliances. The use of standardized and TCP/IP networked wireless technologies in line-powered and battery operated sensors and controls has led to the adoption of radios in the 2.4GHz band, including Wi-Fi, BT/BLE and 802.15.4 applied ZigBee and Thread. This is driving the need for robust wireless coexistence for multiple radios to ensure throughput performance and th...
Sep. 27, 2016 11:00 AM EDT Reads: 1,597
SYS-CON Events announced today that Secure Channels will exhibit at the 19th International Cloud Expo, which will take place on November 1–3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. The bedrock of Secure Channels Technology is a uniquely modified and enhanced process based on superencipherment. Superencipherment is the process of encrypting an already encrypted message one or more times, either using the same or a different algorithm.
Sep. 27, 2016 11:00 AM EDT Reads: 1,652