Comments
yourfanat wrote: I am using another tool for Oracle developers - dbForge Studio for Oracle. This IDE has lots of usefull features, among them: oracle designer, code competion and formatter, query builder, debugger, profiler, erxport/import, reports and many others. The latest version supports Oracle 12C. More information here.
Cloud Computing
Conference & Expo
November 2-4, 2009 NYC
Register Today and SAVE !..

2008 West
DIAMOND SPONSOR:
Data Direct
SOA, WOA and Cloud Computing: The New Frontier for Data Services
PLATINUM SPONSORS:
Red Hat
The Opening of Virtualization
GOLD SPONSORS:
Appsense
User Environment Management – The Third Layer of the Desktop
Cordys
Cloud Computing for Business Agility
EMC
CMIS: A Multi-Vendor Proposal for a Service-Based Content Management Interoperability Standard
Freedom OSS
Practical SOA” Max Yankelevich
Intel
Architecting an Enterprise Service Router (ESR) – A Cost-Effective Way to Scale SOA Across the Enterprise
Sensedia
Return on Assests: Bringing Visibility to your SOA Strategy
Symantec
Managing Hybrid Endpoint Environments
VMWare
Game-Changing Technology for Enterprise Clouds and Applications
Click For 2008 West
Event Webcasts

2008 West
PLATINUM SPONSORS:
Appcelerator
Get ‘Rich’ Quick: Rapid Prototyping for RIA with ZERO Server Code
Keynote Systems
Designing for and Managing Performance in the New Frontier of Rich Internet Applications
GOLD SPONSORS:
ICEsoft
How Can AJAX Improve Homeland Security?
Isomorphic
Beyond Widgets: What a RIA Platform Should Offer
Oracle
REAs: Rich Enterprise Applications
Click For 2008 Event Webcasts
In many cases, the end of the year gives you time to step back and take stock of the last 12 months. This is when many of us take a hard look at what worked and what did not, complete performance reviews, and formulate plans for the coming year. For me, it is all of those things plus a time when I u...
SYS-CON.TV
DNS Experience Tests | @CloudExpo @CatchPoint #APM #DevOps
When monitoring and analyzing the health of your online systems, you need a broad arsenal of different tools

DNS Experience Tests: A Key Cog in the Online Ecosystem
By Mehdi Daoudi

A company’s collection of online systems is like a delicate ecosystem – all components must integrate with and complement each other, and one single malfunction in any of them can bring the entire system to a screeching halt.

That’s why, when monitoring and analyzing the health of your online systems, you need a broad arsenal of different tools for your different needs. In addition to a wide-angle lens that provides a snapshot of the overall health of your system, you must also have precise, scalpel-like tools that can isolate and analyze all of those different components (DNS, CDNs, internal and external servers, third-party tags, etc.).

Catchpoint was designed to be that exact kind of precision tool. When evaluating the health of your systems, a simple availability test is useful, but it only a basic binary state: you’re either up or you’re down. Figuring out why you are down, or why your customers are waiting longer than they should for a page to load, is a wholly different matter, and requires precise diagnostic and analytical capabilities in order to provide you with actionable data.

Of these many different parts that make up an online system, DNS is perhaps the most important. It’s the very first interaction that a customer has with an online brand, and therefore having a rapid DNS lookup and resolution process is vital to maintaining an exceptional customer experience. Yet to properly assess your DNS health, you need that aforementioned scalpel, not a broad sword. This is why Catchpoint has maintained close relationships with DNS solution providers such as NS1, keeping open channels of communication in order to create the most precise tools possible.

This type of relationship has manifested itself positively for NS1, which uses Catchpoint tests to ensure that they are providing their customers with the best possible DNS resolution times, but it’s equally important for clients of those providers to monitor their own DNS performance to detect any issues that the vendor might be missing.

One way to drill down and gain additional insight into a DNS performance issue is through the different types of DNS monitors that Catchpoint offers. To play out a scenario, let’s say that you catch a DNS resolution problem in a basic browser test:

Chrome test

While this data shows that your users are suffering from bad experience due to DNS latency, you have no way of knowing where the latency occurred in the DNS resolution process. To gain this information, you need a DNS monitoring solution that shows performance and error data for all the different steps and servers in the DNS chain. Additionally, you can keep an eye on specific types of records (Answers, Authoritative Name Servers, or Additional Records) from the DNS query, which allows you to detect issues such as wrong TTLs, DNS Cache Poisoning, misconfigurations, etc.

This is imperative when it comes to detecting a third party DNS vendor’s errors, because most organizations rely on external DNS registrars and vendors, but have little visibility in their performance and availability.

8-3 blog image-2_705_left[1]

Getting back to our hypothetical problem, once we run our DNS Experience tests, we get a result that looks like this:

DNS Experience Test

In this test, which hits a multitude of different name servers in succession, we see intermittent spikes in performance (blue line chart) and drops in availability (green line chart), which tells us that the problem is isolated to specific name servers as opposed to the whole lot of them. Therefore, we need to run DNS Direct tests to isolate each of those name servers:

dnsDirect

Now the exact source of the problem becomes clear. There’s one specific name server which has failed multiple times in the test timeframe, which means that we now have actionable data to work with. The DNS provider, if it hasn’t already located the source of the problem through the same process, can be made aware of the issue so that they can take that server offline while they fix the problem.

In addition to the advanced insight that specific monitors provide, one of Catchpoint’s strongest attributes is our global node coverage. As a global DNS provider, NS1 knows that the ability to test their servers from as many different locations as possible is imperative to understanding the full scope of end users’ DNS experience. NS1 uses Catchpoint nodes around the world to collect data, and then using Catchpoint’s Push/Pull APIs, they can input that data into any number of different tools in order to make it actionable.

Just like the ecosystem of different components that make up modern online systems, there is an ecosystem of tools of similar size and scope to keep an eye on all of those components. Catchpoint is a cog in that ecosystem; this is why it was designed to play nicely with other alerting, communication, and monitoring tools that IT Ops professionals regularly use. There are Catchpoint integrations in place with Slack, VictorOps, PagerDuty, Zapier, etc., and the APIs work with many other different tools, including (as NS1 themselves wrote about) OpenTDSB, an open source time series database.

The importance of getting precise, actionable data cannot be overstated when looking at the overall importance of digital performance analytics. By getting the most out of all the tools available to you and making sure that they complement and work well with each other can make all the difference in the health of your online systems.

The post DNS Experience Tests: A Key Cog in the Online Ecosystem appeared first on Catchpoint's Blog.

About Mehdi Daoudi
Catchpoint radically transforms the way businesses manage, monitor, and test the performance of online applications. Truly understand and improve user experience with clear visibility into complex, distributed online systems.

Founded in 2008 by four DoubleClick / Google executives with a passion for speed, reliability and overall better online experiences, Catchpoint has now become the most innovative provider of web performance testing and monitoring solutions. We are a team with expertise in designing, building, operating, scaling and monitoring highly transactional Internet services used by thousands of companies and impacting the experience of millions of users. Catchpoint is funded by top-tier venture capital firm, Battery Ventures, which has invested in category leaders such as Akamai, Omniture (Adobe Systems), Optimizely, Tealium, BazaarVoice, Marketo and many more.

SOA World Latest Stories
In his session at 20th Cloud Expo, Scott Davis, CTO of Embotics, discussed how automation can provide the dynamic management required to cost-effectively deliver microservices and container solutions at scale. He also discussed how flexible automation is the key to effectively bridging...
Modern software design has fundamentally changed how we manage applications, causing many to turn to containers as the new virtual machine for resource management. As container adoption grows beyond stateless applications to stateful workloads, the need for persistent storage is founda...
SYS-CON Events announced today that DatacenterDynamics has been named “Media Sponsor” of SYS-CON's 18th International Cloud Expo, which will take place on June 7–9, 2016, at the Javits Center in New York City, NY. DatacenterDynamics is a brand of DCD Group, a global B2B media and publ...
Most DevOps journeys involve several phases of maturity. Research shows that the inflection point where organizations begin to see maximum value is when they implement tight integration deploying their code to their infrastructure. Success at this level is the last barrier to at-will d...
DevOpsSummit New York 2018, colocated with CloudEXPO | DXWorldEXPO New York 2018 will be held November 11-13, 2018, in New York City. Digital Transformation (DX) is a major focus with the introduction of DXWorldEXPO within the program. Successful transformation requires a laser focus ...
CloudEXPO New York 2018, colocated with DXWorldEXPO New York 2018 will be held November 11-13, 2018, in New York City and will bring together Cloud Computing, FinTech and Blockchain, Digital Transformation, Big Data, Internet of Things, DevOps, AI, Machine Learning and WebRTC to one l...
Subscribe to the World's Most Powerful Newsletters
Subscribe to Our Rss Feeds & Get Your SYS-CON News Live!
Click to Add our RSS Feeds to the Service of Your Choice:
Google Reader or Homepage Add to My Yahoo! Subscribe with Bloglines Subscribe in NewsGator Online
myFeedster Add to My AOL Subscribe in Rojo Add 'Hugg' to Newsburst from CNET News.com Kinja Digest View Additional SYS-CON Feeds
Publish Your Article! Please send it to editorial(at)sys-con.com!

Advertise on this site! Contact advertising(at)sys-con.com! 201 802-3021


SYS-CON Featured Whitepapers
ADS BY GOOGLE