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Performance, Scalability and Architecture

Andreas Grabner

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Top Stories by Andreas Grabner

How to Performance Monitor All Your Applications on a Single Dashboard It's become easy to monitor applications that are deployed on hundreds of servers - thanks to the advances in application performance management tools. But the more data you collect the harder it is to visualize the health state in a way that a single dashboard tells you both the overall status as well as the problematic component. Eugene Turetsky (Dynatrace) and Stephan Levesque (SSQ Financial Group) shared their solution for monitoring large IT infrastructures that contain several hundred components that support SSQ's most-critical applications running on a variety of technology stacks including WebLogic, Oracle Databases, Ingres Databases, and WebSphere MQs. When Stephan showed me his SSQ dashboards, I knew I had to write a blog about this. Stephan agreed to share these details with a larger au... (more)

Top PHP Performance Tips for Continuous Delivery | @DevOpsSummit [#DevOps]

Are you developing or hosting PHP applications? Are you doing performance sanity checks along your delivery pipeline? No? Not Yet? Then start with a quick check. It only takes 15 minutes and it really pays off. As a developer you can improve your code, and as somebody responsible for your build pipeline you can automate these checks and enforce additional quality gates. And as a PHP Hosting company / group you will be able optimize your deployment and run more of these apps and sustain more load on the same infrastructure. Just like Java, .NET, and Ruby type applications, the to... (more)

Recursive Browser Redirect Loops | @DevOpsSummit [#DevOps]

Performance Impact of Recursive Browser Redirect Loops 100% Coverage I just recently wrote a blog about BOTs causing unwanted traffic on our servers. Right after I wrote this blog I was notified about yet another "interesting" and unusual load behavior on our download page which is used by customers to download latest product versions and updates: If you see such a load behavior you typically assume that you just released a new product version or maybe an update to our agents and many people are downloading it like crazy. Unfortunately that was not the case. The spike in traffic ... (more)

Web Service Monitoring 101: Bad Deployments | @DevOpsSummit [#DevOps]

Web Service Monitoring 101: Identifying Bad Deployments Have you ever deployed a change to production and thought "All went well - Systems are operating as expected!" but then you had to deal with users complaining that they keep running into errors? When deployments fail you don't want your users to be the first to tell you about it: Sit down with the Business and Dev to define how and what to monitor We recently moved some of our systems between two of our data centers - even moving some components to the public cloud. Everything was prepared well, system monitoring was set u... (more)

Don’t Trust Your Log Files | @DevOpsSummit [#DevOps]

Don’t Trust Your Log Files: How and Why to Monitor All Exceptions I would say that only one out of a million exceptions thrown in an application actually makes it to a log file - unless you run your application in verbose logging mode - Do you agree? No? Here is why I think that is: because most exceptions are handled by your code or by the frameworks your app uses. Here is a chart from an enterprise application showing that there are about 4000x more custom application exception objects thrown than important log messages written: 4000 times more Exceptions than log messages: Ca... (more)