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Wolfgang Gottesheim

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Top Stories by Wolfgang Gottesheim

Does the following situation sound familiar? From one minute to the other, your production servers grind to a halt, terse emails are complemented by equally hectic phone calls, and the first order of business is to get back up and running. After the dust settles, you're usually left with a pile of log files and the assignment of figuring out what happened, why it happened, and what to do to keep it from happening again. A common first step is trying to reproduce what has gone wrong. More often than not, this consumes a considerable amount of time that would be better spent on actually fixing the problem. In this first blog post of a series, I will present a Step-by-Step Guide to Diagnose Stuck Transactions within minutes and show how a modern APM Solution helps to pinpoint common production problems, without spending hours on reproducing it at first. The Problem: Re... (more)

The DevOps Way to Solve JVM Memory Issues

The killer in any IT operation is unplanned work. Unplanned work may go by many names: firefighting, war rooms, Sev 1 incidents. The bottom line is that Operations must stop whatever planned work it was doing to manage this drill. This means little or no normal work is being accomplished. It is a scenario most of you will be familiar with: your application servers are humming along happily until suddenly, without an obvious reason, memory usage starts to increase, soon followed by longer garbage collection suspensions that finally force you to restart the application. The operati... (more)