Troubleshooting Java Performance: Detecting Anti-Patterns with Open Source Tools

© Erik Ostermueller 2017

Erik OstermuellerTroubleshooting Java Performancehttps://doi.org/10.1007/978-1-4842-2979-8_10

10. Alien Systems, the “A” in P.A.t.h.

Erik Ostermueller¹ 

(1)

Little Rock, Arkansas, USA

 

I generally start performance troubleshooting by walking through the P.A.t.h. Checklist for a single JVM. If there are no obvious issues, then I will move on to an “Alien” system—one connected to the first JVM. With a more sophisticated toolset, like an Application Performance Monitoring solution, data from multiple systems collects in a single location and application, making the process a lot easier, although licensing can get pretty expensive.

The objectives for this chapter are:

• Learn how to use a thread dump to detect slow network transmissions ...