A Liberty server dump provides a comprehensive set of information about the state of a Liberty server. It's one of the most useful tools for IBM service to investigate problems in a Liberty server, but can also provide some interesting daignostics to end users. Obtaining a server dump ...
The June release of IBM ® Mono2Micro ™ introduces a brand new command line interface (CLI) tool that lets you easily control all the components of Mono2Micro as you work through the process of refactoring monolithic Java applications to microservices on WebSphere Liberty. In addition to...
In a previous post , we discussed how to perform live container debugging on OpenShift using worker node debug pods. This helps with the case when you want to gather diagnostics from a container without restarting it, but that container doesn’t have sufficient diagnostic tools built-in. In this...
Last week, I presented an IBM Expert TV session about securing cloud native applications in WebSphere Liberty. Although "cloud native" implies a lot of things (e.g. dev ops, containers, etc...), for the purposes of securing your application I focused on the Micro Services pattern that is common...
In a previous post on Java Performance Tools: Sampling Profiler , we covered how to use the Health Center sampling profiler available in IBM Java to investigate Java CPU usage in a low overhead way. One additional question people often have is how to figure out what's driving Java memory...
Caching is the process of saving the result of a calculation and potentially re-using it in the future to reduce response times, increase throughput, and reduce load on servers. Caching is a critical and often under-tuned aspect of performance. In this article, we'll cover how to understand Java...
On Wednesday, April 13th, 2022 at 11:00 AM ET, we presented "Tune Java Garbage Collection to improve performance" on IBM Expert TV. Replay: https://ibm.biz/BdPBhT Presentation: https://ibm.biz/BdPdEJ Speakers: Kevin Grigorenko, Gary DeVal In the presentation, we discussed key...
Over the years, we have heard from users of the WebSphere Application Migration Toolkit for Application Binaries (aka binary scanner) that they have added the binary scanner to their build pipeline. This allows their application to be evaluated using the binary scanner with each build of the...
Problem What information, logs, and traces, should I gather to troubleshoot a problem with the Auto Scaling feature for Liberty Profile ND? Cause Liberty Profile ND has a feature called Auto Scaling. If configured, this features provides an autonomic scaling capability for Liberty...
Problem What information, logs, and traces, should I gather to effectively troubleshoot a problem with the Dynamic Routing feature in the web server Plug-in for WebSphere Liberty Profile ND? Cause Liberty Profile ND has a feature called Dynamic Routing . If enabled, this features...