Some tips when debugging WLS cluster stability

In one environment we had problems with cluster stability - and there were unnecessary migrations of JMS Servers.

Purging the product database is one of the most critical tasks for ensuring the stability and performance of SOA/BPM Suite production environments. However, as important as this may be, it ends up usually being neglected or even completely overlooked, that is, until the shit literally hits the fan and then we’re just scrambling to save the operation and control the damage.

Wrong patch uploaded

Did you have problems with the latest SOA 12.1.3 Bundle Patch 22970958 ( We also. When you download the patch - look at inventory.xml and see that it contains the following information:


When configuring server startup parameters a lot of thing have to be taken in consideration: memory and processor availability within physical or virtual machine, perceived need for resources by software running on application server, type of software running, level of network usage, etc. In that context we will examine some common configuration problems and how to address them like: choosing proper garbage collector and PermGen Java bucket misconfiguration for Java versions prior Java 8 [1].


To many old fashion JDeveloper developers using Maven is a new and obscure thing as JDeveloper has his own build system and does not require ANT or Maven as a build or deployment tool. However if it goes to continuous integration with many small integration automatic builds done daily than using ANT or Maven is inevitable, of which Maven is newer and more popular. Unfortunately for SOA/OSB 12c developers, other popular IDEs, like NetBeans, Eclipse or IntelliJ have much better Maven support than JDeveloper. Still relaying on his old build and deploy system, and using somewhat hybrid approach on integrating Maven, JDeveloper has a lot of issues when it comes to creating new Maven based projects and build them. Moreover Maven problem does not ends with JDeveloper when it comes to proper working of Maven with OSB architecture but it spans whole Middleware architecture.