Category: Wildfly

Messages are NOT processed even if workers are available

We’ve application which synchronizes customers data at certain time intervals. For that we’re using JMS (HornetQ) with Java EE MDB’s (workers) as these synchronizations are asynchronous and running in the background. One JMS message contains one customer ID. When JMS message is picked up by MDB instance (worker) from queue then it starts syncing data […]

How-to: Obtain Thread Dump and Heap Dump on JBoss/WildFly

Sometimes you need to analyze unexpected behavior on application server. Out of memory, EJB pool exhaustion or deadlock are one of many problems with which you can often met. And not always the server log will help you. When log is empty, but application shows signs of errors (is slow or maybe even stuck) you […]