Category Archives: Application Servers

Activate #infinispan second level cache with #jboss and #hibernate

By | November 23, 2022

Second level cache is an extremely powerful way to improve performance of an enterprise application if done right. In the following I will explain how to activate and configure second level cache when using Hibernate and Jboss 7.4+ application server. Jboss 7.4 comes with Infinispan as the build in second level cache solution. This makes… Read More »

#Optimize #Jboss EAP 7.x embedded #Artemis messaging server for high volumes

By | February 23, 2022

There are several configurations that will prepare the embedded Jboss EAP 7.x Artemis messaging server for a production environment with high volumes. The following is a non exhaustive list of optimizations I discovered during several performance tests. Most of the settings is assumed that are done from jboss-cli. Disable client pre-fetch of messages: This will… Read More »

How to run with multiple PHP versions on Fedora 35 using Apache and PHP-FPM

By | January 15, 2022

I am self hosting my own services on my home server and sometimes issues occur due to incompatible prerequisites and because I try to always use the latest version of everything. After updating from Fedora 34 to Fedora 35 again I hit one issue I already had: PHP prerequisites. The issue after update was caused… Read More »

Recover a legacy #Glashfish Application Server from a disk full situation #Java LOG003: Read failure. Log exception at point 14.

By | July 14, 2021

There is this case when disk is full on a server instance running Glashfish Application Server. This sadly has an adverse effect due to some Glashfish bugs that were never fixed. When disk is full several things get corrupted because Glashfish by default uses the disk to store some cached information. First sign you have… Read More »

#Jboss #Artemis AMQ153005: Unable to retrieve ${0} from JNDI. Creating a new ${1} named ${2} to be used by the MDB

By | December 17, 2019

This is a strange annoying warning that suddenly appeared after I upgraded to JBoss 7.4.2 and was completly flooding my output log. It looks like an warning due to a bad configuration that until version 7.4.2 was ignored. My log looked something like this: Of course the fact that somehow the warning message seems to… Read More »

#RedHat #JBoss and #Artemis dead-letter queue issue

By | July 14, 2019

After migrating from ActiveMq to the embeded JBoss EAP Artemis messaging server ( see link ) I was getting the following error related to the dead message queue (the default queue where messages that failed to be processed end up). 10:21:04,620 WARN [org.wildfly.iiop.openjdk] (ServerService Thread Pool — 7) WFLYIIOP0111: SSL has not been configured but… Read More »