Middleware is where applications meet infrastructure. Here our consultants write about WebLogic, JBoss EAP, WildFly and Tomcat in real production environments: installing and clustering them, patching, deploying applications and finding out why something stopped working.
I have been requested to migrate the Fusion Middleware repository database from one Linux server to a new one. Here are the steps followed to successfully do this. In the following of this document, the Fusion Middleware repository created using the repository creation utility (RCU) has the following prefix: VM12FR. Note that the new repository database was already configured as…
Recently, at a customer site, I faced an issue of WebLogic Admin server which crashes because it reached Java Virtual Machine (JVM) limit. Xms and Xmx were set to 1Gb. Expected behavior is that Node Manager detects it and restart Admin server automatically as you can see in log: Basic License In the meantime, Pascal Brand ran the script provided…
Recently I got the request to provide JMS Queues monitoring access to a group of users with the privileges to view and manage de messages in the queues. This can be done through the WebLogic console but for this customer, all is done via ansible scripts. Thus I had to find a scripting solution. I followed the Oracle documentation to…
A few weeks ago, an issue was identified at a customer which would cause the value of “dm_server_config.r_server_version” to be reset to the GA version number (16.4 P00) instead of the currently deployed patch (which is 16.4 P26) and that would happen randomly on some of the Content Servers but not all. The different Content Servers are all deployed on…
At a customer, I recently faced a problem with the JMX settings that couldn’t be reverted. If you already worked with Alfresco, you know that it’s possible to save configurations through the Alfresco Administration Console and that doing so will store these settings into the Database. This has several drawbacks like the fact that it’s then impossible to manage your…
I had an interesting case at a customer where the Single Sign On (using SAML2) on a WebLogic Server stopped working after the renewal of the WebLogic SSL Certificate. The WebLogic Server itself and its applications were still accessible (by bypassing the SSO) and working fine but not the SSO itself. That’s definitively a strange behavior and not something I…
The aim of that blog is to look into Oracle REST Data Services (ORDS) DB connection with TNS. This is following some experience at a customer who wanted to move to latest version of ORDS with APEX 21.2, in late 2021, and run into an issue. For general presentation about ORDS installation please see the blog of my colleague Lazhar…
This article is part of a series that includes SQLite, Postgresql, Firebird, MongoDB, Microsoft SQL Server, HSQLDB, Excel, and MariaDB. The goal is to set up a self-standing environment for testing an ODBC extension for gawk presented here to be completed. Refer to SQLite for installing the required ODBC Driver Manager. The test system is a debian v11 (bullseye). As…
If you have ever been working on a sensitive Documentum environment (they are all sensitive, are they not?!), you might already have worked on hardening your Web Servers. One of these aspects is to have a specific set of HTTP Security Headers. In this blog, I will talk about one in particular, which is the Content-Security-Policy (CSP). The recommendations…
I had a case at a customer recently where newly uploaded documents into Alfresco would always be searchable but only after 2min45s to 3min. The environment in question is an Alfresco Content Services 7.1 with High Availability (Repository and Share Clustering, Solr Sharding on multi-nodes, …) used for QA/TEST. It’s an ongoing project to upgrade an Alfresco 6.1 to 7.1…
It is time to show you how to build a cluster with Domain mode within JBoss EAP 7. Before you read this blog I suggest you to review the following blogs: JBoss terminologies, the Domain architecture understanding, and how to create a Domain. All these bogs will help you to better understand what we will do today 😉 Environment Preparation…
After we made a global overview on Elastic Stack and we went more in deep in Elasticsearch terminologies. This third blog in the Elastic Stack series will allow you to know how to set up Elasticsearch, from Downloading, Installing, Configuring, and Starting. Supported platforms At the beginning of any installation you have to check the compatibility matrix from operating systems…
