All articles

Oracle OHS 14.1.2 Upgrade: Cache Broke Authentication

During a recent Oracle Fusion Middleware upgrade from 12.2.1.4 to 14.1.2, I encountered an interesting issue with Oracle HTTP Server (OHS) and WebGate. The upgraded components were running, but WebGate initialization failed and the application was(…)

Anatomy of an Enterprise Manager metric extension

Recently, I was working on deploying Metric Extensions automatically in Enterprise Manager, but the more I looked into it, the more it turned into a different question: what does a Metric Extension look like ? In a(…)

Why attend PGConf.EU? My feedback from Valencia

This week I was in Valencia for the PGConf.EU 2026, the biggest PostgreSQL conference in Europe. Something surprised me right at the start. During the welcome session on the first day, the organizers asked who was attending for(…)

Oracle Reports 14.1.2 REP-50125 – A Hidden REPORTS_JVM_OPTIONS Requirement

How bytecode analysis exposed an ORB initialization defect during an Oracle Fusion Middleware upgrade!(…)

Oracle WebLogic Configuration Wizard Freezes on Linux

During an Oracle Fusion Middleware 14.1.2 upgrade, I encountered an issue while reconfiguring an existing Oracle ADF domain. The WebLogic Configuration Wizard launched successfully through SSH X11 forwarding, but the graphical interface became unresponsive during the reconfiguration.

PGConf.EU 2026 – Day 1

Welcome to Valencia! This year, the European PostgreSQL conference, PGConf.EU, takes place at the Palacio de Congresos in Valencia, Spain. I am lucky to be able to attend it with some colleagues from dbi services. Let’s see what’s going(…)

SQL Server 2025: is optimized locking really working? Ask the Extended Events

How to check what SQL Server 2025 optimized locking really does with Extended Events: escalations, LAQ attempts and restarts.

How to detect a suspended GoldenGate extract

While testing EVENTACTIONS (SUSPEND) on an extract, I noticed that nothing in INFO tells you the process is suspended. The extract shows as RUNNING, the lag might look fine for a while, and yet it has stopped capturing. You(…)

Oracle FMW Upgrade – ADF Failed (INVALID_WLS_COMPONENT_SCHEMA_OWNER)

During the preparation of an Oracle Fusion Middleware upgrade from 12.2.1.4 to 14.1.2, the Upgrade Assistant readiness check flagged the WebLogic schema in an ADF domain. The error identified during the investigation was INVALID_WLS_COMPONENT_SCHEMA_OWNER.

OCI-managed MCP Server: Troubleshooting ORA-12170 errors with Private Endpoint connectivity

We recently worked on a customer proof of concept (PoC) involving Oracle databases hosted in Oracle Cloud Infrastructure (OCI) within private VCN subnets. The goal was to evaluate OCI-managed MCP servers and determine whether extending their available toolsets(…)