Julien Delattre, member of the Oracle Team Zurich, has more than five years of experience specializing in Oracle databases, plus expertise in MariaDB and MongoDB. Prior to dbi services, he was a Database Administrator at Atos in Angers, France, and a Data Scientist at Air France in Paris and Apurata in Lima. Julien holds a Master's degree in Computer Science, Data Science, and Statistics from Centrale Paris / Université Paris-Saclay.
When doing complex operations with GoldenGate, checking for long running transactions is mandatory if you don’t want to miss transactions. Let’s look at two ways of retrieving such information, first with the adminclient, and then with the REST API. When and why should I worry about long running transactions ? In a standard extract life-cycle, you should not be worrying…
While upgrading GoldenGate to 26ai for a DB2 z/OS source, I had to update the IBM Data Server Driver for ODBC and CLI (CLI Driver, in short) alongside it. Since I realized that DB2 driver know-how was rare in companies, I figured it would be worth writing a blog about the topic. In this GoldenGate upgrade, the previous driver was…
While working on a client’s GoldenGate 26ai environment, I ran into a NFS-related replication issue that could have been serious, had it happened in production. Here is what happened and how the issue was fixed. The client’s GoldenGate extract was running on a dedicated server, capturing changes from an Oracle 19c source database. Trail files were written on an NFS.…
Since version 7.0.11, MongoDB natively supports OpenID Connect (OIDC) authentication. This move was part of MongoDB’s cloud strategy, since cloud environments use OIDC a lot for authentication and authorization. In version 8.0, MongoDB deprecated LDAP authentication and authorization, making it clear that OIDC is the future for MongoDB authentication. In this blog, I will present how to set up OIDC…
The 23.26.3.0.0 release update of GoldenGate 26ai (July 2026) ships a small but welcome usability change, listed in the New Enhancements section of the release notes: Bug 39415027: Generic – Simplified Distribution and Receiver Service Path Configuration Enhanced the Create Distribution and Receiver Service Paths experience by introducing Simple and Advanced configuration modes. The simplified view displays only the required settings by default, while…
In this blog, I will present the new features introduced with the latest release (2.5.0) of the MongoDB DMK. The DMK is a set of standardized tools that aims at easing the work of DBAs by having dbi’s best practices embedded in common scripts across all the database servers of an organization. dbi services provides the DMK (Database Management Kit) to its…
Since the beginning of the year, I had the opportunity to upgrade many GoldenGate setups to 26ai. On two of them, I was facing an issue regarding purge tasks that I could not solve. Since it took quite some time to finally find a solution, I figured it was worth documenting. The client had two GoldenGate 26ai installations running on…
Every time I work on database migrations with GoldenGate, I have the same talks with application teams about missing primary keys. Especially when it comes to LOB replication with GoldenGate. In a previous blog, I wrote about how to interpret the DBA_GOLDENGATE_NOT_UNIQUE view, which lists tables with no primary key or non-null unique indexes. There are two main groups of…
GoldenGate is a powerful replication tool, but it is so versatile that you should always check whether what you intend to do is supported or not. Oracle provides a few interesting scripts and views to check your environments before attempting a replication with GoldenGate, and I wanted to write about the DBA_GOLDENGATE_NOT_UNIQUE view. Before explaining what this view contains and…
I recently wrote about NGINX reverse proxy reconfiguration after creating or deleting a deployment in GoldenGate. It reminded me that there is an overlooked aspect of the reverse proxy configuration, which is important when trying to automate GoldenGate management with the REST API. In fact, when using a reverse proxy with a single deployment, some endpoints are different from a…
For some customers, the end of support for GoldenGate 19c in May this year and the migration to Microservices Architecture mean that they have to adapt their patching procedures (if they had any !). Let’s see how to patch a GoldenGate Microservices Architecture out of place efficiently. This guide is designed for GoldenGate 26ai because this version introduces some small…
Configuring an NGINX reverse proxy for GoldenGate is well documented by Oracle, but what is not is the implication of adding or removing deployments. In fact, when modifying your GoldenGate deployments, you will have to reconfigure the NGINX reverse proxy. If you don’t, part of your installation will not be working anymore. This is what will happen in the web…
