Database Administration & Monitoring

Having multiple standby databases and cascading with dbvisit

Dbvisit standy is a disaster recovery solution that you will be able to use with Oracle standard edition. I have been working on a customer project where I had to setup a system having one primary and two standby databases.

Connecting to ODA derby database

ODA light (ODA X7-2S, X7-2M, X8-2S, X8-2M) come with an internal derby database to manage ODA metadata. From time to time, there is a need to check or update some information within it, as for example when facing database deletion(…)

Why you really should use peer authentication in PostgreSQL

It is always a bit of a surprise that many people do not know peer authentication in PostgreSQL. You might ask why that is important as initdb creates a default pg_hba.conf which(…)

Where can you find core developers asking people what is missing in PostgreSQL? pgconf.eu.2019

One of the major advantages of PostgreSQL conferences when you compare it to other conferences is, that you can listen to talks where the actual developers are presenting their work. You have questions about a feature, you want to know(…)

Creating a customized PostgreSQL container using buildah

Quite some time ago I blogged about how you could build your customzized PostgreSQL container by using a Dockerfile and Docker build. In the meantime Red Hat replaced Docker in(…)

Patroni Operations – switchover and failover

In this post we will have a look at switchover and failover of a Patroni cluster. As well as a look at the maintenance mode Patroni offers, which gives the opportunity to prevent from an automatic failover.

Oracle 19c

Oracle 19c has been released quite a while ago already and some customers already run it in Production. However, as it is the long term supported release, I thought I blog about some interesting information and features around 19c to(…)

SQL Server 2019 Accelerated Database Recovery – Instantaneous rollback and aggressive log truncation

In my previous article about Accelerated Database Recovery (ADR), I wrote mostly about the new Persistent Volume Store (PVS), how important it was important in the new(…)

Documentum Administrator in a Container

In article A Small Footprint Docker Container with Documentum command-line Tools, we presented a possible way to containerize the usual Documentum clients idql, iapi, dmawk and dmdocbroker.

A Small Footprint Docker Container with Documentum command-line Tools

The aim here is to have a minimalist container with the usual Documentum clients idql, iapi, dmawk and dmqdocbroker. Documentum Administrator (DA) could also be a useful addition to our toolbox. We will show how to containerize it in(…)