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Bringing up an OpenShift playground in AWS

Before we begin: This is in no way production ready, as the title states. In a production setup you would put the internal registry on a persistent storage, you would probably have more than one master node and you would(…)

WebLogic – Update on the WLST monitoring

A few years ago, I wrote this blog about a WLST script to monitor a WebLogic Server. At that time, we were managing a Documentum Platform with 115 servers and now, it’s more than 700 servers(…)

Documentum – RCS/CFS installation failure

A few weeks ago, I had a task to add a new CS into already HA environments (DEV/TEST/PROD) to better support the load on these environments as well as adding a new repository on all Content Servers. These environments were(…)

How to stop Documentum processes in a docker container, and more (part I)

Ideally, but not mandatorily, the management of Documentum processes is performed at the service level, e.g. by systemd. In my blog here, I showed how to configure init files for Documentum under(…)

How to stop Documentum processes in a docker container, and more (part II)

ok, Ok, OK, and the docker part ? In a minute. In part I of this 2-part article, we showed how traps(…)

Documentum – MigrationUtil – 4 – Change Host Name

In this blog I will change the Host Name, it comes after three blogs to change the Docbase ID, Docbase Name, and Server Config Name, hope that you(…)

PostgreSQL 12: Explain will display custom settings, if instructed

How many times did you try to solve a performance issue but have not been able to reproduce the explain plan? Whatever you tried you always got a different result. Lets say you managed to get a dump of the(…)

PostgreSQL 12: Copying replication slots

The concept of replication slots was introduced in PostgreSQL 9.4 and was created to prevent a primary instance to delete WAL that a replica still needs to apply. That could happen when you have a network interruption or the replica(…)

PostgreSQL 12: generated columns

PostgreSQL 12 will finally bring a feature other database systems already have for quite some time: Generated columns. What exactly is that and how does is look like in PostgreSQL? As usual, lets start with a simple test setup.

RCSI with foreign keys, NULL values and paramater sniffing behavior

In this blog post let’s go back to the roots (DBA concern) with a discussion with one of my friends about a weird transaction locking issue. In fact, this discussion was specifically around two questions. The(…)