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AWS re:invent 2018 warm up

The Cloud is now part of our job so we have to get a deeper look on the available services to understand and take best advantage of them. The annual AWS conference re:invent has started tonight in The Venetian at Las(…)

Technical and non-technical sessions at the DOAG 2018

The amazing DOAG 2018 conference is over now. As every year we saw great technical as well as great non-technical sessions. What impressed me was the non-technical presentation “Zurück an die Arbeit – Wie aus Business-Theatern wieder echte Unternehmen werden”(…)

ODA and CIS / GDPR features

We all know that security becomes...sorry, is one of the hottest topic when setting up IT environment. One basis for that is to be compliant with regulations or standards such as GDPR or CIS. What is not so well known,(…)

Power BI Report Server Kerberos Setup

In the case you have the following configuration and requirements Your Power BI, paginated mobile KPI reports are published on your on premise Power BI Report Server (Named i.e. SRV-PBIRS), their data sources is an Analysis Services located on another(…)

Is there too much memory for my SQL Server instance?

Is there too much memory for my SQL Server instance? This is definitely an uncommon question I had to deal with of my customers a couple of weeks ago. Usually DBAs complain when they don’t have enough memory for environments they have(…)

Patching a virtualized ODA to patch 12.2.1.4.0

This article describes patching a virtualized Oracle Database Appliance (ODA) containing only an ODA_BASE virtual machine. Do this patching first on test machines because it can not be guaranteed that all causes of failures of single VM ODAs are(…)

DC/OS: Install Marathon-LB with keepalived

After the minimal setup of the DC/OS in my further articles, I wanted to extend my DC/OS and add a loadbalancer. There are two options for loadbalancing in DC/OS 1. Marathon-LB (a layer 7 load balancer, used for external requests,(…)

EDB BART 2.2, parallel full backups without using pg_basebackup

Some days ago EnterpriseDB released the latest version of its backup and recovery tool for PostgreSQL and EDB Postgres Advanced Server, release notes here. The main new features, at least for me, are backups using multiple(…)

Recovering from failed patch on virtualized ODA

When a patch fails on a virtualized Oracle Database Appliance (ODA), this ODA is often unusuable because Linux and OAKD are patched to new release but Grid Infrastructure is still on old version. OAKD cannot be restarted in default mode(…)

An index only scan in PostgreSQL is not always index only

PostgreSQL supports index only scans since version 9.2 which was released in September 2013. The purpose of an index only scan is to fetch all the required values entirely from the index without visiting the table(…)