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JBoss EAP 7 – Cluster in Domain mode

It is time to show you how to build a cluster with Domain mode within JBoss EAP 7. Before you read this blog I suggest you to review the following blogs: JBoss terminologies, the(…)

opatch hangs while patching OEM 13.4. concerning the log4j-vulnerability

By Clemens Bleile To address the log4j-vulnerability I recently had to fix the Oracle Enterprise Manager 13.4.-installation for a customer. REMARK: Please check the following link for details concerning the log4j-vulnerability and how Oracle is affected: alert-cve-2021-44228 and(…)

Script to calculate the network latency between the application and the Oracle DB-server

By Clemens Bleile Network latency is crucial for applications, especially if lots of “row by row”-processing (some call it “slow by slow”-processing) is used by the application or if lots of data is transported between the database and the application.

Parallelize your Oracle INSERT with DBMS_PARALLEL_EXECUTE

One of the challenge of all PL/SQL developers is to simulate the Production activity in a Non Prod. environment like for example different Insert executed by several sessions. Different tools exist like Oracle RAT (Real Application Testing) but under license(…)

Elastic (ELK) Stack – Set up Elasticsearch

After we made a global overview on Elastic Stack and we went more in deep in Elasticsearch terminologies. This third blog in the Elastic Stack series will allow you to know how to set(…)

MacOS: Reduce fan noise when using Microsoft Teams

The Laptop I’m using for the business is a MacBook Pro, model 2019 (2.6 GHz 6-Core Intel Core i7). I’m thankful to be able to choose the Hardware and OS of my business laptop at dbi services. We have collegues(…)

Exadata Cloud at Customer: Considerations for Backup & Recovery

Working in a project where the customer migrates from an on-premises environment to Exadata Cloud at Customer provides insights about the decisions to take and what to consider when using the Exadata Cloud at Customer environment. In a series of(…)

SQL Server: msdb too big with the table dbo.sysmaintplan_logdetail

Today, I was by a new customer and the I see that the msdb data file was over 4GB. A little too big… To see which table are so big, in SSMS, I select the msdb database, right-click, go in(…)

SQL Server: Cannot execute as the database principal “dbo” does not exist

By a customer this month, I see a very big big ErrorLog file (more than 1,5GB). When I open the file, every 5 seconds, the following message is added: The activated proc ‘[dbo].[IdentityServerNotificationCleanup]’ running on queue ‘<database>.dbo.IdentityServerNotificationsQueue’(…)

Elastic (ELK) Stack – Elasticsearch Terminologies

In a previous blog, we got an overview on Elastic Stack (Elasticsearch, Logstash, Kibana, and Beets), in next blogs I will go through all these components to understand them, today we will go more in deep in(…)