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Deploying a Kubernetes cluster on EC2 with Rancher
Once Rancher is up and running, it makes the deployment and management of Kubernetes clusters quite easy. In this post we’ll deploy a brand new cluster on top of EC2. If you want to have a simple and...
View ArticleODA: Move a DB to ASM after migrating from 11g to 19c
Introduction Modern Oracle Database Appliances still support 11gR2, but there are several drawbacks using this old version: if you want/need support for your databases, you should pay for Market Driven...
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Getting started with the Zalando Operator for PostgreSQL
In the previous posts (Rancher, up and running, on EC2 – 1 – One node, Rancher, up and running, on EC2 – 2 – Three nodes, Rancher, up and running, on EC2 – 3 – Rancher setup, Rancher on SLES 15 as a...
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Linux perf-top basics: understand the %
By Franck Pachot . Linux kernel has a powerful instrumentation that can be accessed easily. When you want to drill down into your program functions to understand their CPU usage, “perf” is the easiest....
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How to migrate Oracle Reports to Oracle BI Publisher ?
According to the Oracle Lifetime Support Policy , Oracle is not planning any functional enhancements for Oracle Reports in its terminal release, or any subsequent releases. Oracle Fusion Middleware...
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A VPC is a private cloud in a public cloud
By Franck Pachot . If you are surprised that the first thing you do in a Public Cloud is creating a Virtual Private Cloud, this post is for you. This is a beginner level post. And if you are at that...
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SQL Server – PolyBase Services when listening on all IP is disabled
Introduction You will find a lot of blogs explaining how to install the PolyBase feature with a SQL Server database instance. You will also learn how to configure it and how to use it in these blogs....
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Oracle – testing resource manager plans?
By Franck Pachot . I never remember that in order to use instance caging you need to set a Resource Manager Plan but don’t need to set CPU_COUNT explicitly (was it the case in previous versions?). Here...
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Foreign Keys in MySQL, SQL, NoSQL, NewSQL
By Franck Pachot . In the NoSQL times, it was common to hear thinks like “SQL is bad”, “joins are bad”, “foreign keys are bad”. Just because people didn’t know how to use them, or they were running on...
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Copy or Migrate a SSISDB environment 2.0
Based on the blog “Copy or Migrate a SSISDB environment” of my colleague Christophe, I create a new one named 2.0. In the precedent script, you need to give the folder name and environment name and he...
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Swiss Cyber Security Days (SCSD)
The Swiss Cyber Security Days (SCSD) took place on March 10 and 11, 2021 The largest event in Switzerland entirely dedicated to cyber security took place on March 10 and 11, in a 100% digital form....
View ArticlePostgreSQL 14: LZ4 compression for TOAST
In PostgreSQL a row or tuple can not span multiple pages (a page is typically 8kB), but of course you can store larger rows and PostgreSQL brakes and compresses these rows into smaller chunks by using...
View ArticleAdding nmon to Oracle OSWatcher
nmon (nmon is short for Nigel’s performance Monitor for Linux on POWER, x86, x86_64, Mainframe & now ARM (Raspberry Pi)) is a nice tool to monitor a Linux system. Originally it came from the...
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ORA-32635: not a single cell reference predicate
By Franck Pachot . I spent 30 minutes to try to understand this error with a query that I’ve run in many environments for years. So if you google it you may arrive here and the solution may be checking...
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Oracle Data Integrator Cloud
Data and applications integration is always a technical challenge for most of the companies. All data integration tool ensures that information is timely, accurate, and consistent across complex...
View ArticleShould CPU-intensive logic be done in the DB or in application server?
By Franck Pachot . Should CPU-intensive logic be done in the DB or in application server? Here was a answer found in Reddit: Comment from discussion xpiv’s comment from discussion "Should CPU-intensive...
View ArticleWorking with multipass, a VM manager
Introduction What if you need quickly to launch virtual machine instances running Ubuntu for development and testing purposes. Multipass from Canonical can be the right tool for this. You can even...
View ArticleOracle JVM included in Oracle Database license ?
Introduction A customer of mine asked me a licensing question regarding the usage or Oracle JVM in an Oracle database. Basically this customer have an Oracle Database Standard Edition License and...
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SQL Server: Create a Shared Storage for your Failover Cluster LAB
I’m currently working on the migration of a Failover Clustered SSAS instance from Windows Server 2012 to Windows Server 2019. The context is quite complex and in order to choose the right migration...
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Automating Linux patching with Ansible
Since the beginning of the year, several vulnerabilities have been discovered in the Linux Kernel as well as in others important and widely-used packages. Among them, there was the famous CVE-2021-3156...
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