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How to upgrade Patroni

It's been a while since I wrote the blog post about PostgreSQL 13 and Patroni 2.0. On this blog I received a comment, if it's possible to explain, how to upgrade from Patroni 1.6 to 2.

How to setup a Consul Cluster on RHEL 8, Rocky Linux 8, AlmaLinux 8 part 2

Within the first part I have described the setup of Consul as replacement for ETCD. Here now the setup ob keepalived, haproxy and patroni. The needed packages I have installed within the first part, so let’s start with the(…)

Configure Data Guard between 2 DB Systems with Oracle 21c

By Mouhamadou Diaw In this previous blog, I have configured 2 DB systems with Oracle 21c in an ODA 19.14. Now let’s continue and show how we can configure a Data Guard between these 2 servers.

Configure DB System Oracle 21c in a ODA 19.14

By Mouhamadou Diaw One question we may ask is that if it is possible to deploy an Oracle 21c database in an ODA as the latest version for ODA is actually 19.x The answer is Yes. Since ODA release(…)

How to allow users having monitoring role to view and manage messages in WebLogic JMS queues.

Recently I got the request to provide JMS Queues monitoring access to a group of users with the privileges to view and manage de messages in the queues. This can be done through the WebLogic console but for this customer,(…)

How to create an Oracle GoldenGate EXTRACT in Multitenant

Create an EXTRACT process into container database has some specificity : From the CDB$ROOT, create a common user and configure the database to be ready to extract data via GoldenGate: SQL> create user c##gg_admin identified by "*****" default tablespace goldengate(…)

Near Zero Downtime Migration and failback with GoldenGate

Oracle GoldenGate allows to migrate Oracle database with Near Zero Downtime and with failback capability. Near Zero Downtime migration means very minimal application switchover downtime. The failback consists to rollback the migration from 19c to 12c. The goal of this(…)

SQL Server: Find who forced a plan in Query Store with this new XEvent

The latest Cumulative Update for SQL Server 2019 has been released this week on Monday. It brings many bug fixes and some small improvements. One of these improvements is the addition of an extended event to identify the(…)

SQL Server: Automatic Soft-NUMA and uneven CPU load

SQL Server has CPU limitations depending on the Edition. If your VM is not configured properly you can reach these limits very easily. In a previous post, I described the effect VM misconfigurations can have on performance because not(…)

Oracle Data Guard : Where to Host The Master Observer

By Mouhamadou Diaw An observer is an OCI client that connects to the primary and target standby databases using the same SYS credentials you used when you connected to the Oracle Data Guard configuration with DGMGRL. The observer is(…)