Oracle

Kernel panic – not syncing: Out of memory and no killable processes

By Franck Pachot . This is a quick post to give a solution (maybe not the best one as this was just quick troubleshooting) if, at boot, you see something like: Trying to allocate 1041 pages for VMLINUZ [Linux=EFI, setup=0x111f,(…)

18c: No Active Data Guard required (and detected) when only CDB$ROOT and PDB$SEED are opened in read-only

By Franck Pachot . When you clone a PDB on the primary CDB, you want that the same is automatically done on the standby ones. Unfortunately, for this operation, the CDB must be opened read-only. In 12.1 even the PDB(…)

Introduction to databases for {Power.Coders} with MySQL

By Franck Pachot . This week I took some days off to do something related to my job but a bit different. I've given a course on Databases and SQL. But not for my usual customers. And not(…)

Remote syslog from Linux and Solaris

By Franck Pachot . Auditing operations with Oracle Database is very easy. The default configuration, where SYSDBA operations go to 'audit_file_dest' (the 'adump' directory) and other operations go to the database may be sufficient to log what is done but(…)

ADWC new OCI interface

By Franck Pachot . A few things have changed about the Autonomous Data Warehouse Cloud service recently. And I've found the communication not so clear, so here is a short post about what I had to do to start the(…)

Change Data Capture from Oracle with StreamSets Data Collector

By Franck Pachot . With this trend of CQRS architectures where the transactions are streamed to a bunch of heterogenous eventually consistent polyglot-persistence microservices, logical replication and Change Data Capture becomes an important component, already at the architecture design phase.

Installing MAMP to play with PHP, MySQL and OpenFlights

By Franck Pachot . You may wonder what I'm doing with those technologies that are completely different from what I usually do. I'll detail in a future blog post but the idea is giving a short introduction to databases to(…)

SQLcl connect target depends on previous connection

By Franck Pachot . I thought it was a bug for two reasons: first, because I don't like that my connect destination depends on the context, and then because it is a different behavior than in SQL*Plus. But finally, it(…)

OpenShift on my Windows 10 laptop with MiniShift

By Franck Pachot . If you want to play with OpenShift on your laptop, you can, in a Virtual Machine. I have VirtualBox installed on my laptop. I'll install Minishift here, which will create the VM to run OpenShift with(…)

Which Bitnami service to choose in the Oracle Cloud Infrastructure?

By Franck Pachot . In the Oracle Cloud PaaS you have a marketplace where you can choose your service. Some are packaged from Bitnami and available on multiple OS. My first idea is that in PaaS you do not care(…)