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Franck Pachot

Spectre/Meltdown on Oracle Public Cloud UEK – PIO

By | Oracle | 2 Comments

The Spectre and Meltdown is now in the latest Oracle UEK kernel, after updating it with ‘yum update': [opc@PTI ~]$ rpm -q –changelog kernel-uek | awk ‘/CVE-2017-5715|CVE-2017-5753|CVE-2017-5754/{print $NF}’ | sort | uniq -c 43 {CVE-2017-5715} 16 {CVE-2017-5753} 71 {CVE-2017-5754} As I did on the previous post on AWS, I’ve run quick tests on the Oracle Public Cloud.  

 
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Marc Wagner

RMAN debugging during catalog import

By | Database management, Oracle | No Comments

In this post I would like to share how I have been able to troubleshoot and solve a catalog import issue using RMAN debug function. As we can see, the error message provided by RMAN is not very helpful. oracle@vmtestoradg1:/home/oracle/ [RCAT12C] rman catalog rcat/manager Recovery Manager: Release 12.2.0.1.0 connected to recovery catalog database RMAN> import catalog rcat/manager@RCAT11G; Starting import catalog at 05-JAN-2018 14:11:45 connected to source recovery catalog database RMAN-00571: =========================================================== RMAN-00569: =============== ERROR MESSAGE…

 
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Marc Wagner

ORACLE 11g to 12c RMAN catalog migration

By | Database management, Oracle | One Comment

This is a small migration demo of a 11g catalog (RCAT11G) to a new 12c catalog (RCAT12c). Demo databases environments have been easily managed thanks to DBI DMK tool. oracle@vmreforadg01:/home/oracle/ [RCAT11G] sqh SQL*Plus: Release 11.2.0.4.0 oracle@vmtestoradg1:/home/oracle/ [RCAT12C] sqh SQL*Plus: Release 12.2.0.1.0   Current configuration Displaying the list of databases registered in the RCAT11g catalog. SQL> select instance_name from v$instance; INSTANCE_NAME —————- RCAT11G SQL> select * from rcat.rc_database;     DB_KEY  DBINC_KEY       DBID NAME     RESETLOGS_CHANGE# RESETLOGS ———-…

 
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Mouhamadou Diaw

Automatic Data Optimization Part II : StorageTiering

By | Database Administration & Monitoring | No Comments

In first a previous blog, we saw how Automatic Data Optimization can be used to compress data under predefined conditions. In this blog we will see that another possible action with ADO is to move data to another storage. Indeed we will demonstrate how it is possible to move a table to another tablespace based on predefined conditions. We are using oracle a 12.1.0.2 non-CDB database. Let’s considerer following table ARTICLE in the tablespace USERS…

 
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Clemens Bleile

Running the Oracle Client on a Raspberry Pi

By | Database Administration & Monitoring, Database management, Development & Performance, Oracle | No Comments

What are the possibilities to use a Raspberry Pi computer as an Oracle client? Besides other things I’ll show a possibility in this Blog to run the fat/thick Oracle Client on a Raspberry Pi! REMARK: All examples below were made with an Rasperry Pi 3 and the OS Raspbian, which can be downloaded from https://www.raspberrypi.org/downloads First of all what’s possible with Java and Thin Clients? Running the Java-Programs sqldeveloper or its counterpart in command line…

 
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Franck Pachot

Oracle docker image from docker store

By | Oracle | No Comments

Did you notice that each time you want to download the Oracle binaries from the OTN website (for non-production usage) you have to click on the “Accept License Agreement”? This is because you have to agree with the OTN license agreement, and that makes it not easy to distribute an automated way to build an environment. The only exception I have seen was the sealed envelopes provided for the RACattack:  

 
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Nicolas Jardot

DOAG 2017: Automation in progress

By | Database Administration & Monitoring, Oracle | 5 Comments

A week ago, I had the chance to be speaker at the DOAG Konferenz 2017 in Nürnberg. It’s sometimes hard to find time to be at the conferences because the end of year is quite busy at customers. But it’s also important because it’s time for sharing. I can share what I’m working on about automation and patching and I can also see how other people are doing. And it was great for me this…

 
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Pierre Sicot

DBVISIT from Oracle to Postgres

By | Database Administration & Monitoring | No Comments

As I regularly work on Oracle and PostgreSQL, I decided to test the replication from Oracle to PostgreSQL using the Dbvisit Replicate tool. Dbivisit Replicate does not use Oracle logminer ot triggers but its own mining processes to get the changes when they are written to the redo logs. When a change appears in the redo log, an external file called PLOG is generated and transferred to the target. The architecture is quite easy to…

 
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