CentOS yum(8) Error « No module named cElementTree » Fixed

I've been having problems with yum(8) on one of the CentOS 6 x86_64 machines. After looking at many different forums and bug reports, I now found the solution.

Oracle Data Pump

Today I'm going to show how I use Oracle Data Pump utilities. Starting with Oracle 10gR1, Oracle replaced both the export and import utilities by their new Data Pump counterpart : expdp and impdp respectively. The official documentation on these utilities is found in the Oracle Database Utilities10g Release 2 (10.2)

The steps outlined in this blog post are part of a database consolidation effort in which several databases from two different machines will be merged into a new Linux x86_64 server running RedHat Enterprise Linux 5.9 and Oracle RDBMS 10gR2.

Oracle Database 11.2.0.3 Install and Setup on RedHat Linux 6 x86_64

In this post we will install a new server with the latest Oracle Database 11gR2 software (as of this writing, it is version 11.2.0.3). In this example, the new machine is called opus.company.com and the new database instance is called meta.

What to look out for when changing old servers.

Last week I replied to a post from Marko Sutic on the oracle-l mailing list (Here's the thread on the mailing list archives). Apperently it was worth it as he wrote back saying « I'm astonished with the quality of your reply! » (thanks Marco, it's a good ego booster! :)

He suggested that this post should be shared because it can be useful to many people. And not just as an Oracle specific issue. He also asked if he could post it on his blog. Not a bad idea, I thought. So here it is. But first, let's see Marco's original question: