Oracle

oraclebase's picture

To PDB or not to PDB

I’m about to start a Proof of Concept (POC) for a 12c upgrade of one of our databases. The production database in question is running on Oracle Linux inside a VMware virtual machine, so the starting point I’ve been given for the POC is a clone of the whole VM…

Probably the biggest decision I’ve got to make is “to PDB or not to PDB” *. I mentioned it on Twitter earlier and got some conflicting opinions. I guess the pros and cons of the PDB approach go something like this in my head.

Pros:

jeremy.schneider's picture

Grid/CRS AddNode or runInstaller fails with NullPointerException

Posting this here mostly to archive it, so I can find it later if I ever see this problem again.

Today I was repeatedly getting this error while trying to add a node to a cluster:

jeremy.schneider's picture

Grid/CRS AddNode or runInstaller fails with NullPointerException

Posting this here mostly to archive it, so I can find it later if I ever see this problem again.

Today I was repeatedly getting this error while trying to add a node to a cluster:

kevinclosson's picture

SLOB Data Loading Case Studies – Part I. A Simple Concurrent + Parallel Example.

Introduction

This is Part I in a short series of posts dedicated to loading SLOB data.  The SLOB loader is called setup.sh and it is, by default a concurrent, data loader. The SLOB configuration file parameter controlling the number of concurrent data loading threads is called LOAD_PARALLEL_DEGREE. In retrospect I should have named the parameter LOAD_CONCURRENT_DEGREE because unless Oracle Parallel Query is enabled there is no parallelism in the data loading procedure. But if LOAD_PARALLEL_DEGREE is assigned a value greater than 1 there is concurrent data loading.

kevinclosson's picture

SLOB Deployment – A Picture Tutorial.

SLOB can be obtained at this link: Click here.

This post is just a simple set of screenshots I recently took during a fresh SLOB deployment. There have been a tremendous number of SLOB downloads lately so I thought this might be a helpful addition to go along with the documentation. The examples I show herein are based on a 12.1.0.2 Oracle Database but these principles apply equally to 12.1.0.1 and all Oracle Database 11g releases as well.

pete.sharman's picture

Metering and Chargeback

In the past few posts, I’ve covered setting up PDBaaS, using the Self Service portal with PDBaaS, setting up Schema as a Service, and using the Self Service Portal with Schema as a Service, all of these using Enterprise Manager Cloud Control 12c release 12.1.0.4.

oraclebase's picture

More Oracle Multitenant Changes (12.1.0.2)

When I wrote about the remote cloning of PDBs, I said I would probably be changing some existing articles. Here’s a change I’ve done already.

There are also new articles.

I’m sure there will be some more little pieces coming out in the next few days…

Jonathan Lewis's picture

Analogy – 2

I suggested a little while ago that thinking about the new in-memory columnar store as a variation on the principle of bitmap indexes was quite a good idea. I’ve had a couple of emails since then asking me to expand on the idea because “it’s wrong” – I will follow that one up as soon as I can, but in the meantime here’s another angle for connecting old technology with new technology:

oraclebase's picture

MySQL Upgrades

I read Wim Coekaerts post about the MySQL 5.6.20-4 this morning. I logged on to my server and did the following command as root.

# yum update -y

That’ll be the upgrade done then… :)

If you are using MySQL on Linux you can use the MySQL Repository for your distribution, rather than using the bundled MySQL version, to make sure you stay up to date with the latest and greatest. As long as you stay within a point release (5.6, 5.7 etc.) of the latest version, upgrades should really be as simple as a “yum update”.

pete.sharman's picture

Using the Self Service Portal with Schema as a Service in EM 12.1.0.4

In a previous blog post, I covered setting up Schema as a Service for schema level consolidation. In this post I’m going to cover how to use the Self Service Portal with Schema as a Service in EM 12.1.0.4.

Just as it was in my posting on using the Self Service Portal with DBaaS, our first step here is to login as the Self Service user, so I provide the right username and password and click “Login”:

usingsaas01

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