Let's get right to it, starting with Oracle XE.
Installing Oracle XEThis is actually quite straightforward, assuming you have followed the prerequisite steps in part one.
As part of (more...)
Read and monitor Oracle related blogs and news sources, all in one place.
And a few other obscure applications that I cannot even recall anymore.
Currently, and over the last 6 to 8 years, I have been using ZOC.
The background of this story is: In the beginning these were the first DOS PC’s (more...)
This how you install SQL Developer on Mac OS Yosemite. The first thing you need to do is download and install Java 8, not Java 7 on your Mac OS Yosemite, as suggested on some web sites. You can determine whether or not Java is installed by running the following command:
Mac-Pro-3:~ username$ java -version No Java runtime present, requesting install.
You must accept the Java license to install Java 8 on the (more...)
I am faced with a situation on how to creating locking mechanism for RMAN backup.
Script dbf.sh backups database and can be run simutaneously if it’s not for the same database.
Hence dbf.sh sh running for PROD1 & PROD2 at the same time is VALID and running for PROD1 & PROD1 at the same time is NOT VALID.
While dbf.sh is running, arc.sh (backup archivelog) should not be running.
This was instigated (more...)
It’s possible folks didn’t notice but Mac OS X no longer includes XQuartz by default from Maverick forward. You need to download XQuartz and install it. I’d recommend after you install Xcode.
Launch XQuartz and then either use the
bash shell it opens or open a Terminal
bash shell session. Inside the shell, you might start Secure Shell (
ssh) like this:
Mac-Pro-3:~ michaelmclaughlin$ ssh firstname.lastname@example.org email@example.com's password: (more...)
While working through getting my Mac OS X to work with X11, I stumbled on some interesting errors and misdirection solutions. Like most things, the solution was straightforward. Then, it struck me that I hadn’t installed it on my Fedora image. This blog post show you the errors I got the way to get it to work, and how to install X11 on Fedora.
The first step requires discovering the package. If you remember
During a recent X5 installation I had to configure Link Aggregation Control Protocol (LACP) on the client network of the compute nodes. Although the ports were running at 10Gbits and default configuration of Active/Passive works perfectly fine the customer wanted even distribution of traffic and workload across their core switches.
Link Aggregation Control Protocol (LACP), also known as 802.3ad is a methods of combining multiple physical network connections into one logical connection to increase (more...)
This is a very simple post to show the results of some recent testing that Tom and I ran using Oracle SLOB on Violin to determine the impact of using virtualization. But before we get to that, I am duty bound to write a paragraph of text featuring lots of long sentences peppered with industry buzz words. Forgive me, it’s just the way I’m wired.
It is increasingly common these days to find database environments running (more...)
In my previous article I started exploring the memory usage of a process on a recent linux kernel (2.6.39-400.243.1 (UEK2)), recent means “recent for the Enterprise Linux distributions” in this context, linux kernel developers would point out that the kernel itself is at version 3.19 (“stable version” at the time of writing of this blogpost).
The previous article showed that every process has its own address space, and that different (more...)
This blogpost is about finding the actual amount of memory a process is taking. In order to do so, this post dives into the memory mechanisms of Linux. The examples in this article are taken from an Oracle Linux version 6.6 server, with kernel 2.6.39-400.243.1 (UEK2). This is written with the Oracle database processes in mind, but actually uses examples of a processes running ‘cat’, which means the contents of (more...)
I’m delighted to say that this is another guest post from my good friend Nate Fuzi, who performs the same role as me for Violin but is based in the US instead of EMEA. Because he is American, Nate thinks that scones are called “biscuits”, that chips are called “fries” and that there is nothing – *nothing* – that cannot be improved with the simple addition of bacon. Clearly, something is fundamentally wrong with him (more...)
I was testing Oracle Goldengate on a non-clustered Oracle 184.108.40.206 database with ASM. With ASM, you need to have the grid infrastructure installed. The cluster ware for the single node install is called ‘oracle restart’.
The most convenient way to have Goldengate running at startup that I could find, was using the Oracle Grid Infrastructure Agents. These agents are not installed by default, you need to download these from the Oracle Technology (more...)
This article is written with examples taken from an (virtualised) Oracle Linux 6u6 X86_64 operating system, and Oracle database version 220.127.116.11.1. However, I think the same behaviour is true for Oracle 11 and 10 and earlier versions.
Probably most readers of this blog are aware that a “map” of mapped memory for a process exists for every process in /proc, in a pseudo file called “maps”. If I want to look (more...)
When using the Android SDK for testing mobile applications (for instance, created with MAF, Mobile Application Framework), you can utilize the GPU for hardware acceleration on the Windows platform. This will greatly improve the performance of the emulator. To be able to use the acceleration, you’ll need to install a separate package called Intel x86 Emulator Accelerator (HAXM installer).Android SDK Manager
If you’re on the Linux platform, you notice that the Status is “Not (more...)