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Pythian

Oracle OpenWorld 2013 – Bloggers Meetup

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Oracle OpenWorld Bloggers Meetup Oracle OpenWorld 2013 is just few weeks away, and of course, we are organizing the Annual Oracle Bloggers Meetup — one of your top favorite events of OpenWorld.

What: Oracle Bloggers Meetup 2013

When: Wed, 25-Sep-2013, 5:30pm

Managing Oracle on Windows: Where’s my Oratab?

If you manage Oracle on Windows, you probably have wondered why it is so difficult to work out which Oracle instances are running and which ORACLE_HOMEs they use. On Unix or Linux, this is a very simple task.  Oracle services and their ORACLE_HOMEs are listed in the oratab file, located in /etc/ on most platforms and in /var/opt/oracle/ on Solaris.  To find what is running, we would usually use the ‘ps’ command and pipe it through grep to find and run PMON processes.

On Windows, it just isn’t this easy. Each Oracle instance runs in a single monolithic oracle.exe process. Nothing about the process indicates the name of the instance. When we want to find all of the configured Oracle services, we can use the ‘sc’ command, and pipe the results through find (I have added emphasis to the ASM and database instances):

And now, ...the video

First, I want to thank everyone who responded to my prior blog post and its accompanying survey, where I asked when video is better than a paper. As I mentioned already in the comment section for that blog post, the results were loud and clear: 53.9% of respondents indicated that they’d prefer reading a paper, and 46.1% indicated that they’d prefer watching a video. Basically a clean 50/50 split.

The comments suggested that people have a lower threshold for “polish” with a video than with a paper, so one of the ideas to which I’ve needed to modify my thinking is to just create decent videos and publish them without expending a lot of effort in editing.

But how?

Big Data is the Commercial Supercomputing in the Age of Datafication

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id="attachment_53081" style="width: 160px" class="wp-caption alignleft">NERSC's Hopper NERSC; Design: Caitlin Youngquist/LBNL Photo: Roy Kaltschmidt/LBNL
class="wp-caption-text">NERSC’s Hopper NERSC; Design: Caitlin Youngquist/LBNL Photo: Roy Kaltschmidt/LBNL

Under The Hood of Oracle Clusterware 2.0: Grid Infrastructure

I’ve recently realized that I hadn’t posted the second version of my presentation — Under The Hood of Oracle Clusterware 2.0: Grid Infrastructure, codenamed UTHOC2. I think it would be very useful as I still see lots of questions being asked, and UTHOC1 covers Oracle RAC 10g and 11gR1 only. 11g Release 2 brought many changes in the clusterware, and the slides needed some good refresh.

Where is Oracle Block Change Tracking Today?

Update 7-May-2013: Almost 100 people filled in the survey and here are the result:

BCT survey results

BCT survey results

How to Troubleshoot OEM 12c Cloud Control Auto-Discovery

I was recently involved in an upgrade project to go from 11.2.0.2 to 11.2.0.3 on an Exadata V2. We hit some snags during the upgrade specifically related to OEM 12c Cloud Control. We performed an out-of-place upgrade and OEM 12.1.0.1.0 had some difficulty in dealing with this.

12c Cloud Control is supposed to run a daily check that looks for new targets on each server. When it finds something new, it places this in a queue to wait for admin approval. With a single click, you can promote the newly discovered target to an OEM managed object.

Quiet Release MySQL Plugin 12.1.0.1.2 — Bug Fixes

This is just a small bug-fix release of the plugin. It has actually been quietly released for a while now. If you have downloaded the plugin recently, you have the latest version. To be sure, check the version in the Console, or you can see it in the file name.

There are two bugs fixed:
1. Deployment on an OMS hosted on Solaris didn’t work. (And I suspect it could be the same for Agents on Solaris.)
2. Changing thresholds on the metrics caused the error “Modification of Target Monitoring Settings has Failed”. Also, applying monitoring template was failing for the same reason.

IOUG Big Data SIG — Kick-Off Meeting at OOW12

Announcing the IOUG Big Data Special Interest Group (SIG)!

We have the SIG meeting at Oracle Open World. Come join us with your morning coffee! There’s nothing better than starting your Big morning with Big Data talks! Yes — we actually managed to get the room at this busy times at OOW thanks to IOUG.

What: IOUG Big Data SIG Meeting

When: 8:45-9:45am, Tue., 2-Oct-2012

Where: Moscone West Level 3, Overlook 3 (OOW12)

Everyone is welcomed. Gwen Shapira is the SIG leader and expect lots of great things in that space. The SIG is also looking for volunteers — that’s going to be a hot space so if you want to engage early, come and let us know.

IOUG Collaborate 2013 — Call for Speakers Informational Webinar

As I’ve become Director of Communities for IOUG recently, I’m intimately involved in many aspects of leading the IOUG community. One of the areas the user group is pursuing all the time is finding new speakers, and it takes a lot of convincing before community members actually start presenting. There are many of you who have exciting projects and implementations to share but can’t quite convince themselves to actually present.

So, whether you are a total newbie presenter or a presenter with experience that didn’t present at IOUG Collaborate conference yet, you might find this webinar useful: IOUG: Call for Speakers Informational Webinar. I hope to see you select one of your projects or a technical area you are excited and knowledgeable about and send your abstract. Feel free to post any question if have them — I’ll make sure they get answered.