70.000 Fans waren Gestern auf dem Heiliggeistfeld, noch mehr in Biergärten, Kneipen und auf dem Sofa. Und wir haben wieder einmal eine Grafik vom Rechenzentrums-Traffic. Dieses Mal kann man auch sehr schön die Halbzeitpause sehen, die offenbar viele Zuschauer genutzt haben, um die Onlineangebote unserer Kunden zu besuchen. Weiter so.
Während Jogi’s Jungs sich in Südafrika von Vuvuzelas beschallen lassen und wir alle gespannt vor den Fernsehern und Leinwänden hocken ist es still. Zumindest im Internet. Am deutlichsten konnten wir diesen Effekt am letzten Freitag Mittag sehen. Um mehr als ein Drittel ist der Traffic bei uns im Rechenzentrum in dem Zeitraum zurückgegangen, während wir sonst eigentlich meist recht ruhige und gleichmäßige Kurven sehen.
I was very excited to learn that Oracle accepted a paper I submitted. The title is ‘Utilizing Oracle Solaris Containers with Oracle Database’ and will deal with the two world of Solaris system administration and database administration. I don’t plan to include a live demo but I intend to put some sample code up on this site so attendees can try this at home.
If you missed the call for papers, there is another chance to submit a session through Oracle Mix. They already have a lot of great suggestions on all sorts of topics.
And even if you are not going to speak at the conference, you should definitely come. I have been to OOW two times and loved the open and fun atmosphere. There is plenty to learn and discuss for everybody even remotely interested in Databases or server computing.
When Oracle clusterware detects an error (like no connectivity on network interfaces or to shared disks) it performs a hard and immediate reboot of the Server. This is the documented and expected behavior. Nothing wrong with that. But the annoying part is that solaris will refuse to reboot if any file that makes up the boot archive has changed since the last time the boot archive was synced. This usually happens when you issue ‘reboot’, ‘init 6′, ‘init 0′ and such. Just not when clusterware reboots the server or it crashed because of a power outage. The fix is to boot into failsafe mode, this will detect a broken bootarchive and ask you to fix it. It doesn’t take long but it still requires some manual intervention and this is not what I want to be concerned with when in the middle of the night or during some major RAC database problems. So I was looking for a way to prevent this from occurring at all.
You can manually reboot the archive with ‘bootadm update-archive’ as root user and it is propably a good idea to run this automatically from cron every day or so.
Blogging seems like such a waste of time to me. In my opinion, bloggers are either smart technology evangelists, pony-tailed (ex) CEOs or individuals with too much spare time, too little social life and rarely have anything remotely interesting to share with the rest of the world. Unfortunately, I don’t see myself in the first two categories and yet, I sometimes feel the need to hop on to the web 2.0 bandwagon for fortune and fame in the world wide interweb thingy some people call blogosphere.
So what can be expected to be found at this fine piece of internet real estate? Mostly technology related stuff around Databases, Solaris and server Hardware. Stuff I come across on a regular day at the office. Things that are either uber-cool, not documented elsewhere or make you roll-on-the-floor-laughing. Or things that frustrate me so much that I just have to vent off. Coming to think about it, I could propably fill tons of pages with the last category. And while this is a coroporate blog, this is not so much about promoting my company, our products or services but rather about personal views and opinions.