For comparing, classifying, benchmarking and forecasting databases, Oracle’s Automatic Workload Repository (AWR) is neat. (But remember! You will need a diagnostics pack license for that as described here and here – if you need a free technology for performance monitoring, consider using Craig Shallahamer’s OSM toolkit.) This post simply describes the package calls to create […]
Setting ulimit -m in AIX
AIX has its own rules, as I have to discover these days. Coming across ulimit, I found out that smitty configures value A here and value B completely elsewhere. Hardest one so far has been “ulimit -m” (“Specifies the size of physical memory, in number of K bytes.” a user can assign), since I could […]
“Basics of Database Technology” again
Tomorrow, there will be a version 2.0 of a lecture from last year, again for 9th-formers of Augustinus Weiden. The handout and the presentation are online now, we will see what Friday brings. Usn […]
New job in 2009 – looking back at A.T.U
After working at A.T.U Auto-Teile-Unger headquarters for over six years, there’s a new challenge calling on January 1st, 2009, and hopefully, it’s for a long time again. I guess it’s a good time to look back: […]
Single Sign On for Apache 2.2 and Active Directory 2003 R2 with SuSE 10.2, mod_auth_kerb and MIT Kerberos
Hi, this is a small howto out of my needs, suggestions are always welcome! Assumptions for this paper You know and basically follow http://www.grolmsnet.de/kerbtut, but there are some facts missing/wrong. 2003R2 KDC’s are 10.0.0.1 and 10.0.0.2 (DNS: dc1.example.com and dc2.example.com) Kerberos Realm for ADS is ADS.EXAMPLE.COM (upper case required!) Web server (hostname.domain) is webhostname.server.example.com DNS […]
Oracle: Remove scheduler jobs in a loop
If there are too much scheduler jobs in an Oracle database, the CJQ process may die unexpectedly. This has nothing to do with job history, not, it’s the number of jobs known to the system. In my experience, the critical number is somewhere around 32.000 in 10.2 64bit. By the way, that’s the solution for […]
Internationalization fever
“Because God got angry at some point in time, computer programmers are forced to deal with localisation and internationalisation.” (From a typo3 tutorial.) That’s a cool sentence, and the point I laughed about it is gone long time ago. The last days I spent with i18n for my “Usn’s web site (http://www.usn-online.de)“. (I don’t consider […]
This site is not tested with Internet Explorer(c) :)
Have you heard of the “Not tested in IE initiative“? If your site matches this criteria, use one of these images there. Regards Usn […]
Oracle: How to stop a (MTS) dispatcher process – mad behaviour of ALTER SYSTEM
Manually stopping a dispatcher process is one of the things I have to look up each time, since it’s needed not that often. And, the word “dispatcher” does not appear in the command line! 🙂 alter system shutdown immediate ‘D000’; where “D000” is the dispatcher process name selected from v$dispatchers or gv$dispatchers. (In the latter […]
Switch workspace on command line
Sometimes, it’s nice to change the current windowmanager workspace on command line, for example if you desire to start a application exactly HERE or THERE. For KDE you may want to do it with “kstart”. But a tool like kstart might not be available for your windowmanager, so have a look at “wmctrl” as well: […]