This past Wednesday, at two minutes, three seconds after 1:00am, the time and date was:

01:02:03 04/05/06

Cool huh? (posted 3:57 PM)  

Now that I'm starting to really like my Mac OS X, they go and do this: Boot Camp: Macs do Windows too. I think personally Mac gave in .. should have stuck to their ground .. so far it's such a better OS. But yeah, very smart to do this :) I do still have a few windows apps I love (third party) for all my geeky things I do. (posted 3:55 PM)  

So I'm guessing this shop talk may be a bit too much, especially when Girl Geek sees how the deal blog :) So this one is for Girl Geek .. perhaps part of the geekswing tour will take us to the Caribbean. Book by next weekend, travel is good until late September:

Caribbean trips @ Expedia from $399. (posted 12:46 PM)  

The previous point generalizes well over to the database world. In this case specifically with MySQL -

Summarizing: when you delete all rows out of a table, the associated disk space frees up. But when you delete only some of the rows, the associated disk space doesn't change until you run an optimize on the table. Then the disk space frees up.

Cool how when you know about one operational discipline (sysadmin, dba, networking, etc) it generalizes well to all operational disciplines? (posted 12:43 PM)  

Some sysadmin things never change. This one happened to me today. A useful little tidbit. For the non-unix out there, this kind of thing is something which will impress your unix buddies.

On unix/linux often times you will see disk usage discrepancies between the du and df commands. Most often it is when you delete a file but a process is open still "using" the file. So du will report less disk space (since it won't see the file) than df which works on the directory inode info - which will still think the file is open and being used.

Answer?

Run lsof (THANK YOU FOR THIS!) and grep for the particular filesystem or file that you deleted. If it shows up then the file is still open. A process will be listed with it. As soon as all processes with that file open are killed, then df will start reporting the correct usage. (posted 12:38 PM)  

OnSale 10% off ends 4/21/06. Use code BWBE0720 at checkout. Includes lots of neat gadgets and techie geeky things. (posted 11:29 AM)  

This is pretty cool .. Over at MacMall: it's a 4gb USB drive that's the size and shape of a credit card .. including what looks like a retractable USB connection. $79.99 (posted 12:01 PM)  

In the oracle install doc for solaris 10, it says there is a new way to change the kernel variables. Gone is the /etc/system. In is project management via prctl. So:

old way:
change shmsys:shminfo_shmmax in /etc/system

new way:

prctl -n project.max-shm-memory -v 50gb -r -i projid [projid]

(assuming 3 is the project id of oracle)

TO MAKE IT STICK ON REBOOT:

projmod -s -K "project.max-shm-memory=(priv,4gb,deny)" [projectname] (posted 4:09 PM)  

Cables to Go Road Warrior. $15.00 with a $15.00 rebate = FREE. Rebate expires 6/30/2006.



1 gig flash drive. $30.99

(posted 3:53 PM)  

something handy .... sure sure, coupons coming soon, but anyway this is a neat thing for the day.

Two Redhat ES4 linux systems: A and B. A needs to have installed on it all software packages B has. So... an easy way to do this (NO WARRANTIES OR GUARANTEES ON THIS .. make sure you do your own double checking on this script so you don't accidentally hose your system)


machine-b# rpm -qa | sort > rpm-b.txt


copy over rpm-b.txt to machine-a


machine-a# rpm -qa | sort > rpm-a.txt
machine-a# diff rpm-a.txt rpm-b.txt | grep "^>" > diff.txt


And you have a list of packages in diff.txt like:


alsa-lib-devel-1.0.6-4
apmd-3.0.2-24
apr-0.9.4-24.1
..
..


Now the trick is rpm likes the package name only, not the revision. I tried a fancy regexp with sed but for some reason sed didn't like it. It worked in perl though. So my perl script:


machine-a# cat diff.pl
#!/usr/bin/perl
$infile="diff.txt";

open(OUTFILE,"> diff5.txt");
open(INFILE,$infile);
while() {
chop($line=$_);
$line =~ s/-[\_0-9a-zA-Z\.]+-[\_0-9a-zA-Z\.]+$//;
print "up2date -i $line\n";


}


If you run this script and redirect the output to a file, you will have a script now to update/install all necessary packages. The output of the command is:


up2date -i alsa-lib-devel
up2date -i apmd
up2date -i apr
..
..


Make sure to do a double check on that to make sure the regexp worked how you expected it to work. (posted 3:30 PM)  

Signed up for the free trial of GoToMyPC awhile back. Wasn't a free trial for very long ..wow I love this thing!

For me it's practical - I need to look stuff up on my home desktop a lot. When I work evenings it's also handy so I can be on the computer the same time Girl Geek is (she's at home) so I can help her out with computer tasks.

On the non-pratical side, it's just very fricking cool to show off to your friends :) (if they are geeky) The cost is $11/month and it works over https. Check out the free 15 minute trial (need a CC # to start the trial). (posted 2:36 PM)  

what a great feeling in the morning ...

(posted 9:31 AM)