http://www.sqlservercentral.com/blogs/steve_jones/2005/11/15/apologies-and-testing/ Printed 2015/08/04 08:53AM
Apologies and TestingFirst, apologies to the Database Daily readers. I'll include one in
next week's issue as well, but the links didn't work and it's my fault.
The reason it happened is quite simple. I made a change and didn't test
it. But the back story is a touch more complicated and involves the
real reasons why all of us humans cause technology to fail. It started
with an upgrade for the Lyris mail server that we use. I downloaded the
software on Monday, but didn't get around to the colocation center for
a console upgrade until Friday. So I start it Friday and it's running,
showing me the steps on the CMD prompt window and it gets to working on
reindexing a table. So I leave for lunch because I'm hungry and the
room is cold.
I come back to find that the upgrade has failed because the DB ran out
of space. Huh? Space? So I check and my 16GB database file is set to
stop growing at 16GB to prevent server issues. So I increase the space
allowed to 20GB, remove a backup and start again. I think the db was at
12GB when I started, so I'm thinking 20 is fine. It's running and
running and fails again. Same issue.
It's getting late and I'm in the middle of things here, but I have to
get my son from school, so I leave it. Sat morning I log on and look at
the db. I have two large tables, one with 44million rows and one
slightly smaller at 26million. These two tables are GBs in size and
contain lots of historical information. I'm not sure why the data
hasn't been trimmed by the server, but I setup a couple loops to start
cleaning data and go about my day.
Sun morning I get up early, tell my wife I need to work and drive to
the colo. My backup size has shrunk from 11GB on Fri to 5GB and I
figure I'm ok. I start the upgrade, get to the reindex and go get some
breakfast. Sure enough, that was enough space, so I 'm upgraded and
things are working. I generate the DD newsletter, load it and go to
rake leaves and watch football. Now I sent myself a test, but I usually
only test ads and the editorial, not the links. and of course ,they
But why not? Well, for starters, I was converting the newsletter to be
stored in the DB, so the generator went from lots of inline ASP code to
building a variable to store in the db. In one place, not the link, but
the internal href before the link, I forgot to add triple quotes around
the link. I had single ones, so the article href didn't close and the
link didn't work.
I didn't test it because the security patches that I applied on Wed, as
I was about done with the conversion, blew up Visual Interdev 6.0,
which was how I was coding. And I was nervous about moving to VS 2003,
so I fixed a few bugs in notepad, not realizing the links weren't fixed.
They are now and after testing my own site with VS 2003, I'm ready to load the SQLServerCentral.com site and get back to work.