Deadlocks are the bane of those of us responsible for designing and
maintaining any type of database system. I’ve written about these before on
the dispatcher level. However this time around, I’d like to discuss them a
little further “down” so to speak, at the database level. Also in talking
to various people about this topic I've found that it’s potentially the
most divisive question since “Tastes good vs. Less filling”
Database deadlocks are much like application ones, typically come when two
processes are trying to access the same database row at the same time. Most
often this is when the system is trying to read and write to the row at the
same time. A nice explanation can be found here. What we essentially wind up
with is the database equivalent of a traffic jam where no one can move.
It’s interesting to note that both Microsoft and SQL server handle these
Darmstadt, December 11, 2009 - Multiple login procedures with different user
name/password combinations are often productivity-sapping inconvenience for
employees. Corporate regulations on password complexity do not provide
sufficient security. Users just write down complex passwords instead of
memorizing them. Such practices are a great security risk making vital data
easily accessible to unauthorized personal.
Secure SignOn for Enterprise Single Sign-On (E-SSO) ensures high user
acceptance, high user productivity, and efficiency by significantly reducing
helpdesk calls and by ... (more)
This is something that has frankly astounded me over the years... For years
vendors such as VMWare and Microsoft have been telling us about the
flexibility, power and savings inherent in consolidating Servers into Virtual
For some reason, the rest of the software industry has not caught on to this
and think that this is not a scalable architecture. I'm amazed. I don't
think any of these software firms have ever looked at a manual or talked to
the vendors or their customers running virtual data centers.
There's no reason production implementations cannot run on a VM. M... (more)
Well it's been just over a day since the announcement of the Oracle/Sun
announcement. A lot has been said about the match, some good, some bad. Most
note (as did I) that the Java and Hardware additions to Oracle are a plus and
that there's a bit of overlap.
One of the most interesting elements of overlap is MySQL.
Sun and Oracle have been going tit-for-tat with acquisitions going back to
Waveset/Thor a couple of years ago in the IdM space. Oracle has been doing
the same thing with SAP trying to build its own version of NetWeaver and an
ERP suite. Now all three companies have the sa... (more)
Security Journal on Ulitzer
The need for an easy single, yet secure, login procedure has always been an
elusive issue for many big organizations. Multiple user names and passwords,
multiple logins, and the ensuing confusion and frustration consume much of a
user's productivity in terms of time and energy.
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