Looking for feedback: logical process manager
I am working on a future version of ASE and am interested in hearing about your experiences with the logical process manager (LPM). LPM consists of engine groups and execution classes, as well as the ability to set spid priority in an ad-hoc manner via sp_setpsexe. This functionality is sometimes referred to as application queues.
If you have used this feature I’d like to know:
- What was the use case (in other words, why did you use it)?
- What elements did you use? How did you use it?
- Did it meet your needs? Did you run into problems?
- Any shortcomings or requirements that weren’t met?
- What was your overall impression?
If you evaluated the functionality but chose not to use it, please let me know what you were trying to accomplish and why you decided against using LPM.
Finally, if you have use cases or requirements around managing multiple applications in a single ASE server, or managing the priority / resources of specific spids, please pass those along. Unaddressed use cases are extremely useful to hear about.
Please provide your feedback directly to me at david.wein@sybase.com, and include “logical process manager feedback” in the mail subject (I get a lot of mail and this will help make sure I don’t miss your mail!). Please be as detailed and specific as you can about your use cases and results.
Thanks a bunch,
Dave
Managing the Data Explosion: Peter Thawley's Musings
Hi! I’m Peter Thawley, a Senior Director and Architect in the CTO Group at Sybase. With nearly 20 years of work with Sybase products, both as a customer and an employee, I’ve experienced the full gamut of Sybase’s highs and lows. Most of you know me as the original author of sp_sysmon and a performance & tuning guy. Today, I spend a lot of my time working with customers on some of the more difficult problems they face in distributed data management – some of it is operational type of work with DBAs, some architectural with application development teams.
(More...)
Did you know there is a /proc inside of ASE?
Okay, there isn’t really a /proc, but there is something pretty close and getting more like it all the time…
(More...)
TechWave Registration is now open!
Join us Aug. 4 – 8 at the Mandalay Bay Resort & Casino in Las Vegas, NV... for the 10th Annual Sybase User Training and Solutions Conference.
(More...)
glibc Compatibility Problem Solved
I am happy to say that we have fixed a nuisance compatibility issue.
As many of you know ASE has trouble getting along with glibc 2.4 or newer. This has led to the oft referenced LD_POINTER_GUARD environment variable solution to get ASE to boot on SLES 10 and RHEL 5. It has also caused ASE to simply not work on many of the bleeding edge distros.
I am happy to say that this is now solved. The work was done under CR 479363 and is available in 15.0.2 ESD #4 and 15.0.1 Cluster Edition ESD #2. The LD_POINTER_GUARD workaround is no longer necessary and Chris Brown has posted that he has finally been able to upgrade to Ubuntu Hardy.
Read more
TechWave 2008 Call for Papers... Now open
We are now accepting speaker proposals for the 60 and 90 sessions at the upcoming Sybase TechWave conference August 4 - 8th 2008.
(More...)
P&T Podcast with Stefan Karlsson
As I mentioned in my first post, Stefan Karlsson has been hosting a great P&T podcast series. He’s had some of the Sybase "greats" on, such as Peter Thawley, Rob Verschoor, Jeff Tallman, and Steve Bologna. Given the caliber of his guests, I was honored when I got the call from Sweden and Stefan invited me to join him for a discussion of ASE kernel architecture.
(More...)
The future of raw i/o on Linux
I’ve spent most of my posts so far talking about disk i/o with a heavy Linux slant. I might as well address one topic that comes up again and again: what is the future of raw i/o on Linux?
(More...)
Device option follow up: Direct I/O
In my last post I wrote about DSYNC i/o and promised to write about direct i/o. So, without further delay, here we go.
(More...)
TechWave 2007 Call for Papers... Still Open!
The TechWave 2007 Call for papers is still open until March 30. Its Sybase's Premier User Training and Solutions Conference
You can be sure that what happen's in Vegas, doesnt stay in Vegas!
(More...)