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sql server msde : ONLY 5 concurrent connections?


Jens Süßmeyer
4/18/2005 12:00:00 AM
http://forums.msdn.ph/ShowPost.aspx?PostID=39677

HTH, Jens Süßmeyer.

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"chris" <anonymous@discussions.microsoft.com> schrieb im Newsbeitrag
news:1f0201c54401$463bd6f0$a601280a@phx.gbl...
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Hugo Kornelis
4/18/2005 12:00:00 AM
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Hi Chris,

It isn't true.

MSDE imposes no limit on the number of connections. It does impose a
limit on the number of concurrent workloads (i.e. internal threads in a
busy state - usually executing your queries). The limit is set to 8
concurrent workloads, but internal processes take away the first 3,
leaving you with 5 to spend for your goals. If more than 8 workloads are
active at the same time, performance for all workloads is throttled. ANd
the more you exceed the limit, the more the performance will be
throttled.

In a typical data-entry situation, you can easily exceed 20 or even 40
connections - if the data entry screens are complex and the server-side
processing limited, you could even hit 100 connecitons without problems.

On the other hand: if you use complex processing, using a client to
spawn multiple sessions, each executing complex and time-consuming
queries in parallel to each other, then executing the process from just
one computer at a time might already be enough to exceed the limit and
degrade the performance.

http://msdn.microsoft.com/library/?url=/library/en-us/architec/8_ar_sa2_0ciq.asp?frame=true

Best, Hugo
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chris
4/18/2005 3:27:51 AM
Hi all,

Is it true that MSDE can only handle 5 concurrent
connections? I cant seem to find the proof in the
William (Bill) Vaughn
4/19/2005 8:39:49 AM
And this workload limit is removed in SQL Express (MSDE's replacement).

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William (Bill) Vaughn
Author, Mentor, Consultant
Microsoft MVP
www.betav.com/blog/billva
www.betav.com
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