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Huge problem with COM+ performace? PART TWO

From: Adam Boczek <adam.boczek_at_NO_SPAM_gft-solutions.de>
Date: Wed, 31 Oct 2001 19:34:33 +0100
Message-ID: <1004553339.429437@tux2.ham.acs-gmbh.de>


First of all I'd like to thanx all of you for answers!

I've done some tests today and I'd like to show you results and problems.

All my VB components are correct configured properly (threadings models, type of execution etc.). I have one class thas is responsible for all connection to the database. It also independet dll.

All my clients write now messages into event log.

Problem:
When I start one client and than start long-lasting operation I can start second client, but it waits until the first client ends its process. Looks like database locks but it is not.

Suddenly I've found in log event, that my second client can't initialize com+ object (stops when I call "set a = new MyDll.Function"). When the first client realises or creates new object than some resouces are free and second client goes on, but stops when it once again needs new object. So it looks like problems by resource pooling in com+.

And now the hammer! All runs without problems when... I split my com+ aplication into two aplications! One has only my "db" classes, second the rest of dlls. But where is the explanation? Two dllhost.exe mean tousand of out-process calls (almost all my dll uses "basis-dll") and that degrees preformance. And this configuration causes also problems with transaction in stored precedures of Oracle8i.

Thanx for any help. I have 5 days to lose the problem...

Greets,
Adam



Adam Boczek
IT Consultant
GFT Solutions GmbH
adam.boczek_at_gft-solutions.de

"Adam Boczek" <adam.boczek_at_NO_SPAM_gft-solutions.de> schrieb im Newsbeitrag news:1004438383.943613_at_tux2.ham.acs-gmbh.de...
> I have huge problem :-|. I've written software which uses COM+ as
midletier
> and Oracle8i as datatier. All business components are VB dlls. All clients
> are VB exes. Everything seems to be ok (transactions etc.). But when I
start
> long-lastig process (for example accounting for 300.000 clients) all other
> processes are locked (or very, very slow). I can NOT connect from client
to
> my business components in COM+ (I receive no errors, only information that
> process is pending) . Hardware is ok (2-Procesor server Compaq with 1,2 GB
> RAM etc.), database parameters also (I can connect to database without
COM+
> and run without problems any query), network 100MB/s and hi-end switches.
> I've tried different component configurations (all dll in one package or
in
> groups) but without success.
>
> Any ideas?
>
> Win2k Srv SP2, Oracle8i (8.1.7.2), VB6 SP5, ADO 2.6 SP1, all clients Win2k
> Pro SP2.
Received on Wed Oct 31 2001 - 12:34:33 CST

Original text of this message

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