Article View: borland.public.cppbuilder.database.multi-tier
Article #684Re: Data Access Components, TDatabase, TSession with Distributed application
From: Dmitri Bobkov
Date: Mon, 23 Apr 2001 14:13
Date: Mon, 23 Apr 2001 14:13
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2620 bytes
Hi Mark, May be I described our situation unclear. We are using DCOM in Apartment threading model running as Remote AppServer, from client side we have just normal application connected to AppServer through TDCOMConnection and uses TClientDataSets. Our sever has one RDM which contains one shared DB object, one TSession object with AutoSessionName, many TQueries, TUpdateObjects and TDataSetProviders, multithreading. As we figured out, AppServer allows to have only 256 clients connected because BDE treated AppServer in DCOM implementation like one client app on that machine ), and all the threads created inside AppServer ignored by BDE as new client connections and BDE allows to have in this case only 256 sessions open for whole AppServer. But we actually must to support more simultaneous connections. What's wrong in our schema? Dmitri "Mark Cashman" <mcashman@temporaldoorway.com> wrote in message news:3AE0EC41.F72DDAE9@temporaldoorway.com... > I find it hard to imagine the computer on which you are running is large > enough to sustain that level of concurrency, even under NT. > > Why do you need 256 threads per client? > > ------ > Mark Cashman (TeamB - C++ Builder), creator of The Temporal Doorway at > http://www.temporaldoorway.com > - Original digital art, writing, music and more - > C++ Builder / JBuilder Tips and The C++ Builder Programmer's Webring > (Join us!) > http://www.temporaldoorway.com/programming/index.htm > ------ > >
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: fcd2b,f9bad8135008e5df X-Google-Attributes: gidfcd2b,public X-Google-ArrivalTime: 2001-04-23 07:27:34 PST From: "Dmitri Bobkov" <dbobkov@workflowint.com> Newsgroups: borland.public.cppbuilder.database.multi-tier References: <3ADB9C67.EEF3D946@pechiney-zs.com> <3ADD0865.96AFE583@temporaldoorway.com> <3ae0b544$1_2@dnews> <3AE0EC41.F72DDAE9@temporaldoorway.com> Subject: Re: Data Access Components, TDatabase, TSession with Distributed application Date: Mon, 23 Apr 2001 10:13:32 -0400 Lines: 45 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Newsreader: Microsoft Outlook Express 5.00.3018.1300 X-MimeOLE: Produced By Microsoft MimeOLE V5.00.3018.1300 NNTP-Posting-Host: 64.230.24.179 Message-ID: <3ae43888$1_1@dnews> X-Trace: dnews 988035208 64.230.24.179 (23 Apr 2001 07:13:28 -0700) Path: arc1-ca.pugleaf.net!newsfeed.google.com!sn-xit-02!supernews.com!news.tele.dk!209.98.98.64!news-out.visi.com!hermes.visi.com!hub.org!hub.org!PeerFeed.KWeb.on.ca!dnews