Re: Shared-Memory-Problem with Online 5 on SCO-OS5

Try looking in your sys admin manual (or do a man command) on 'ipcs' and 'ipcrm'. Some versions of Unix are better at clearing defunct shared memory segments than others, but most don't do all that well. If a process crashes, or gets killed, or probably other ways, the shared memory segments may not get cleared. Over time, that could cause the problem you describe, since it just keeps getting more and more clogged up. If you have the O'Reilly 'Essential System Administration' book, look up 'clearing shared memory segments'. If not, I heartily recommend getting it. Saved my life many times. On Tue, 22 Dec 1998, Bernd Dersch wrote: > Date: Tue, 22 Dec 1998 15:59:06 +0100 > From: Bernd Dersch <bede@uni-koblenz.de> > To: informix-list@iiug.org > Subject: Shared-Memory-Problem with Online 5 on SCO-OS5 > > Facts: > > Hardware: > An Intel Pentium PC with 64MB RAM > > OS: > SCO Unix Open Server 5.02 (for virtuell memory 100MB swap-space configured) > > Database Server: > Informix Online 5 > > I run an Informix 4gl application (compiled with the Informix 4GL compiler). > The application is running about one and a half year. In the first year I had no > problem with this configuration. In the last half year I got a problem with the > memory . When I use the application a lot of time, then I get the error-message > "cannot attach to shared memory". In the first time I can work without any > problem for some weeks (6 -8). Now the error-message was shown every 2 - 4 > hours. > > My question is, has anybody an idea what can to solve the problem? > -- > > >