Hello Gennady, > Hello Chuck and others. > I'd like ask some more questions ) > > 2010/8/27 Chuck Hill <ch...@global-village.net>: >> >> On Aug 25, 2010, at 11:10 PM, Dov Rosenberg wrote: >> >>> I am revisiting some old EOF documentation and wanted to make sure I >>> understood a few things. Are the following statements true? >>> >>> >>> * When an EOModel is found and connected to a database when the app >>> starts up each database connection is mapped to an EODatabaseChannel? >> >> I think that EODatabaseContext is more correct than EODatabaseChannel. The >> context will then use the channel. A db context can handle multiple models >> (the connection information needs to be the same). > > How can single db context handle multiple models ? I see that > EODatabaseContext.forceConnectionWithModel(model,cd,ec) > returns different objects for different models, whereas most of my > models point to the same database with the same connection dictionary. > And would it make sense to somehow force all these models to single db > context?
If you are using Wonder, you could use the following in your Properties file ## Class name to use instead of the JDBCAdaptor, the ERXJDBCAdaptor supports ## connection pooling er.extensions.ERXJDBCAdaptor.className=er.extensions.jdbc.ERXJDBCAdaptor > >>> Is there a default number of EODatabaseChannels opened when the app starts >>> up? Is there a configuration setting that I can set to add more? >> >> One per db context and no. > My problem is that I see my app opening more connections than a number > of models it has. > And those connections do not close even after more than an hour not > used. And it does not reuse all of them for later requests but may > create even more connections. > As a result when running multiple instances on a server with limited > DB-connections I do get "too many connections" error sometimes. > > How could I fight it? Is it possible to control the number of open > connections and close unused ones after certain idle time? Can't respond on this one, but the property above should fix all this. Xavier > > Gennady Kushnir > >> Chuck >> >> >> -- >> Chuck Hill Senior Consultant / VP Development >> >> Practical WebObjects - for developers who want to increase their overall >> knowledge of WebObjects or who are trying to solve specific problems. >> http://www.global-village.net/products/practical_webobjects > _______________________________________________ > Do not post admin requests to the list. They will be ignored. > Webobjects-dev mailing list (Webobjects-dev@lists.apple.com) > Help/Unsubscribe/Update your Subscription: > http://lists.apple.com/mailman/options/webobjects-dev/webobjects%40anazys.com > > This email sent to webobje...@anazys.com > _______________________________________________ Do not post admin requests to the list. They will be ignored. Webobjects-dev mailing list (Webobjects-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/webobjects-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
