geronimo-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From John Sisson <>
Subject Re: Supporting applications that need a database
Date Thu, 02 Feb 2006 01:53:25 GMT
David Jencks wrote:
> Dain has been complaining that the default database is no more and 
> IIUC suggesting that we reinstate it and by default hook at least ejb 
> applications that don't have an explicit database configuration up to 
> it.  Since I removed the default database I'd like to somewhat 
> preemptively explain my thinking.
> Based on my support experiences with another app server that did 
> something like this, I think this is a really bad idea.  What happened 
> there was that no one knew how to connect their app to a non-default 
> database, and we got zillions of problem reports based on the app 
> using the default database rather than the one that was misconfigured :-)
> I also don't think that encouraging all applications to use the same 
> database is a very good policy.  It certainly invites collisions 
> between applications and reduces portability.
> We have the capabilities to build a derby database for a particular 
> schema, and package it , and to bundle a datasource configuration with 
> a j2ee app plan.  This is used for the daytrader and uddi server 
> configurations.  Rather than including a database no one should want 
> :-) and encouraging people to use it, I would rather see us automate 
> the construction of a configured database for an app, and the 
> construction and bundling of a datasource configuration with the app's 
> plan.
> thanks
> david jencks
I agree that it is preferable to automate the construction of databases 
rather than encouraging users/apps to use a default database.

For demo type applications, complete automation of the creation of the 
database at deployment time would be nice. 

For non-demo applications deployed in an enterprise environment, the DBA 
would probably want to be involved in the creation of the database and 
possibly customize the DDL, security etc. 


View raw message