[jboss-user] [Datasource Configuration] New message: "Re: Problem with number of database connections (Oracle)"

[Michal Rorat]

User development,

A new message was posted in the thread "Problem with number of database connections (Oracle)":

http://community.jboss.org/message/519839#519839

Author  : Michal Rorat
Profile : http://community.jboss.org/people/michal_rorat

Message:
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adrian at jboss.org wrote:> 
> 43-5=38
>  
> 5 is the number of connections that get created when you first use the datasource, if you specify a min-pool-size of 5.
>  
> Since that number matches the difference in configuration that suggests to me that there were none in the pool before the change.
>  
I just tested the application with one MessageDrivenBean removed and started JBoss created 34 connections. Since I have 5 of them with preety much the same configuration we can assume that they reserve 20 connections - but still - what reserve remaining 18 of them?
 
this is my MDB annotation:
 
@MessageDriven(name = "abcQueueListener", 
        activationConfig = 
        { 
            @ActivationConfigProperty(propertyName = "ProviderAdapterJNDI", propertyValue = "OAQJMSProvider"),    
            @ActivationConfigProperty(propertyName = "UseDLQ", propertyValue = "false"),  
            @ActivationConfigProperty(propertyName = "destinationType", propertyValue = "javax.jms.Queue"),  
            @ActivationConfigProperty(propertyName = "destination", propertyValue = "queue/abc"),  
            @ActivationConfigProperty(propertyName = "acknowledgeMode", propertyValue = "Auto-acknowledge"),
            @ActivationConfigProperty(propertyName = "Durable", propertyValue = "false"),
            @ActivationConfigProperty(propertyName = "SessionTransacted", propertyValue = "false"),
            @ActivationConfigProperty(propertyName = "MessageSelector", propertyValue = "JMSType='abc_BLOB'"),
            @ActivationConfigProperty(propertyName = "maxSession", propertyValue="3")
        })

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