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From Bob Hall <>
Subject Re: [Tomcat JDBC Pool] Close pooled connections via JMX
Date Sun, 04 Mar 2012 20:49:38 GMT

From: Brooke Hedrick <>
To: Tomcat Users List <> 
Sent: Sunday, March 4, 2012 12:21 PM

> On Mar 4, 2012, at 1:35 PM, Chema <> wrote:
>>> We use Spring w/ Hibernate as I recall.  Yes, we have talked about that - a
>>> ping query.  What we don't like about that is now we have a tc ping and app
>>> ping.  We have also discussed just changing the tc borrow/ping to do the
>>> dual@remotedb query as this would test both primary and remote.  We have
>>> tested this and it works.  What stinks about this is we only access the
>>> remotedb 10% of the time.
>> Well, I don't know how works Hibernate , but I know that you can have
>> many SessionFactory
>> Can you define different SessionFactory with different settings , for
>> example, with different pingQuery value?
>> Does Hibernate have a pingQuery setting ?
> Even if it does, are we actually losing the close() method for the connection pool mbean? 
If so, why?
> This change would mean requiring many development teams to change many apps.  I don't
see the value of requiring that change - if it is actually the case we are losing the close()

Have you tried defining views in the primary database based on the @otherdb queries?

- Bob

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