Re: Finding Broker/Connection leak

An additional question:

How could I monitor the PB-Pool and the Connection-Pools of OJB?

Tino

Tino Schöllhorn wrote:
> Hi,
> 
> I have a situation where we are running out of PersistenceBrokers (using 
> 1.0.1). We have a web application which so far runs fine - but somehow 
> some requests are causing the application not to close its PB.
> 
> We can see this when we are monitoring the used connections of mysql 
> which are slowly growing - even if we are using ConnectionPooling. These 
>  connection are on the state SLEEP for quite a long time and seem never 
> to be closed.
> 
> At some point the application runs out of PB (we are using size 100 of 
> the PB-Pool).
> 
> So it seems (quite obviously) that some PBs are not cleanly handled.
> 
> Do you have any advice for us finding those leaks?
> 
> Does it do any good when we "tune" mysql that it discards connections 
> which are quite old (via property "max_timeout")? Is OJB discaring those 
> PBs whose connections have died ?
> 
> I am glad for any suggestions.
> 
> Tino