Tnks David.
But the validationQuery was set at the Resources Tags.
<Context path="/testAdmin" docBase="testAdmin"
debug="0" reloadable="true" crossContext="true">
<Resource name="jdbc/sp360_main_v2" auth="Container"
type="javax.sql.DataSource" maxActive="100" maxIdle="30"
maxWait="10000" removeAbandoned="true"
removeAbandonedTimeout="1800"
logAbandoned="true" username="mqa" password="1nspector"
driverClassName="oracle.jdbc.OracleDriver"
url="jdbc:oracle:thin:xxx/xxxxx@//00.00.00.00:1521/orcl"
validationQuery="select 1 from dual"
testWhileIdle="true"
timeBetweenEvictionRunsMillis="60000"/>
</Context>
David Smith-2 wrote:
>
> CutKiller wrote:
>> If I raise the timeout value in the firewall parameters the connection
>> problem was solved.... but i don't have permissions to do that in real
>> environment.
>>
>> The connections are dead, but this connections stays in tomcat pool with
>> no
>> problems. Tomcat, in a perfect scenario, should recognize the loss of
>> connection, and create a new one.
>>
>> I need this connections anytime.
>>
>>
>>
> Right and it would recognize dead connections if validationQuery is
> provided on the connection pool. The pool will execute the validation
> query before handing your webapp the connection, dropping and creating a
> new connection as necessary. Your problem smells like you are getting
> a connection from the pool and keeping around a long time without
> returning it to the pool. Doing that effectively circumvents the pool's
> ability to validate connections.
>
> Posting details of your setup would be helpful including the <Resource
> ... /> tag that configures your pool and relevant code where things are
> breaking.
>
> --David
>
>>
>>
>> David Smith-2 wrote:
>>
>>> CutKiller wrote:
>>>
>>>> Hi all I have this scenario:
>>>>
>>>> |Tomcat| -> |Firewall| -> |Database|
>>>>
>>>> Sometimes the connection to the database is lost. The cause of this
>>>> fact
>>>> maybe lives in the Firewall. But, the major problem, resides in Tomcat.
>>>> He
>>>> doesn't recognize the connection break. What can i do, for Tomcat knows
>>>> when
>>>> the connections break?
>>>>
>>>> Best Regards,
>>>> Rodrigo
>>>>
>>>>
>>> Can you provide a bit more context for when/how you use connections and
>>> how you expect tomcat to recognize when connections break? In general
>>> webapp code retrieves a connection, does it's business and then closes
>>> the connection to return it to the pool in the smallest reasonable space
>>> .. the whole cycle done and over with by the time your webapp is
>>> finished with the current request if not sooner.
>>>
>>> --David
>>>
>>>
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>>>
>>>
>>
>>
>
>
> --
> David Smith
> Programmer/Analyst
> College of Agriculture and Life Sciences
> Cornell University
> B32 Morrison Hall
> Ithaca, NY 14853
> Phone: (607) 255-4334
>
>
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