Thanks once again. -Nanda
-----Original Message----- From: Tobias Meyer [mailto:[EMAIL PROTECTED] Sent: Wednesday, November 30, 2005 2:51 PM To: 'Tomcat Users List' Subject: Re: Error: Io exception: Connection reset ValidationQuery does an additional query before the connection is returned from the pool. If the Validation fails, the pooled connection is dropped and a new connection is initiated. see: http://jakarta.apache.org/commons/dbcp/configuration.html Cheers, Tobias -----Ursprüngliche Nachricht----- Von: KUMAR, NANDA [AG-Contractor/1000] [mailto:[EMAIL PROTECTED] Gesendet: Mittwoch, 30. November 2005 16:29 An: 'Tomcat Users List' Betreff: RE: Error: Io exception: Connection reset Thanks Tobias, I will try as you mentioned below. Could you please let me know what "validationQuery" parameter does and where I can find these information on tomcat documentation. -Nanda -----Original Message----- From: Tobias Meyer [mailto:[EMAIL PROTECTED] Sent: Wednesday, November 30, 2005 12:38 AM To: 'Tomcat Users List' Subject: AW: Error: Io exception: Connection reset Maybe the user hit the "stop" button on the browser while downloading a page or binary. IIRC this will give you IOExceptions in your servlet when trying to push more data in the "dead" connection. It could also be your firewall, that times out connections which have not been used for some time. If you use tomcat connection pooling, try using <parameter> <name>validationQuery</name> <value>select 1</value> </parameter> in the ResourceParams of your jdbc connection definition in server.xml (see tomcat documentation for details) Hth, Tobias > -----Ursprüngliche Nachricht----- > Von: KUMAR, NANDA [AG-Contractor/1000] > [mailto:[EMAIL PROTECTED] > Gesendet: Mittwoch, 30. November 2005 00:54 > An: users@tomcat.apache.org > Betreff: Error: Io exception: Connection reset > > > Very often we are getting Io Exception: Connection reset > error. There is a > firewall between tomcat app server and DB server. > I wonder whether firewall is closing the connection or what > could be the > reason. 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