-----Original Message----- From: David kerber [mailto:dcker...@verizon.net] Sent: Thursday, February 12, 2015 1:00 PM To: Tomcat Users List Subject: Re: tomcat severe error when shutting down service but startup is clean
On 2/12/2015 12:48 PM, Cris Berneburg - US wrote: > > -----Original Message----- > From: David kerber [mailto:dcker...@verizon.net] > Sent: Thursday, February 12, 2015 9:40 AM > To: Tomcat Users List > Subject: Re: tomcat severe error when shutting down service but > startup is clean > > On 2/12/2015 9:06 AM, Wirth, Kevin wrote: >> I keep getting these weird tomcat errors on shutdown on a newly built system >> using tomcat 7.0.57 on a windows 2012 server with jdk 1.7 that I can't >> figure out. This is the catalina log: >> Feb 12, 2015 8:54:31 AM org.apache.catalina.loader.WebappClassLoader >> clearReferencesJdbc >> SEVERE: The web application [/identityiq] registered the JDBC driver >> [com.microsoft.sqlserver.jdbc.SQLServerDriver] but failed to unregister it >> when the web application was stopped. To prevent a memory leak, the JDBC >> Driver has been forcibly unregistered. >> Feb 12, 2015 8:54:31 AM org.apache.catalina.loader.WebappClassLoader >> clearReferencesThreads >> SEVERE: The web application [/identityiq] appears to have started a thread >> named [Thread-3] but has failed to stop it. This is very likely to create a >> memory leak. > >>>> I ran into this a while back, and it means exactly what it says: the db >>>> driver is being registered (loaded), but not being unloaded. I fixed it >>>> by putting the db driver unload commands in a contextDestroyed method. > > David > > I have the same issue as Kevin. What "unload commands" code did you call in > the contextDestroyed method? Are those methods "universal"? The reason I > ask is because we use different ODBC drivers for different environments. I call this code from my .contextDestroyed method (I didn't write it, I copied it from somewhere on the web): public static void unRegisterDrivers() { try { for ( Enumeration<Driver> drivers = DriverManager.getDrivers(); drivers.hasMoreElements(); ) { DriverManager.deregisterDriver( drivers.nextElement() ); } } catch ( Exception e ) { /* log the exception */ } } Thank you for your response. Where do I put this code as I am new to tomcat? The application I am deploying is not written by me so I don't know the code. > >> >> The jdbc driver I am using is in the folder identityiq under the webapps >> directory in tomcat. It is the sqljdbc4.jar driver. This driver is not in >> the tomcat\lib directory. Please help because I am getting no help from the >> vender. Thank you. >> >> Kevin Wirth >> [...] >> > > > -- > Cris Berneburg, Lead Software Engineer > CACI, IRMA Project, 703-679-5313 > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > For additional commands, e-mail: users-h...@tomcat.apache.org > > --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org Astoria Federal Savings is now Astoria Bank. We can now be contacted at our new email addresses @astoriabank.com. This e-mail and any attachments that accompany it are confidential and may be legally privileged. It is intended solely for the use of the individual(s) to whom it was intended to be addressed. Access to this e-mail by anyone else is unauthorized. If you are not the intended recipient, please immediately return the e-mail to the sender and delete the original and any copy from your computer. If the reader of this message is not the intended recipient, or an employee or agent responsible for delivering this message to its intended recipient, you are herewith notified that any dissemination, distribution, copying or retention of this communication or the information contained herein is strictly prohibited. --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
