GPMONGODB-364: MongoDB plugin does not close connections upon shutdown #297
Description
Original Reporter: jgibson
Environment: Tomcat
Version: 2.0.0.GA
Migrated From: http://jira.grails.org/browse/GPMONGODB-364
The MongoDB plugin does not close connections when the webapp is undeployed. When running in Tomcat after undeploying a Grails webapp with the MongoDB plugin the following error is logged:
Mar 24, 2014 12:00:18 PM org.apache.catalina.loader.WebappClassLoader clearReferencesThreads
SEVERE: The web application [/abi-explorer] appears to have started a thread named [MongoCleaner897194512] but has failed to stop it. This is very likely to create a memory leak.
Because the webapp isn't cleanly undeployed the PermGen memory is never released and eventually Tomcat fails with OutOfMemory errors.