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http://issues.apache.org/bugzilla/show_bug.cgi?id=34541 Summary: hang on shutdown - countAllocated not synchronized Product: Tomcat 4 Version: 4.0.6 Final Platform: Sun OS/Version: Solaris Status: NEW Severity: major Priority: P1 Component: Catalina AssignedTo: tomcat-dev@jakarta.apache.org ReportedBy: [EMAIL PROTECTED] This may be a problem in Tomcat 5.X too. We are seeing hangs during shutdown of Tomcat. The localhost_log shows a last line of "2005-04-20 06:03:06 StandardWrapper[/TomcatHang:hangServlet]: Waiting for 2 instance(s) to be deallocated". A thread dump shows the main thread waiting at "at org.apache.catalina.core.StandardWrapper.unload(StandardWrapper.java:1074)". There are no HTTP processor threads running - they have all shutdown. Inspecting the code shows unload waiting for the variable countAllocated to go to zero. However, the code that increments and decrements countAllocated for non-single-threaded servlets is not synchronized, so the value will not be correct in some cases. To test this I added synchronized blocks to the increment/decrement code and no longer get hangs. -- Configure bugmail: http://issues.apache.org/bugzilla/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug, or are watching the assignee. --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
