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http://issues.apache.org/bugzilla/show_bug.cgi?id=28727 CLOSE_WAIT connections draw 100 % cpu [EMAIL PROTECTED] changed: What |Removed |Added ---------------------------------------------------------------------------- Status|RESOLVED |REOPENED Resolution|INVALID | ------- Additional Comments From [EMAIL PROTECTED] 2004-08-19 01:45 ------- I'm experiencing something similar I believe using Tomcat 5.0.27 on an application server that's proxied over from another (Apache) web front-end. The application runs fine for a time, but quickly CLOSE_WAIT connections to the Apache server start building up and the TC5 server becomes completely non-responsive. truss-ing the Tomcat process reveals some sort of looping activity: /88: lwp_mutex_lock(0x000EC290) (sleeping...) /111: lwp_mutex_lock(0x000EC290) (sleeping...) /65: lwp_cond_wait(0x0078EE88, 0x0078EE70, 0x00000000) (sleeping...) /84: lwp_mutex_lock(0x000EC290) (sleeping...) /9: lwp_cond_wait(0x0002D020, 0x0002D008, 0x00000000) (sleeping...) /141: lwp_mutex_lock(0x000EC290) (sleeping...) /25: lwp_mutex_lock(0x000EC290) (sleeping...) /118: lwp_mutex_lock(0x000EC290) (sleeping...) /60: lwp_cond_wait(0x00D4DDF0, 0x00D4DDD8, 0x00000000) (sleeping...) /42: lwp_cond_wait(0x003FF4A8, 0x003FF490, 0xEE9FF7F0) (sleeping...) /68: lwp_cond_wait(0x00791258, 0x00791240, 0xECFFF7F0) (sleeping...) /61: lwp_cond_wait(0x00D4E4A0, 0x00D4E488, 0x00000000) (sleeping...) /158: lwp_mutex_lock(0x000EC290) (sleeping...) /107: lwp_mutex_lock(0x000EC290) (sleeping...) /22: lwp_mutex_lock(0x000EC290) (sleeping...) /112: lwp_mutex_lock(0x000EC290) (sleeping...) /71: lwp_mutex_lock(0x000EC290) (sleeping...) /183: lwp_mutex_lock(0x000EC290) (sleeping...) /54: lwp_cond_wait(0x0045D220, 0x0045D208, 0x00000000) (sleeping...) /16: lwp_mutex_lock(0x000EC290) (sleeping...) /144: lwp_mutex_lock(0x000EC290) (sleeping...) /114: lwp_mutex_lock(0x000EC290) (sleeping...) /23: lwp_mutex_lock(0x000EC290) (sleeping...) followed by many lines of : /10: poll(0xF98FFD58, 0, 50) = 0 /2: lwp_cond_wait(0x0002CB80, 0x0002CB68, 0xFC77FD30) Err#62 ETIME During this time, Tomcat is apparently sleeping, and completely non-responsive. A restart results in the server responding again for a short time, then going back into the same state. Apache 1.3.27 on web server, using ProxyPass to the application server, Solaris 9 OS, JVM 1.4.2_04. Tomcat version 5.0.27. Any pointers would be appreciated. --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]