-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 Dustin,
On 10/27/16 1:45 PM, Dustin Delage wrote: > Looks like the app is now slated for redevelopment. Thanks > everyone. I still think this has nothing to do with your application... - -chris > -----Original Message----- From: Mark Thomas > [mailto:ma...@apache.org] Sent: Thursday, October 27, 2016 4:48 AM > To: Tomcat Users List <users@tomcat.apache.org> Subject: Re: Tomcat > 9 exe, High CPU usage due to TCP I/O with itself > > On 26/10/2016 18:07, Dustin Delage wrote: >> Tomcat 9, running on Windows Server 2008, runs the CPU at 79% - >> 90% continuously. The only activity is tomcat spamming itself >> with TCP traffic. Same proc ID, out one port, to another port >> back to itself. > > Tomcat doesn't do that. That looks more likely to be an app issue. > > A series of thread dumps (3 thread dumps, 10 seconds apart) should > provide some pointers as to what is going on. A profiler (e.g. > YourKit) would be better. > > Mark > >> >> A small sample from Process Monitor: >> >> ##################################################################### # >> >> #### >> ##################################################################### # >> >> #### >> ################## 10:16:04.7458125 AM Tomcat9.exe 1932 TCP >> Receive 7f00:1::d880:fe03:80fa:ffff:49199 -> >> 7f00:1:ffff:ffff:ffff:ffff:ffff:ffff:49198 SUCCESS Length: 1, >> seqnum: 0, connid: 0 10:16:04.7458374 AM Tomcat9.exe 1932 TCP >> Send Sage-Web03.sage.local:49198 -> Sage-Web03.sage.local:49199 >> SUCCESS Length: 1, startime: 12341635, endtime: 12341635, seqnum: >> 0, connid: 0 10:16:04.7458805 AM Tomcat9.exe 1932 TCP Receive >> 7f00:1::d880:fe03:80fa:ffff:49197 -> >> 7f00:1:ffff:ffff:ffff:ffff:ffff:ffff:49196 SUCCESS Length: 1, >> seqnum: 0, connid: 0 10:16:04.7458972 AM Tomcat9.exe 1932 TCP >> Send Sage-Web03.sage.local:49196 -> Sage-Web03.sage.local:49197 >> SUCCESS Length: 1, startime: 12341635, endtime: 12341635, seqnum: >> 0, connid: 0 10:16:04.7459244 AM Tomcat9.exe 1932 TCP Receive >> 7f00:1::d880:fe03:80fa:ffff:49197 -> >> 7f00:1:ffff:ffff:ffff:ffff:ffff:ffff:49196 SUCCESS Length: 1, >> seqnum: 0, connid: 0 10:16:04.7459507 AM Tomcat9.exe 1932 TCP >> Send Sage-Web03.sage.local:49196 -> Sage-Web03.sage.local:49197 >> SUCCESS Length: 1, startime: 12341635, endtime: 12341635, seqnum: >> 0, connid: 0 >> ##################################################################### # >> >> #### >> ##################################################################### # >> >> #### >> ################### >> >> Attaching an image of my findings as well >> >> Thank You, >> >> D Delage >> >> >> >> >> --------------------------------------------------------------------- >> >> 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 > > --------------------------------------------------------------------- > > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > For additional commands, e-mail: users-h...@tomcat.apache.org > -----BEGIN PGP SIGNATURE----- Comment: GPGTools - http://gpgtools.org Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQIcBAEBCAAGBQJYElPDAAoJEBzwKT+lPKRY7qoP/jL/CvgwumQ8n5f4vw4yFYFC IedXndeyp6iQ5XGKi+XjjjCPUHPf0rQgjBtfn1yBmVh8Pn2QKA4SGVPrQoRwD/Q1 5HSY8n4cALaeTBLUbf/rVqeu3zzRs+TDPTf9O6MHa6PXj9LTxlRB8PqEzV8ltnLT 1UHC5w8XvDTFtVRRnmYdr0615zByEEf1l6EUbFZsi+fRTA/f39eMohXDgNYQzJ1j WL1BcmpBPJfxHZjnfkOxI8QnieAnBprNGk9T8cpbuTFURTG9B0HZ/LtWOGaCN63e Ji2Riu84TZx0Y2uz5XwunyPykRqBxMRyZhtzvCuomna8R+hYf+6i3utXnzcaKwID dAvJm7vr/BbJen5tzvzGkAX26Zl4I6UCfcVzp0OW1wmbX+gTLdmEaT0kQrO5Udz4 ZraXF5zxwYEh/BHtVv/tF6GrOSI8c3GUZOZwi6P7ItMiCahkj8seAgPBA49g9wrq HBuGRSaTW6xdyZoYzJVX4gyTjVPrCm71Ky8eORh96EnMYW/Rd+zCq9sy8UCkBg5V /aFmv+ax1PFPNByMQKtRRItQorxLanmt2Z/K1SWm6kDHhT7hMHFZcHe/Q3QMiTwi sbeGXCCGH5KEZC+j/w8OzfPJgJPJYrMyuJs/CcBNxp9zYZISL8N/IcqMFqkSMl0g QGYcT3vU2hHFlD75Ksn/ =NpHn -----END PGP SIGNATURE----- --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
