-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 Jian,
On 4/24/15 10:17 AM, Jian Wu wrote: > I am running a website with a load balancer (software) and three > web servers, each of which deploys an instance of Tomcat 7. Just to be clear, you have a single load-balancer, 3 web servers (httpd?), and 3 Tomcat servers? Or is Tomcat considered a "web server" in this scenario? > While the other two web servers look OK, there is one web server > which often gives me trouble after restarting Tomcat. > > Basically, the maxThread (2000) is reached and the server is almost > not accessible. That's a lot of threads. > When I open the server:8080/manager of that server, I found that > all the Stages under "http-nio-8080" are "S"! The values of > "BSent" and "BRecv" are all 0 KB. What does that mean? Those are metrics I don't recognize. Are these stats kept and shown by the load balancer? > To solve this problem, the only way I know is to restart Tomcat, > but after several days, the problem emerges again. > > These three servers are deployed in exactly the same way, so it is > very strange that one of them uses all 2000 theads, but the others > use only less than 300 threads! Currently, the load balancer > distributes 3/7 traffic to Server 1, 2/7 traffic to Server 2, and > 2/7 traffic to Server 3. The problematic server is Server 2. Can you post your configuration for Tomcat's <Connector>s? Remember to remove any sensitive information that may be in there. - -chris -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 Comment: GPGTools - http://gpgtools.org iQIcBAEBCAAGBQJVOlWuAAoJEBzwKT+lPKRYHTIQALHGK6IzqAu0dDmRKmluxcAd 7CFKxg1Te3PyJP7+nIhTlHrlTTBwwP8TE/RGdJgsJW0rG8NxApn+UX+TaI9r9srw apR9hK49zP7KicmJZygGspSFOdmC1KpuXudV19mbLrdmoWRWKWwZs5d4ujUzemSG wrfSH7ARAhIczkYrLhwIo/V52k2wwD7DAzzGrcVsNWvhCfFjAhF5d/E/NRk1w8tv xAGAJCmQFUcpxOFqN3i9T63HiLuotv5kXiL/YuTikNEFbeaf/5C8niunYjVNJsaf Py1kzW/V8+uPmzhklq1paV0o/aQ3W0RROHF8zGn19I9VBmEMTwN00RprXkaAEsbR ghLb6XlrCaAk1VxsxMUiimKhrscFsIT5aiPaFdci+Ti7szrluAuhk4a27lMgzBFf Y5KJ7d3S0cch7TWIYMykymsg5yUPAkPCKgHjoxpWMNmnOqyN0ksJgr7Be4ZlNoJQ BoIRmPbN29v3x59rDnC9pMQ75e1Ua5gisWrzbWV+KrS2kOQKLhAsEc7dRSGJYOV7 ebrSIZ7msqPTfMywB9t54DEUVGFM90MDs0L1xa+nqTGJA/lX5w6iiCOcCiTAzbb5 yqP+DGr3ifEy91QRwEEU2j4wdlH/0Z3k3JuTymFH8D3UlUDjYeOhLQWxJ31gePnL /r0thS57aPypDbQ+zbqw =eRCX -----END PGP SIGNATURE----- --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
