-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 Vicky,
On 6/16/15 12:50 PM, vicky wrote: > Server version: Apache Tomcat/7.0.22 Server built: Sep 27 2011 > 09:40:50 Oh, wow, you really need to upgrade. There are a number of really *really* important security updates that need to be applied. Please stop now and make plans to upgrade to Tomcat 7.0.62. > JVM Version: 1.6.0_24-b24 JVM Vendor: Sun Microsystems Inc You should know that Java 6 is no longer supported, and will not be getting any security updates. I highly recommend that you upgrade to Java 8 as soon as possible. > In tomcat does the [number] of open sockets on http port (netstat > -anlp|grep 8080) equal the number of threads in use in tomcat? > <Connector port="8080" protocol="HTTP/1.1" > connectionTimeout="20000" redirectPort="8443" /> For your version (Tomcat 7) and Connector (BIO, the default for Tomcat 7), the number of open sockets and the number of Tomcat request-processing threads will be the same. The BIO connector stands for "blocking I/O", and each request is processed by a single thread from start to finish, and each thread will wait for a new connection to come in before being dispatched. If you use an <Executor> in your server.xml, it can re-size itself so that you don't have more threads allocated than you are actually using. That may not be necessary for you, but I figured I'd mention it. > Actually i want to understand how & when i can say that the all > threads in a tomcat are fully utilized that why it is responding > slow. Please help in understand. If you want to monitor Tomcat, I suggest you read this: http://wiki.apache.org/tomcat/FAQ/Monitoring It talks about watching the thread usage. You can certainly watch thread usage over time as well and see how many threads are in use. Application slowness can be caused by any number of things, but usually thread-usage isn't the problem unless you have a huge load and a well-designed application. It's usually things like global synchronization of certain resources, or too few database connections, a database that hasn't been optimized properly for the load profile, or inefficient handling of large amounts of data (e.g. using DOM instead of SAX for XML document processing). That said, you might still have a threading problem. - -chris >> <Connector port="8080" protocol="HTTP/1.1" >> connectionTimeout="20000" redirectPort="8443" /> > > Also, what Tomcat version? I'm guessing 6.0.x or 7.0.x. Can you > give us the whole version number, including the "x" at the end? > > - -chris -----BEGIN PGP SIGNATURE----- Comment: GPGTools - > http://gpgtools.org > > iQIcBAEBCAAGBQJVgFM5AAoJEBzwKT+lPKRY18UP/RGonACYQZQlFuldUGRstKB8 > mhllDqlDP3AK5/tMz2VIdVA1BR1Zs2+kpwZZLgEbYZLSJP/NuV5cgsXxNy/bAuLw > g3mZ7fmvTFQfck0G2UqXN/UQlmqTmJooFaWyn980yEwsAv2Fk809Cj4N+bgeseU1 > 0hoUFZqTx2hM0ZXrlVdkACdk186rKfGBkInoKCNzkMn7xHxnip2PSxG3edBNnZQE > TI5eUFO++PgoWarmV+cf4HNYDEK2i1gEP0Yh81WVecZpBS2NxuEL2n3iiWcnX/WJ > 2Vd6ZzeDC8WLLeydCO2UaBLoP8hps+d23WT6pDq7latthr65exPNu3pMt34tZFdp > LH9d+DX6k6RxONIgSOxHNOe5tTBRJX3zXlXzT/d2oqaP3tvz8nW+EUZfqR6otvKX > MMznfECaZOJowSYzLDrSaWC0lMs6OJUM6uYYGYQp4JtdRAOhfqUndt1TgIzjTkgM > LYoRkfx0wGoiVst9pRZYgfqmef0yrKPduMuNsqiuBtS96u9ZCO21DPOs1Jt5aesG > Ll3nASR8gFaJAEjCLzy46O782k9Rjc0jDy0I3vsYIb2TlTkSnFo0jb/io9doJ0dr > 7EEWZoBb/QomQCwjmB3/I/bq0dSQP8ejrVIhrF+N9KK43TsbnJzzG0vm9RkDevqP > O8TDaRpqMsZQrBb6qSft =a4Gs -----END PGP SIGNATURE----- > > --------------------------------------------------------------------- > > 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 iQIcBAEBCAAGBQJVgFr7AAoJEBzwKT+lPKRYr9oP/1+yb22/0Rfwgm8xAVskTHAZ PyvyS8N+NWobZ3nLrlfRf6SJaq51oNqARVK0PbourXejXGFFX4UK/Pl4Yo9iqxvM IodCJDdBUeiXFW7vM7aaJyfalkhpEeG+kkl8zpzOaV1hVy9fa23vuz4yAyirHSRP +WD4P/JoyS91lglhrAekyo3T4lWOGG0GMAefaV/WtxMYB9ZjrBwZqrhrzd4o8PwE Hio52nxhU7CZu9vik6ffZA+j4z35BSoU7VMuey8lFQAVF1Tp3F/twX45hiNP45YZ crMQiawA7XjSyhqtmKVFnMuKFE1e7b+KHzZGOafjLbd9SoLObfo/muafM9NSweE9 ZIOKmLUCbRo8H7Ny2xObjc09sCXVYbqy8FTFKKEEBZ2pVzuZfMa9Iko+B4xiSYz/ 06rLzSLO9nt3929h7oQO7P+L4ov6j0rJQU2eNUzfNHAHpGLM3NhfbQyk19EERyEW 7LWzEzErU+S4iPFOZpTZfg5LVfSXtIfIdLskclTkRqk0TpwTTEF7xXgcCpuCtIst 19DPUnl3hNl8QVX6bx8kEelDHe7A1iTX27dBHKooer4fcB7jDp8FGwD/56SyiEpj MD/QzX2tiXXtiVFhg66P/eym+Brq5Sospb83VPCvOpSwLwNBbov06NhvP8VXtJZl Yd3/+aQyRYZ/n+IA0Aos =xBcG -----END PGP SIGNATURE----- --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
