-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 Thomas,
On 4/20/15 8:11 AM, Thomas Boniface wrote: > I have tried to find help regarding an issue we experience with > our platform leading to random file descriptor peaks. This happens > more often on heavy load but can also happen on low traffic > periods. > > Our application is using servlet 3.0 async features and an async > connector. We noticed that a lot of issues regarding asynchronous > feature were fixed between our production version and the last > stable build. We decided to give it a try to see if it improves > things or at least give clues on what can cause the issue; > Unfortunately it did neither. > > The file descriptor peaks and application blocking happens > frequently with this version when it only happens rarely on > previous version (tomcat7 7.0.28-4). > > Tomcat is behind an nginx server. The tomcat connector used is > configured as follows: > > We use an Nio connector: <Connector port="8080" > protocol="org.apache.coyote. http11.Http11NioProtocol" > selectorTimeout="1000" maxThreads="200" maxHttpHeaderSize="16384" > address="127.0.0.1" redirectPort="8443"/> The default maxConnections is 10000, so nginx can open that many connections before Tomcat starts to refuse them. How are you observing the "file descriptor peak"? Are you getting errors ? - -chris -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 Comment: GPGTools - http://gpgtools.org iQIcBAEBCAAGBQJVNlhgAAoJEBzwKT+lPKRYMWIQAKWiP7T8HkZq0L9SmqmZr3rv DrlWBVXBq21M3/e0P3MNEnKp73SbZtq82i6Ib58cjBi6DMQQJTGisdb1WUqNkxWL f0J0fizl5wwDho9FJzxHzR/uV3Nm67Bx7QzvroEEyAmE/wRXdFFOlq/rSdKWfVDC jlBE5Seo+AQiURCONEZ9CYHPwm50yeSy9JzGuH1VXcfUTl0NVXS63vOjLp8XeJKO 68jT6CuY5uzjvv6ZXeES73zvcthkCbF1/Si1KSVshQ/+aXAFDJDuXLLx0D7PWNV7 N6jxVeHOoTdogYtfVyuOhQ4Xu6d9d9NddKC1ycMBeRfJP/5zG3YXHAbDdwWP8Sc7 ip9Md6Y+KA089bRhQ92+6kWqWqtxx1Rg1lhRPkY9nOFc5kEFFsWT8NIEIVWtaN80 zcanU29juMtJK/+Ov/vwyHljTxOikl2So3l19K2bBaCa1pDQ+NeKRQq4KISLlfjB 05w88zu7uS8gYbf+uiw/TMZte1skT8tR3AD1Ye5XRV22zz+yKy6Z7nAdGg/bvIug 8ngVWAQ7mxWt6QAtLRMFS4nw+xBNNNRyMYzvFEkZ6d6Wr67SnQXxRKqAIf8nhZ3h tqAnU0iXlhrdQCcVsMq/iv9lMgHo2x1NBNfeClkIz3XDvgVDJBbHNAr49WmlC5/H 3xUS2AOTCIJNuK+W1CTm =i7t2 -----END PGP SIGNATURE----- --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
