Hi there, we use the current Tomcat 6.0 on 2 machines. The hardware is brand new and is really fast. We get lots of traffic which is usually handled well by the tomcats and the load on those machines is between 1 and 6 (when we have lots of traffic). The machines have debian 4.1/64 as OS.
However, sometimes (especially if we have lots of traffic) we get the following exception: INFO | jvm 1 | 2008/01/23 15:28:18 | java.net.SocketException: Too many open files INFO | jvm 1 | 2008/01/23 15:28:18 | at java.net.PlainSocketImpl.socketAccept(Native Method) INFO | jvm 1 | 2008/01/23 15:28:18 | at java.net.PlainSocketImpl.accept(PlainSocketImpl.java:384) INFO | jvm 1 | 2008/01/23 15:28:18 | at java.net.ServerSocket.implAccept(ServerSocket.java:453) INFO | jvm 1 | 2008/01/23 15:28:18 | at java.net.ServerSocket.accept(ServerSocket.java:421) INFO | jvm 1 | 2008/01/23 15:28:18 | at org.apache.tomcat.util.net.DefaultServerSocketFactory.acceptSocket(DefaultServe rSocketFactory.java:61) INFO | jvm 1 | 2008/01/23 15:28:18 | at org.apache.tomcat.util.net.JIoEndpoint$Acceptor.run(JIoEndpoint.java:310) INFO | jvm 1 | 2008/01/23 15:28:18 | at java.lang.Thread.run(Thread.java:619) I We already have altered the ulimit from 1024 (default) to 4096 (and therefore proofing: yes, I have used google and read almost everything about that exception). We also looked into the open files and all 95% of them are from or to the Tomcat Port 8080. (The other 5% are open JARs, connections to memcached and MySQL and SSL-Socket). Most of the connections to port 8080 are in the CLOSE_WAIT state. I have the strong feeling that something (tomcat, JVM, whatsoever) relies that the JVM garbage collection will kill those open connections. However, if we have heavy load, the garbage collection is suspended and then the connections pile up. But this is just a guess. How can this problem be solved? Thank you and kind regards, Tobias. ----------------------------------------------------------- Tobias Schulz-Hess ICS - Internet Consumer Services GmbH Mittelweg 162 20148 Hamburg Tel: +49 (0) 40 238 49 141 Fax: +49 (0) 40 415 457 14 E-Mail: [EMAIL PROTECTED] Web: www.internetconsumerservices.com Projekte www.dealjaeger.de www.verwandt.de ICS Internet Consumer Services GmbH Geschäftsführer: Dipl.-Kfm. Daniel Grözinger, Dipl.-Kfm. Sven Schmidt Handelsregister: Amtsgericht Hamburg HRB 95149
