On 31/12/2011 13:06, Janne Jalkanen wrote: > Hi all! > > I am seeing odd behaviour with 7.0.23, with the tomcat user's open file count > increasing slowly, but consistently. Two other instances running the exact > same codebase on identical hardware, BUT with Tomcat 7.0.20, are not > exhibiting the same behaviour. 7.0.20 is rock solid, 7.0.23 dies due to too > many open files every now and then. I've increased ulimit for now, but this > is still a bit nasty. > > Any suggestions where to look? Should I file a bug?
Which Connector are you using? What is the minimum that is required to reproduce the issue? > lsof says Did you supply any options to lsof? > > ... > java 21299 ubuntu 87r sock 0,6 0t0 31983006 > can't identify protocol > java 21299 ubuntu 88r sock 0,6 0t0 31983007 > can't identify protocol > java 21299 ubuntu 89r sock 0,6 0t0 31983008 > can't identify protocol > java 21299 ubuntu 90r sock 0,6 0t0 31989046 > can't identify protocol > java 21299 ubuntu 91r sock 0,6 0t0 31986504 > can't identify protocol > java 21299 ubuntu 92r sock 0,6 0t0 31987223 > can't identify protocol > ... > > with a new one every couple of minutes. > > java version "1.6.0_26" > Java(TM) SE Runtime Environment (build 1.6.0_26-b03) > Java HotSpot(TM) 64-Bit Server VM (build 20.1-b02, mixed mode) > > /usr/bin/java -Dnop -server -Xmx1024m -Xms128m -XX:MaxPermSize=256m > -Dcom.sun.management.jmxremote.port=<redacted> > -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager > -Djava.endorsed.dirs=/home/ubuntu/tomcat-bin/current/endorsed -classpath > /home/ubuntu/tomcat-bin/current/bin/bootstrap.jar:/home/ubuntu/tomcat-bin/current/bin/tomcat-juli.jar > -Dcatalina.base=/home/ubuntu/tomcat-run > -Dcatalina.home=/home/ubuntu/tomcat-bin/current > -Djava.io.tmpdir=/home/ubuntu/tomcat-run/temp > org.apache.catalina.startup.Bootstrap start > > OS: Ubuntu 10.04 LTS, kernel 2.6.32 smp. > > No OOM issues, no errors in log files, until the eventual SocketException > when ulimit is reached: > > 30-Dec-2011 19:05:47 sun.rmi.transport.tcp.TCPTransport$AcceptLoop > executeAcceptLoop > WARNING: RMI TCP Accept-0: accept loop for > ServerSocket[addr=0.0.0.0/0.0.0.0,port=0,localport=41709] throws Are you using RMI for anything in your application or is this a reference to the JMX connection? Are you using JMX for something specific? p > java.net.SocketException: Too many open files > at java.net.PlainSocketImpl.socketAccept(Native Method) > at java.net.PlainSocketImpl.accept(PlainSocketImpl.java:408) > at java.net.ServerSocket.implAccept(ServerSocket.java:462) > at java.net.ServerSocket.accept(ServerSocket.java:430) > at > sun.rmi.transport.tcp.TCPTransport$AcceptLoop.executeAcceptLoop(TCPTransport.java:369) > > at > sun.rmi.transport.tcp.TCPTransport$AcceptLoop.run(TCPTransport.java:341) > at java.lang.Thread.run(Thread.java:662) > > /Janne > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > For additional commands, e-mail: users-h...@tomcat.apache.org > -- [key:62590808]
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