RE: java.net.SocketException: Too many open files

2009-06-04 Thread Lawrence Lamprecht
groet, Lawrence Lamprecht -Original Message- From: Caldarale, Charles R [mailto:chuck.caldar...@unisys.com] Sent: Wednesday, June 03, 2009 10:20 PM To: Tomcat Users List Subject: RE: java.net.SocketException: Too many open files From: John Cartwright [mailto:john.c.cartwri...@noaa.gov

RE: java.net.SocketException: Too many open files

2009-06-03 Thread Peter Crowther
From: john.c.cartwri...@noaa.gov [mailto:john.c.cartwri...@noaa.gov] Can someone please help to to understand what might cause such an exception? File descriptor exhaustion - the process has run out of fds. Any i/o could use a file descriptor, whether that's socket to httpd, socket to

RE: java.net.SocketException: Too many open files

2009-06-03 Thread Martin Gainty
Here is the code void acceptConnections() { if( log.isDebugEnabled() ) log.debug(Accepting ajp connections on + port); while( running ) { try{ MsgContext ep=createMsgContext(packetSize); ep.setSource(this);

Re: java.net.SocketException: Too many open files

2009-06-03 Thread John Cartwright
Thanks for your suggestions Martin, I'll look into modifying the memory parameters. Strange thing is that this has been running for weeks w/o any changes in the configuration or contexts. --john Martin Gainty wrote: Here is the code void acceptConnections() { if(

RE: java.net.SocketException: Too many open files

2009-06-03 Thread Caldarale, Charles R
From: John Cartwright [mailto:john.c.cartwri...@noaa.gov] Subject: Re: java.net.SocketException: Too many open files I'll look into modifying the memory parameters. That would be a complete waste of time. The heap size has nothing to do with the problem you're seeing, and the discussion

Re: java.net.SocketException: Too many open files

2009-06-03 Thread John Cartwright
Thanks for your reply Peter. Initially I was assuming that lsof was not showing me files on disk that were being opened and read by servlets. However, I've been unable to reproduce that in a more controlled setting. Since this system has been running for weeks w/o any modification,

RE: java.net.SocketException: Too many open files

2009-06-03 Thread Martin Gainty
: Re: java.net.SocketException: Too many open files To: users@tomcat.apache.org Thanks for your suggestions Martin, I'll look into modifying the memory parameters. Strange thing is that this has been running for weeks w/o any changes in the configuration or contexts. --john Martin