"Too many open files" error in Linux

Plz increase the file limit on linux box using ulimit i guess. Brij -----Original Message----- From: glassfish@javadesktop.org [mailto:glassfish@javadesktop.org] Sent: Thursday, June 03, 2010 2:37 PM To: users@glassfish.dev.java.net Subject: Re: AW: "Too many open files" error in Linux No. It is a usual machine with Linux OS. [Message sent by forum member 'boraldo'] http://forums.java.net/jive/thread.jspa?messageID=472524 --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscribe@glassfish.dev.java.net For additional commands, e-mail: users-help@glassfish.dev.java.net --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscribe@glassfish.dev.java.net For additional commands, e-mail: users-help@glassfish.dev.java.net

On OpenSuse system fixed the "Too many open files" problem by increasing the limits in "/etc/security/limits.conf": http://www.i-coding.de/www/en/glassfish/configuration/too-many-open-files.html This did not work on Debian5 (think was a bug) Set ulimit in /root/bashrc additionally.

On Thu, 2010-06-03 at 01:18 -0700, glassfish@javadesktop.org wrote: > My Glassfish works on Linux. > I have 3 simultaneous domains. > > Often when I start domain it throws >  >> java.io.IOException: Too many open files > > What should I do to get rid of it ? This is what we did (assuming GlassFish runs as user "glassfish"): Add the following lines to /etc/security/limits.conf to increase the maximum number of open files for the user that Glassfish runs as: glassfish soft nofile 32768 glassfish hard nofile 65536 You will also need to add this line in /etc/pam.d/su: session required pam_limits.so -- ____________________________________________________________ Glenn Holmer                          gholmer@weycogroup.com Software Engineer                        phone: 414-908-1809 Weyco Group, Inc.                          fax: 414-908-1601 --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscribe@glassfish.dev.java.net For additional commands, e-mail: users-help@glassfish.dev.java.net

> What should I do to get rid of it ? Perhaps you should check what is causing it. Do a lsof (ls open files) My GlassFish is installed in a directory glassfishv3 So I : lsof |grep glassfishv3 | wc -l My output is 563, so GlassFish 3 has opened 563 files for a newly started GlassFish. Perhaps you can monitor this value and see if GlassFish is gradually leaking file descriptors. (Which is possible even in Java) If you could prove this, and if I ever meet you, I will buy you a cold beer :) regards Richard.