Hi Sean, thanks a lot for your detailed descripton. I will try it tomorrow and let you now if this solved my problem. Olli > -----Ursprüngliche Nachricht----- > Von: Sean Conner [mailto:sean@xxxxxxxxxx] > Gesendet: Samstag, 30. Juli 2005 11:32 > An: users@xxxxxxxxxxxxxxxx > Betreff: Re: AW: AW: AW: [users@httpd] Too many open files ... > > > It was thus said that the Great Oliver Kirchel once stated: > > > > Hi Sean, > > I put it into /etc/init.d/apache2. > > How can I control if the ulimit is now 2048. > > If I do "ulimit -n" after restarting the apache it still shows 1024. > > Yes, that's expected, but I'm not sure if I can explain why > in less than a thousand words. > > You have a simple shell script that does: > > #!/bin/bash > ulimit -n 2048 > /usr/local/apache2/bin/httpd & > exit 0 > > It does a ulimit, followed by running Apache in the > background, then exits. You're sitting at a Unix prompt: > > # > > You check the current ulimit for open files: > > # ulimit -n > 1024 > # > > You then run your script: > > # myscript > # > > And check again: > > # ulimit -n > 1024 > # > > But here's what happens. When you run any command (with a > few exceptions, like "ulimit"), the shell will create a new > process with which to run the command. So let's say your > shell is process 100. You type in "myscript", which creates > a new process, 101. Process 101 (which is the script) will > then do a "ulimit -n 2048" *which affects only itself* (in > this case, process 101). Process 101 then launches Apache, > which will create process 102, but that process, since it was > created from process 101 which has an open file limit of > 2048, it too will get an open file limit of 2048. Since you > specified Apache to run in the background, process 101 > resumes running after starting Apache, but in this case, all > it does is exit back to your shell, which is process 100. > Process 100 still has the original open file limit of 1024. > > I hope that explains it. > > -spc > > > --------------------------------------------------------------------- > The official User-To-User support forum of the Apache HTTP > Server Project. See > <URL:http://httpd.apache.org/userslist.html> for more info. > To unsubscribe, e-mail: users-unsubscribe@xxxxxxxxxxxxxxxx > " from the digest: users-digest-unsubscribe@xxxxxxxxxxxxxxxx > For additional commands, e-mail: users-help@xxxxxxxxxxxxxxxx > > --------------------------------------------------------------------- The official User-To-User support forum of the Apache HTTP Server Project. See <URL:http://httpd.apache.org/userslist.html> for more info. To unsubscribe, e-mail: users-unsubscribe@xxxxxxxxxxxxxxxx " from the digest: users-digest-unsubscribe@xxxxxxxxxxxxxxxx For additional commands, e-mail: users-help@xxxxxxxxxxxxxxxx
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