Date: Fri, 7 Oct 2005 01:24:34 -0400 From: "Tamouh H." <hakmi@rogers.com> To: <freebsd-questions@freebsd.org> Subject: FreeBSD FD_SETSIZE Message-ID: <20051007052631.970BD43D45@mx1.FreeBSD.org>
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Hi! I'm having problems resolving FD_SETSIZE issues with FreeBSD 5.4 and Apache. This error always continues: ==== [Thu Oct 6 14:51:31 2005] [warn] send body: filedescriptor (1367) larger than FD_SETSIZE (1024) found, you probably need to rebuild Apache with a larger FD_SETSIZE ==== I did re-compile apache (we made sure FD_SETSIZE is enabled) however, the problem still occurs. so I modified /usr/local/apache/bin/apachectl and added : ulimit -n 16480 also in /etc/init.d/httpd But the same problem continues, it is happening much less than before, but we continue to see it. Doing <?PHP echo `ulimit -n`; ?> shows: 11095 How else would we need to increase the FD_SETSIZE on FreeBSD 5 ? I read somewhere there is also need to change it at: /usr/include/sys/select.h ? This requires recompiling Kernel, correct ? How about adding this to the FBSD kernel: options FD_SETSIZE nnn as suggested in Apache FAQ: http://httpd.apache.org/docs/1.3/mi...freebsd-setsize Also it appears there are different places the FD_SETSIZE need to be changed as per: http://apache.active-venture.com/descriptors.html I couldn't find good resources about FD_SETSIZE or tuning FreeBSD for large sites except to: <http://translate.google.com/translate?hl=en&sl=ja&u=http://www.nxhack.tarum i.kobe.jp/FreeBSD_kernel_tuning.html&prev=/search%3Fq%3Dfd_setsize%2Bfreebsd %2Bkernel%26hl%3Den%26lr%3D%26rls%3DDVXA,DVXA:2005-06,DVXA:en> Any input or experiences with these are welcomed. Thanks! Tamouh
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