Date: Sun, 22 Oct 2000 18:40:55 -0500 (CDT) From: Mike Meyer <mwm@mired.org> To: John <papalia@udel.edu> Cc: Arcady Genkin <antipode@thpoon.com>, questions@FreeBSD.ORG Subject: Re: Too many open files in system Message-ID: <14835.31495.41764.305120@guru.mired.org> In-Reply-To: <4.3.2.7.2.20001022192850.00adb470@mail.udel.edu> References: <110118888@toto.iv> <4.3.2.7.2.20001022192850.00adb470@mail.udel.edu>
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John writes: > > > > > Looking at the sysctl man page, you'll find plenty of options to > > > > tweak. I see a kern.maxfiles option, though I'm not exactly sure what > > > > it does. Sounds like it may be worth looking into. > > > This option is not explained in the manpage, so I looked at > > > sys/sysctl.h file and it seems that this might be the max number of > > > open files on the system. However, this number is set to 552 right > > > now, whereas `lsof' reports 809 open files. > > > ,---- > > > | soup:/usr/include/sys# sysctl kern.maxfiles > > > | kern.maxfiles: 552 > > > | soup:/usr/include/sys# lsof | wc -l > > > | 809 > > > `---- > > > Am I misunderstanding something? Any further ideas? > >I don't have the lsof man page installed, but it may be counting every > >occurence of a shared file descriptor, whereas kern.maxfiles counts > >the actual open file descriptors. Try checking kern.openfiles. > I may be *really* far off on this, but within the man page for sysctl, > within `sysctl -a` and also in the source code of sysctl.h there appears to > be no reference to kern.openfiles? Even more so interesting is that > `sysctl -a | grep file | less` yields about 60+ lines of "<3>file: table is > full". I'm not sure when openfiles went in (I'm not positive it's in -stable yet), but the idea that lsof and maxfiles are counting different things is the critical one. <mike To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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