Date: Wed, 05 Jul 2006 09:27:29 -0500 From: Kevin Kinsey <kdk@daleco.biz> To: Pietro Cerutti <pietro.cerutti@gmail.com> Cc: freebsd questions <freebsd-questions@freebsd.org> Subject: Re: maxusers -> kernel.maxfiles Message-ID: <44ABCC51.4060706@daleco.biz> In-Reply-To: <e572718c0607050506m35e8b074l31db8a06894e472b@mail.gmail.com> References: <e572718c0607050506m35e8b074l31db8a06894e472b@mail.gmail.com>
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Pietro Cerutti wrote: > Hi list, > today my home server stopped responding because of a "kern.maxfiles > limit exceeded" problem. > > I noticed that the maxfiles MIB value was set to 1928, which I find > ridiculous even for a small home server ( i386-6.1-RELEASE, mySQL, > Apache, LDAP, Postfix, SSH, SFTP ). > > On my laptop, which is running 6.1-STABLE, this defaults to 25000. > > Reading [1] I discovered that this value is computed basing on the > value of maxusers, which is supposed to be in the kernel configuration > file. > > Since I didn't set the maxusers option in my kernel conf, I was > expecting to find a default value somewhere, and here's where I > miserably fail... > > So, could you please tell me: > 1) where's the default for it? > 2) how is the kern.maxfiles value exactly computed? Warning, Pietro: IANAE. 2) Looks like (6-STABLE here) it's approximately (kern.maxusers^5) --- 1) if you wish to set a different value for kern.maxusers or kern.maxfiles, you do it in /boot/loader.conf. You can see quite a bit about this in /boot/defaults/loader.conf. HTH, Kevin Kinsey P.S. The doc in the link you sent does seem a little confusing. Might be worth discussion on the docs list? -- One good thing about music, Well, it helps you feel no pain. So hit me with music; Hit me with music now. -- Bob Marley, Trenchtown Rock
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