Date: Fri, 30 Sep 2022 15:21:15 -0400 From: Aryeh Friedman <aryeh.friedman@gmail.com> To: "Steve O'Hara-Smith" <steve@sohara.org> Cc: questions@freebsd.org Subject: Re: mkdir error message -- what does this mean? Message-ID: <CAGBxaXmPZmnbg0FPcov5dfB-rPaKO2eN=0bLgtSqHQCRACEf_w@mail.gmail.com> In-Reply-To: <20220930200244.31d71c489812fd26c0d39769@sohara.org> References: <e293b9c3b1c168ad1eee3a65510b1aa9@nyclocal.net> <CAGBxaXnc_ornipZxX=NgoDagCjcU80vMXZ1EjZr8j-8RrcdJnw@mail.gmail.com> <CAFbbPuhXUqwcq%2BKsdD=q6C-w6JcypZLMKJGb9vUGp2k8r=G3=Q@mail.gmail.com> <20220930200244.31d71c489812fd26c0d39769@sohara.org>
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On Fri, Sep 30, 2022 at 3:03 PM Steve O'Hara-Smith <steve@sohara.org> wrote: > > On Fri, 30 Sep 2022 14:48:09 -0400 > Paul Procacci <pprocacci@gmail.com> wrote: > > > 31 EMLINK Too many links. Maximum allowable hard links to a single > > file has been exceeded (limit of 32767 hard links per file). > > > > I betcha the parent directory has at least this many number of objects in > > it. > > DIRHASH has a lot to answer for, time was we'd jump through hoops > when writing applications to avoid having huge numbers of files in a > directory, now nobody notices any problems until they hit the limit. To make matters worse many modern apps have a legal requirement to retain files. The offending app is a medical records system that has a minimal retention requirements for most of the files of 18 months and some files as long as 7 years (the offending files where in the second category since they are the "physical" proscription from a doctor [the system has several hundred doctors spread over 50 or so orgs). Note it took 8 years of moderate to heavy use to hit this limit and it was only because we never wrote any code to delete emptied out dirs. > > -- > Steve O'Hara-Smith <steve@sohara.org> > -- Aryeh M. Friedman, Lead Developer, http://www.PetiteCloud.org
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