Re: mkdir error message -- what does this mean?

On Fri, 30 Sep 2022, Steve O'Hara-Smith 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.
>

I hit this limit long, long ago. Maybe Version 4 or 5, made the change and 
forgot all about it. I guess mergermaster and freebsd-update rolled my
number forward or the default was made bigger than anything I have now. The 
only reason for my comment is a bunch of cyrus accounts have inboxes with 
200-300k emails. They happily make and delete folders that subdirectories 
of /var/spool/imap/user/user-name.