[Dovecot] Question about directory hashing
Timo Sirainen
tss at iki.fi
Fri Jun 11 16:39:09 EEST 2010
On pe, 2010-06-11 at 08:16 +0200, Javier de Miguel Rodríguez wrote:
> mail_location=maildir:/buzones/us.es/%1Hu/%2.1u/%n but I get the
> following directory tree:
>
> `-- 0
> |-- -
> |-- 1
> |-- 2
..
Numbers with %H work in a special way (actually I had completely
forgotten about this):
%H - take a 32bit hash of the variable and return it as hex. You can
also limit the hash value. For example %256Hu gives values 0..ff. You
might want padding also, so %2.256Hu gives 00..ff. This can be useful
for example in dividing users automatically to multiple partitions.
> The ideal directory layout should be the following:
>
> First directory level: Letters from a to z
> Second directory level: Numbers from 0 to 200
> Third directory level: %n (username without @domain)
That's not possible, but you could have the same number of directories
with: %2.26Hn/%2.200Hn/%n
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