dovecot - Feb 2016 - more than 6000 subfolders in the same level

Dear All,

I'm going to use a public namespace with more than 6000 folders and
subfolders.

On the local ext4-filesystem the nested IMAP subfolders will all be in the
same directory:

/var/vmail/public/folder1
/var/vmail/public/folder1.subfolder1a
/var/vmail/public/folder1.subfolder1b
...

Is this possible without any performance issues? Would it be better to use
"real" subfolders with / as separator? Is / separator for public
namespace
and . for private namespace possible?

- Chris

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On Mon, 15 Feb 2016, Chris wrote:
> On the local ext4-filesystem the nested IMAP subfolders will all be in the
> same directory:
>
> /var/vmail/public/folder1
> /var/vmail/public/folder1.subfolder1a
> /var/vmail/public/folder1.subfolder1b
> ...
>
> Is this possible without any performance issues? Would it be better to use
> "real" subfolders with / as separator? Is / separator for public
namespace
ext4 should handle it fine. You did not deactivated any default feature:

dir_index Use hashed b-trees to speed up lookups for large directories.

> and . for private namespace possible?
No, I don't think so.

- -- 
Steffen Kaiser
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